Railway Signaling: C

Learn more about this collection.
"CY" Tower, WV 1
1965 B&O would have used radio orders   573.9 KB
C. K. Switch, ND 1
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
CA Jct., MO 2
1960 News briefs. 1960-03   1.9 MB
1962 News briefs. 1962-02   1.4 MB
cab signaling 51
1965 AFO circuits can be used in subways   682.4 KB
1947 All-Relay Interlockings On the RF&P   1.3 MB
1947 Annual Review and Outlook   425.1 KB
1940 ATC Tests Ordered   676.8 KB
1936 Bad Collisions on Best Railroads   2.5 MB
1919 Block Signaling Practice on a British Railway (Part 3)   337.3 KB
1951 Cab signal system   455.8 KB
1936 Cab Signaling   7.8 MB
1939 Cab Signaling and Train Control On the San Francisco-Oakland Bay Bridge   7.2 MB
1958 Central opens Young Yard   2.5 MB
1928 Co-ordinating Cab and Wayside Signaling   1.6 MB
1944 Coded Track Circuits for CTC and Cab Signaling   4.0 MB
1936 Demands for Modern Signaling   12.1 MB
1964 Eight cities test automatic train operation   1.1 MB
1960 Gangs do signal maintenance   309.7 KB
1944 ICC Annual Signaling Statistics   6.6 MB
1947 ICC Holds Signal Hearing   507.5 KB
1949 ICC Issues Statistics   850.7 KB
1947 ICC Signal Hearings   179.7 KB
1940 Illinois Central Order   1.3 MB
1936 Importance of Warning Whistle   6.8 MB
1960 Iran railways have simplified ATC   380.5 KB
1935 Letter to the Editor: Use of Cab Signals   1.2 MB
1954 Modern Signaling in New Subways in Stockholm, Sweden   6.7 MB
1959 Monorail is signaled electronically   573.9 KB
1951 More Signal Construction in 1950   1.0 MB
1950 New Rules, Standards and Instructions Issued by the Interstate Commerce Commission   7.9 MB
1954 New Wayside and Cab Signaling   753.2 KB
1960 News briefs. 1960-05   1.0 MB
1961 News briefs. 1961-12   978.0 KB
1962 News briefs. 1962-06   989.1 KB
1964 News briefs. 1964-09   879.4 KB
1965 News briefs. 1965-01   2.0 MB
1965 News briefs. 1965-02   1.9 MB
1965 News briefs. 1965-06   1.2 MB
1965 News briefs. 1965-07   788.2 KB
1965 News briefs. 1965-08   742.1 KB
1965 News briefs. 1965-11   1.2 MB
1966 News briefs. 1966-01   1.4 MB
1935 Obsolescence in Signaling   3.4 MB
1951 Pennsylvania Exhibits Speed Control   512.5 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1944 Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
1958 RS&C 50th anniversary: Looking ahead   652.9 KB
1950 Rules, Standards and Instructions   1.5 MB
1939 San Francisco-Oakland Bay Bridge Interlocking Plants   9.4 MB
1939 San Francisco-Oakland Bay Bridge Signaling and Interlocking   7.9 MB
1949 Santa Fe Gets Some Relief from ICC Signaling Order   2.2 MB
1950 Signaling and Rules   1.4 MB
1952 Speed Control Installed on the Long Island   1.3 MB
1939 Speeding Up Train Operation With Signaling   4.5 MB
cab signals 13
1964 Automatic identity systems proposed   736.1 KB
1935 Cab Signals and ATC on UP Streamliner   2.1 MB
1959 Chicago & North Western Has Unique Hump Cab Signal Controls   2.2 MB
1955 CTC and cab signaling on Union Pacific   789.5 KB
1909 First Annual Report of the Block Signal and Train Control Board to the Interstate Commerce Commission   4.0 MB
1965 News briefs. 1965-07   788.2 KB
1965 News briefs. 1965-09   381.7 KB
1955 Pennsylvania installs wayside equipment for cab signaling   745.7 KB
1935 Pole Lines for Automatic Signaling   1.6 MB
1937 Report of Committee X – Signaling Practice   2.9 MB
1949 Signaling Adapted to Traffic On the Rock Island   5.2 MB
1947 Signaling Order Issued by ICC   533.4 KB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
Cabin Creek, WV 1
1963 News briefs. 1963-03   790.6 KB
cabin interlockings 1
1923 Cabin Interlockings for Crossings   1.5 MB
cable 1
1961 Single Cable System Proposed for Signal and Communications Circuits   808.3 KB
Cadosia, NY 1
1940 CTC on the New York, Ontario & Western   8.2 MB
Cadweld 1
1940 Cadweld (Thermex) Signal Bonds   996.4 KB
Cairo, IL 2
1915 Electric Interlocking at Davis, Illinois   241.3 KB
1937 Ohio Flood Damages Signaling   9.7 MB
Caldwell, KS 1
1949 Signaling Adapted to Traffic On the Rock Island   5.2 MB
Calera, AL 2
1962 News briefs. 1962-04   1.2 MB
1962 News briefs. 1962-10   461.7 KB
Calgary, Alberta 2
1958 CP consolidates interlockings   2.0 MB
1964 News briefs. 1964-10   768.6 KB
Calhoun, AL 2
1964 News briefs. 1964-08   811.5 KB
1965 News briefs. 1965-05   1.4 MB
Caliente, CA 1
1949 625 Miles of CTC in one Stretch   7.9 MB
California 1
1931 State Commission Formulates Requirements of Automatic Interlockers   2.3 MB
California Public Utilities Commission 2
1964 News briefs. 1964-04   1.3 MB
1964 News briefs. 1964-10   768.6 KB
call-on signals 13
1947 All-Relay Interlockings On the RF&P   1.3 MB
1955 At Portland Terminal, combined interlocking   810.6 KB
1958 CN consolidates interlockings   2.1 MB
1958 CP consolidates interlockings   2.0 MB
1944 CTC Speeds Ore Traffic On the DM&IR   4.6 MB
1927 Design a Circuit to Obtain the Desired Operation of the Call-On Arms   602.2 KB
1957 How long sidings save train time   465.2 KB
1951 Modern Interlocking on the Norfolk & Western   710.2 KB
1946 More Difficult to Get a Call-On Signal   488.8 KB
1951 P&LE Rebuilds Interlocking   957.2 KB
1956 Remote Control Converted to CTC   6.6 MB
1952 Soo Line Completes Signaling on 260 Miles of Single Track   737.7 KB
1958 Subway consolidates interlockings   2.2 MB
Calmar, IA 1
1938 Highway Crossing Protection and Spring Switch on Milwaukee   3.2 MB
Calumet River 1
1947 Drawbridge Interlocking on the Elgin, Joliet & Eastern   647.3 KB
Calwa, CA 1
1922 Signal Construction on the Santa Fe   797.6 KB
Camak, GA 1
1947 Automatic Block With Spring Switches installed on the Georgia Railroad   851.4 KB
Camden Station, Baltimore, MD 2
1956 Interlocking Consolidation: Three Into One in Baltimore   6.8 MB
1960 News briefs. 1960-01   1.1 MB
Camden Town, England 1
1958 Programmed interlocking control   337.6 KB
Camden, NJ 3
1937 Delaware River Bridge Signaling   13.9 MB
1924 New Reading Interlocking at Camden   3.4 MB
1965 News briefs. 1965-01   2.0 MB
Cameron, CA 1
1960 News briefs. 1960-07   845.4 KB
Cameron, PA 1
1925 Relieving Congestion by Signals   2.5 MB
Camp Douglas, WI 2
1964 News briefs. 1964-10   768.6 KB
1931 Report on Milwaukee-Omaha Collision   1.5 MB
Campbell, IL 1
1930 Remotely Controlled Signals Replace Manual Block Station on New York Central   1.2 MB
Campville, NY 1
1958 DL&W-Erie joint operation is ready to go   643.6 KB
Canada 1
1911 A Comparison of the Interlocking Laws of the Various States   2.6 MB
Canadian National 68
1953 Canadian National Adapts CTC to Traffic of 12 Trains Daily   7.5 MB
1943 Canadian National Installs a Large All-Relay Electric Interlocking   8.8 MB
1951 Canadian National Installs Centralized Traffic Control On a 117-Mile Sub-Division   501.4 KB
1944 Canadian National installs new type of all-relay interlocking at Montreal   7.0 MB
1938 Changing Relays   1.7 MB
1927 Checking Up on Signal Observance   774.5 KB
1947 Choice of Interlocking Control Machines   266.5 KB
1958 CN consolidates interlockings   2.1 MB
1956 CN Telegraph Moves Into Its New Home   8.1 MB
1960 CNR opens Moncton yard   760.9 KB
1960 CNR uses speed selection for gates   980.7 KB
1962 Computer Simulation of CTC   220.3 KB
1944 CTC On 185 Miles on Canadian National   12.3 MB
1950 DC Track Circuit Trouble   1.6 MB
1934 Desk-Lever Interlocking Installed on Canadian National   1.2 MB
1927 Electric Locking Protection at Interlockers Operated Without Derails   1.1 MB
1962 Electric Switch Lamp Lighting Helps Reduce Operating Expense   661.7 KB
1933 Four-Position Dwarfs   1.5 MB
1955 How CN increased track capacity   516.4 KB
1935 Installation of Bond Wires   4.0 MB
1953 Location of Signal Heads   624.7 KB
1957 More automation for signaling in 1957   1.2 MB
1955 News briefs. 1955-08   830.4 KB
1959 News briefs. 1959-05   506.5 KB
1960 News briefs. 1960-01   1.1 MB
1960 News briefs. 1960-02   995.4 KB
1960 News briefs. 1960-06   1.2 MB
1960 News briefs. 1960-11   875.5 KB
1961 News briefs. 1961-02   1.4 MB
1961 News briefs. 1961-07   648.9 KB
1961 News briefs. 1961-11   1.3 MB
1962 News briefs. 1962-01   986.8 KB
1962 News briefs. 1962-06   989.1 KB
1962 News briefs. 1962-07   494.2 KB
1962 News briefs. 1962-09   829.8 KB
1963 News briefs. 1963-03   790.6 KB
1963 News briefs. 1963-05   720.2 KB
1963 News briefs. 1963-06   961.3 KB
1964 News briefs. 1964-01   535.9 KB
1964 News briefs. 1964-02   981.5 KB
1964 News briefs. 1964-04   1.3 MB
1964 News briefs. 1964-06   812.0 KB
1965 News briefs. 1965-04   1.5 MB
1965 News briefs. 1965-10   1.1 MB
1966 News briefs. 1966-01   1.4 MB
1958 Nine layouts in one interlocking   1.7 MB
1953 One Control Machine for Interlocked Yard Area   4.2 MB
1927 Organization of Railroad Signal Departments   3.9 MB
1935 Preventing Unnecessary Operation of Highway-Railroad Crossing Signals   4.3 MB
1931 Proceed Aspects for Isolated Home Signals   1.4 MB
1959 Pushbutton console for CTC   785.3 KB
1937 Replacement and Life of Lamps   3.0 MB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
1957 Seaway diverts CN mainline   532.3 KB
1937 Shunt Sensitivity and Broken Rail Protection   4.3 MB
1934 Signal Aspects at an Automatic Interlocking Plant   1.2 MB
1963 Signal changes make transit run on railroad   1.1 MB
1960 Signal construction steady in 1959   385.2 KB
1959 Signaling moderate during '58   528.6 KB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
1962 Toronto Railway Conference – Automatic Train Operation   448.4 KB
1932 Track Model Lights   444.9 KB
1961 Traffic Signal Control   277.2 KB
1964 What CTC Can Do For You   417.8 KB
1965 What's the Answer? 1965-07   629.7 KB
1960 What's the answer? AC track circuits   290.3 KB
1958 What's the answer? Approach lighting   237.1 KB
1957 Why not more Centralized Traffic Control?   344.2 KB
Canadian Northern 1
1915 A Half-Interlocking Plant on the Canadian Northern   1.6 MB
Canadian Pacific 58
1949 A Mile-Stone In Signaling   1.2 MB
1937 Approach Locking on Dwarf Signals   1.2 MB
1947 Canadian Pacific Installs Absolute Permissive Block   774.8 KB
1944 Canadian Pacific Installs Automatic Block Signaling   6.8 MB
1944 Canadian Pacific Installs Centralized Traffic Control   4.4 MB
1950 Centralized Train Dispatching   1.4 MB
1938 Changing Relays   1.7 MB
1927 Checking Up on Signal Observance   774.5 KB
1936 Cleaning Mechanical Locking Bars   1.5 MB
1960 Computer analyzes train operation   1.2 MB
1959 Computer simulates train operation   524.0 KB
1939 Controlling Four-Aspect Automatics   1.6 MB
1958 CP consolidates interlockings   2.0 MB
1931 Economy of Smaller Towers   539.7 KB
1915 Electric Train Staff Installation   3.3 MB
1935 False Operation of Crossing Signals   3.3 MB
1964 Gate Control is by GCPs   1.4 MB
1938 Light Signals as Train Order Signals   731.0 KB
1953 Location of Signal Heads   624.7 KB
1936 Maintainers' Blueprint Plans   4.2 MB
1927 Mechanical Interlocker on the Canadian Pacific   1.0 MB
1935 Mechanical Plant Replaced by Electric Interlocking   7.2 MB
1946 More Difficult to Get a Call-On Signal   488.8 KB
1951 More Signal Construction in 1950   1.0 MB
1936 Motor Car Indicators   2.9 MB
1955 Much is new in signaling for 1955   826.7 KB
1961 News briefs. 1961-03   1.0 MB
1961 News briefs. 1961-04   1.5 MB
1962 News briefs. 1962-05   826.8 KB
1962 News briefs. 1962-06   989.1 KB
1963 News briefs. 1963-03   790.6 KB
1963 News briefs. 1963-05   720.2 KB
1963 News briefs. 1963-06   961.3 KB
1964 News briefs. 1964-02   981.5 KB
1964 News briefs. 1964-04   1.3 MB
1964 News briefs. 1964-10   768.6 KB
1965 News briefs. 1965-01   2.0 MB
1965 News briefs. 1965-04   1.5 MB
1958 Nine layouts in one interlocking   1.7 MB
1927 Organization of Railroad Signal Departments   3.9 MB
1933 Preventing Lamp Failures   1.2 MB
1935 Preventing Unnecessary Operation of Highway-Railroad Crossing Signals   4.3 MB
1959 Pushbutton console for CTC   785.3 KB
1934 Remote Control Replaces Mechanical Interlocking on Canadian Pacific   1.9 MB
1930 Report of Committee I – Economics of Signaling   2.5 MB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
1957 Seaway diverts CN mainline   532.3 KB
1933 Shortening Masts   879.8 KB
1930 Signal Aspects for a Four Block System   2.8 MB
1937 Signaling at Lap Sidings   2.6 MB
1961 Snow Detectors   231.2 KB
1957 Survey shows progress in signal education   330.6 KB
1937 Switch Indicators Serve as Interlocking Control Devices   5.6 MB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
1933 Testing Lamps on Approach Control   698.7 KB
1934 The Highway Crossing Signal Circuit Problem   1.7 MB
1935 Trap Circuits at Railroad Crossings   4.6 MB
1936 Yard Entrance in Montreal Remotely Controlled   8.2 MB
Canadian, TX 1
1947 CTC Has Long Sidings With Signals on the Santa Fe   2.1 MB
Canby, WA 2
1947 ICC Holds Signal Hearing   507.5 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
Cannneaut, OH 1
1957 Bessemer takes up second track and installs Centralized Traffic Control   700.5 KB
Canyon, TX 1
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
capacity 5
1933 Economics of Modern Signaling   2.1 MB
1956 How to Get Maximum Capacity of Single Track   10.5 MB
1935 Multiple-Block Signaling   7.0 MB
1964 What CTC Can Do For You   417.8 KB
1936 What Is the Capacity of a Single-Track Line?   2.0 MB
capacity analyzer 1
1964 What CTC Can Do For You   417.8 KB
Cape Horn, WA 1
1947 Signals and Slide Fences on the Spokane, Portland & Seattle   1.8 MB
Capital Traction 1
1909 Electric interlocking at C St. and Delaware Ave., Washington, DC   1.4 MB
Capreol, Ontario 2
1963 News briefs. 1963-03   790.6 KB
1959 Pushbutton console for CTC   785.3 KB
car checking 1
1963 S&C Role Is Basic To Bison Yard   3.0 MB
car identification 1
1963 Solid State Devices   938.4 KB
car number recorder 1
1948 Car Numbers “Grabbed” by Voice Recorder   783.1 KB
car retarders 5
1949 A Mile-Stone In Signaling   1.2 MB
1926 Electro-Pneumatic Car Retarders in Service on Illinois Central   3.8 MB
1954 General Railway Signal Company Enters Fiftieth Year   1.6 MB
1955 Much is new in signaling for 1955   826.7 KB
1937 What is in Store for the Signal Field?   1.8 MB
Car-Fax 1
1959 C&NW has system-wide car reporting   702.6 KB
Carbon Cliff, IL 1
1941 Protection at 38 Street Crossings In and Near Rock Island, Ill   3.1 MB
Carbondale, IL 6
1938 Accident Involving Rule 93   1.5 MB
1960 News briefs. 1960-10   1.8 MB
1961 News briefs. 1961-11   1.3 MB
1962 News briefs. 1962-06   989.1 KB
1962 News briefs. 1962-07   494.2 KB
1963 News briefs. 1963-11   1.4 MB
Carbondale, PA 4
1960 News briefs. 1960-01   1.1 MB
1960 News briefs. 1960-02   995.4 KB
1960 News briefs. 1960-03   1.9 MB
1960 News briefs. 1960-06   1.2 MB
Carlinville, IL 1
1911 Signaling on the Illinois Traction System   1.5 MB
Carlisle Jct., PA 1
1963 News briefs. 1963-12   429.2 KB
Carman Jct., Manitoba 1
1963 News briefs. 1963-05   720.2 KB
Carmen, FL 1
1962 News briefs. 1962-09   829.8 KB
Carol Lake 1
1962 1962 outlook   3.0 MB
Carolina & Western Carolina 1
1947 Territories Involved in the ICC Signaling Order   388.2 KB
Carpenter Street, Chicago, IL 3
1911 Interlocking on the North Western Terminal   7.6 MB
1925 Maintenance on C&NW Terminals   12.5 MB
1911 Signaling and Interlocking on the North Western Terminal in Chicago   1.1 MB
Carrcroft, DE 1
1961 Railroad Will Pay For CTC Out Of Accrued Savings   842.9 KB
carrier code 1
1965 Merging divisions require changing circuits   339.6 KB
carrier communication 5
1941 Carrier Communication Equipment Installed on the Santa Fe   4.7 MB
1960 Long-distance hot box detection   861.0 KB
1960 News briefs. 1960-01   1.1 MB
1959 Now: Instant hotbox location   829.3 KB
1958 RS&C 50th anniversary: Railroad communications ... from Morse to microwave   3.3 MB
carrier control 8
1949 625 Miles of CTC in one Stretch   7.9 MB
1951 Burlington Simplifies CTC for Light-Traffic Single Track   1.7 MB
1947 Frisco Moves CTC to One Office   481.1 KB
1950 Increasing Use of Carrier   1.3 MB
1955 Santa Fe installs CTC on single track   610.2 KB
1951 Signal Modernization Program on the RF&P   1.0 MB
1958 Subway consolidates interlockings   2.2 MB
1955 What CTC did for the Dixie Line   889.8 KB
carrier control system 1
1962 Centralization – Dispatch Circuits Are Changing   1.3 MB
carrior control 1
1960 News briefs. 1960-06   1.2 MB
Carroll, IA 3
1958 Crossing protection program saves 59%   553.4 KB
1960 Crossings are safer after 10 years   454.4 KB
1951 Special Protection Problems Solved With Gates and Flashers   1.5 MB
Carrollton Jct., LA 1
1954 New Orleans Passenger Terminal   4.7 MB
Carson, OH 1
1960 News briefs. 1960-09   756.9 KB
Carthage Jct., IL 1
1956 Burlington Has Modified CTC for Medium Traffic Single-Track   7.2 MB
Cascade Tunnel, WA 1
1963 GN Radio Works in Tunnel   1.1 MB
Casey, IL 1
1940 Pennsylvania Installs Centralized Traffic Control On 69 Miles of Line   13.1 MB
Castle Rock, WA 1
1966 News briefs. 1966-01   1.4 MB
Castleberry, AL 1
1965 News briefs. 1965-05   1.4 MB
Catamount, New Brunswick 1
1944 CTC On 185 Miles on Canadian National   12.3 MB
Cathay, ND 1
1964 News briefs. 1964-08   811.5 KB
cathode ray tubes 1
1964 Train Describers: A step toward ATI   2.1 MB
Cayuga, IN 1
1962 News briefs. 1962-06   989.1 KB
CD code-following relays 1
1940 Plug Couplers for Relays and Signals   1.3 MB
Cedar Falls, IA 1
1933 Automatic Interlocking in Train Control Territory   2.3 MB
Cedar Hill, CT 2
1948 Car Numbers “Grabbed” by Voice Recorder   783.1 KB
1915 Extension of New Haven signals   684.8 KB
Cedar Point, KS 1
1922 Signal Construction on the Santa Fe   797.6 KB
Center Hill, FL 1
1963 News briefs. 1963-11   1.4 MB
center sidings 1
1956 Remote Control Converted to CTC   6.6 MB
Central Jct., GA 2
1964 News briefs. 1964-10   768.6 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
Central New England 1
1926 The Direction of Train Movements by Signal Indication Without Written Train Orders   829.5 KB
Central of Georgia 19
1946 Automatic Block With Spring Switches on the Central of Georgia   5.3 MB
1933 Automatic Operation   963.8 KB
1945 Collision Entering CTC Line Due to Inadequate Signal   557.7 KB
1928 Continued Activity and Development in Signaling   1.1 MB
1932 CTC Studies   977.5 KB
1950 Differentiation Between Signals   955.8 KB
1937 False Clear Failures   2.0 MB
1950 Grade Signal Controls   2.1 MB
1960 News briefs. 1960-03   1.9 MB
1960 News briefs. 1960-04   896.6 KB
1961 News briefs. 1961-11   1.3 MB
1964 News briefs. 1964-06   812.0 KB
1965 News briefs. 1965-10   1.1 MB
1960 Short track circuit causes accident   436.0 KB
1959 Signaling moderate during '58   528.6 KB
1927 Signals Eliminate Written Train Orders   512.8 KB
1950 Spring Switch Signaling   2.5 MB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
1927 Train Operation Without Written Train Orders   3.3 MB
Central of New Jersey 17
1951 A History of Flashing-Light Crossing Signals- What They Are and Why   570.5 KB
1928 Arrangement of Color Light Units   816.2 KB
1931 Centralized Traffic Control Postpones Four-Tracking on Central of New Jersey   3.0 MB
1947 Choice of Interlocking Control Machines   266.5 KB
1927 CNJ Completes Interlocking to Safeguard Newark Bay Bridge   4.4 MB
1937 Cut-Out Control for Crossing Signals   3.0 MB
1937 J. C. Mock Retires   1.4 MB
1915 Jersey City Terminal Interlocking   1.1 MB
1931 Light-Out Protection   1.0 MB
1964 News briefs. 1964-12   981.5 KB
1941 Non-Stop Permissive Signals   2.8 MB
1937 Phantom Indications of Dwarfs   1.3 MB
1921 Progress of Railroad Signaling in America   731.8 KB
1921 Proposed Modification of Stop-and-Proceed Rule   1.4 MB
1960 Signal construction steady in 1959   385.2 KB
1926 Train Control Progress in 1925   3.1 MB
1928 What Is to Be Gained by Train Stop or Train Control?   463.8 KB
Central Station, Chicago, IL 1
1943 Electric Interlocking Installed On IC   12.8 MB
Central Vermont 3
1963 News briefs. 1963-10   497.4 KB
1957 Two interlockings save time and money   547.8 KB
1915 Victoria Jubilee Bridge Protection   570.0 KB
Centralia, IL 2
1956 Centralia Has Protection of All Crossings   6.7 MB
1960 Crossings are safer after 10 years   454.4 KB
centralied traffic control 1
1965 News briefs. 1965-09   381.7 KB
centralized dispatching 1
1964 What CTC Can Do For You   417.8 KB
centralized traffic contol 1
1951 Simple Interlocking Saves Many Train Stops   370.2 KB
centralized traffic control 375
1960 Fourteen RRs adopt new operating code   945.4 KB
1947 107 Miles of CTC on the N&W   2.3 MB
1962 1962 outlook   3.0 MB
1949 40-Hour Week Means More Signaling   1.1 MB
1949 625 Miles of CTC in one Stretch   7.9 MB
1940 A Change in the Requisites, Definitions and Regulations   1.2 MB
1931 A Definition for Centralized Traffic Control   1.3 MB
1940 A Review of 1939 and a Glance Into 1940   1.6 MB
1941 A Review of 1940 and Prospects for the Future   1.3 MB
1943 A Review of 1942   2.9 MB
1959 AFO circuits protect crossing   554.0 KB
1949 An Unusual Automatic Plant   4.5 MB
1947 Annual Review and Outlook   425.1 KB
1937 APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
1950 Approach Distances and Times   5.5 MB
1943 Approach or Time Locking   897.5 KB
1941 Automatic Block and Centralized Traffic Control on the Chesapeake & Ohio   4.3 MB
1962 Automatic Dispatching   2.1 MB
1933 Automatic Dwarfs?   717.9 KB
1941 Automatic Signaling and Tunnel Protection On the Denver & Salt Lake   6.7 MB
1959 B&M takes up track and installs traffic control, gates and flashers   745.0 KB
1957 BAR takes up second track and installs CTC   706.6 KB
1957 Bessemer takes up second track and installs Centralized Traffic Control   700.5 KB
1936 Boston & Maine Flooded Signaling Rehabilitated   8.3 MB
1951 Both Tracks Both Ways on Norfolk & Western   623.5 KB
1955 Both ways on both tracks with CTC   765.0 KB
1961 Brazilian Automated CTC Will Make Meets   1.2 MB
1947 Burlington Concentrates CTC Control at Division Headquarters   840.8 KB
1956 Burlington Has Compact Control Machine for Consolidation of 14 Interlockings   11.3 MB
1956 Burlington Has Modified CTC for Medium Traffic Single-Track   7.2 MB
1959 Burlington installs modified CTC   1.0 MB
1951 Burlington Simplifies CTC for Light-Traffic Single Track   1.7 MB
1955 C&O Consolidates Interlockings   3.2 MB
1958 C&O Has Good Ideas in CTC   2.5 MB
1936 C&O Remote Control   12.8 MB
1951 Canadian National Installs Centralized Traffic Control On a 117-Mile Sub-Division   501.4 KB
1944 Canadian Pacific Installs Centralized Traffic Control   4.4 MB
1958 Carrier sends hot box indications to dispatchers' office   810.6 KB
1946 Catch Up With Progress   450.6 KB
1958 Central opens Young Yard   2.5 MB
1962 Centralization – Dispatch Circuits Are Changing   1.3 MB
1932 Centralized Traffic Control   3.1 MB
1933 Centralized Traffic Control and Remote Control   575.8 KB
1930 Centralized Traffic Control Indications   1.1 MB
1943 Centralized Traffic Control Installed on 39 Miles of the Burlington   6.1 MB
1943 Centralized Traffic Control Installed On 64.6 Miles of the Seaboard   7.1 MB
1941 Centralized Traffic Control Installed on the Missouri Pacific   3.7 MB
1935 Centralized Traffic Control Installed on the Pittsburgh & Lake Erie   12.9 MB
1943 Centralized Traffic Control Installed on the Virginian   7.0 MB
1935 Centralized Traffic Control on the Chesapeake & Ohio   6.2 MB
1936 Centralized Traffic Control on the Chesapeake & Ohio   4.3 MB
1941 Centralized Traffic Control On the Chesapeake & Ohio   7.1 MB
1942 Centralized Traffic Control on the Erie   464.3 KB
1943 Centralized Traffic Control on the Milwaukee   2.8 MB
1931 Centralized Traffic Control on the Peoria & Pekin Union   6.7 MB
1935 Centralized Traffic Control on the Texas & Pacific   5.1 MB
1931 Centralized Traffic Control Postpones Four-Tracking on Central of New Jersey   3.0 MB
1940 Centralized Traffic Control Solves Problem on the Norfolk & Western   7.5 MB
1943 Centralized Traffic Control Speeds War Traffic on 80.5-Mile Section of the Southern Pacific   10.3 MB
1950 Centralized Train Dispatching   1.4 MB
1931 Centralized vs. Remote Control   1.2 MB
1943 Change-Over Circuits   739.0 KB
1949 Coast Line Replaces Signaling On Engine District   8.1 MB
1944 Coded Track Circuits for CTC and Cab Signaling   4.0 MB
1958 Compact control center   226.9 KB
1960 Computer analyzes train operation   1.2 MB
1962 Computer Simulation of CTC   220.3 KB
1950 Consolidated Control of Interlockings   1.3 MB
1947 Construction of Towers   213.3 KB
1944 Continuity of CTC Operation   943.3 KB
1943 Continuously Coded Local Line Wire Signal Control Circuits   4.5 MB
1962 Control Panels   243.4 KB
1958 CP consolidates interlockings   2.0 MB
1939 CTC and Automatic Signals on the Rock Island   6.6 MB
1955 CTC and cab signaling on Union Pacific   789.5 KB
1950 CTC Code Lines   1.1 MB
1959 CTC discussed at AIEE meeting   445.2 KB
1947 CTC Down by the Ohio   2.7 MB
1950 CTC Extended on the Rio Grande   4.4 MB
1947 CTC Extension on the Boston & Maine   792.3 KB
1958 CTC Handles 15 More Trains   2.2 MB
1947 CTC Has Long Sidings With Signals on the Santa Fe   2.1 MB
1954 CTC Improves Train Operation   3.3 MB
1937 CTC in Coaling Station Territory   6.6 MB
1954 CTC Increases Capacity of Double Track   4.2 MB
1949 CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
1950 CTC Indication Code   1.2 MB
1950 CTC Installed on 128 Miles of NKP   12.1 MB
1941 CTC Installed on Norfolk & Western   5.1 MB
1954 CTC into Service   2.5 MB
1953 CTC Keeps Trains Moving on Long Grades   6.3 MB
1948 CTC Keeps ‘em Rollin’ on C&EI   2.1 MB
1956 CTC Locking   2.2 MB
1952 CTC Machine Hangs High But Trains Run   704.9 KB
1954 CTC Moves Heavy Trains   4.1 MB
1955 CTC moves trains on grades   762.8 KB
1946 CTC on 107 Miles of Single Track on the Louisville & Nashville   5.2 MB
1943 CTC on 107 Miles of Single-Track on the Rio Grande   9.7 MB
1946 CTC on 128 Miles of Denver & Salt Lake   10.1 MB
1944 CTC On 185 Miles on Canadian National   12.3 MB
1939 CTC on Multiple Track   1.8 MB
1955 CTC on single and double track   406.8 KB
1951 CTC on Single Track Permits Removal of Second Main on 22.4 Miles on Boston & Maine   924.4 KB
1950 CTC on Sunset Route   3.1 MB
1943 CTC on the Bessemer & Lake Erie   8.7 MB
1937 CTC On the Denver & Rio Grande Western   8.0 MB
1940 CTC on the New York, Ontario & Western   8.2 MB
1950 CTC on the Reading   6.6 MB
1957 CTC on the SP has special devices   518.8 KB
1950 CTC on the Wabash   2.6 MB
1946 CTC Over Automatic Block   443.6 KB
1952 CTC Pays Its Way on B&O   733.2 KB
1955 CTC reduces operating expenses   431.8 KB
1953 CTC Replaces Manual Block On Single Track   9.0 MB
1938 CTC Replaces Staff System on the Milwaukee   2.3 MB
1958 CTC saves time and money for the Louisville & Nashville   446.6 KB
1955 CTC Saves Time for Freights On 135 Miles of Single Track   4.0 MB
1947 CTC Saves Train Time on the Pennsylvania   1.5 MB
1960 CTC signals clear automatically   1.1 MB
1956 CTC Signs   1.8 MB
1945 CTC Solves Operating Problems On the Pere Marquette   4.3 MB
1944 CTC Speeds Ore Traffic On the DM&IR   4.6 MB
1931 CTC Without Power-Operated Switches   1.8 MB
1937 Delaware River Bridge Signaling   13.9 MB
1936 Demands for Modern Signaling   12.1 MB
1947 Developments in Signaling   498.7 KB
1961 Digital Computer Simulates CTC Dispatcher   2.8 MB
1937 Direct-Wire or Coded Circuits   1.3 MB
1928 Diversified Application of the Centralized Control System   493.5 KB
1962 DM&IR Consolidates CTC Control Miles   384.7 KB
1951 Double to Single Track 60 Miles on the Erie   1.1 MB
1956 Double to Single Track With CTC   7.4 MB
1951 Double Track to Single With CTC   197.9 KB
1952 Double-Track CTC on Illinois Central   759.7 KB
1949 Either-Direction Running on Two Tracks on the Norfolk & Western   5.5 MB
1962 Electric Switch Lamp Lighting Helps Reduce Operating Expense   661.7 KB
1944 Electronics In Signaling   709.8 KB
1957 Elevation causes signal changes   893.2 KB
1944 Emergency Release for Switch Lock   1.3 MB
1937 Ends of Double Track Controlled by CTC   12.4 MB
1959 Erie consolidates interlockings   440.6 KB
1950 Frisco Moves CTC Machines Without Interrupting Traffic   2.9 MB
1947 Frisco Moves CTC to One Office   481.1 KB
1960 From the field   954.3 KB
1960 Gangs do signal maintenance   309.7 KB
1954 General Railway Signal Company Enters Fiftieth Year   1.6 MB
1957 GN CTC's 175 miles of mainline   635.9 KB
1953 Grand Trunk Installs CTC on 37 Miles of Busy Single Track   3.5 MB
1949 Hold-Out Signals in CTC   1.0 MB
1947 Hoosac Tunnel Interlocking and CTC   1.7 MB
1955 How CN increased track capacity   516.4 KB
1964 How computers may be applied   1.2 MB
1960 How CTC affects D&H M/W work: Cuts costs   372.6 KB
1957 How long sidings save train time   465.2 KB
1947 How Low Is a Dwarf?   438.7 KB
1958 How to adapt CTC to your traffic   748.3 KB
1956 How to Get Maximum Capacity of Single Track   10.5 MB
1957 How to make non-stop meet with CTC   576.9 KB
1961 IC Puts CTC Through Swamp   1.6 MB
1946 ICC 50-MPH Signal Hearing   6.9 MB
1944 ICC Annual Signaling Statistics   6.6 MB
1961 ICC Reports on Railroad Safety   189.7 KB
1950 Increasing Use of Carrier   1.3 MB
1943 Intermediate Signals in CTC   1.7 MB
1943 Junction and Crossing Included in Centralized Traffic Control On the Missouri Pacific   4.7 MB
1950 L&N Extends CTC on "EK"   10.4 MB
1944 L&N Installs CTC On an Engine District   9.0 MB
1960 Long-distance hot box detection   861.0 KB
1950 Longest Continuous Double-Track CTC Is on North Western   5.1 MB
1954 Loudspeakers and Interlocking Improve Yard Operation   4.7 MB
1956 Main Track Leaving Signal   2.2 MB
1947 Medals Awarded by Franklin Institute   236.3 KB
1965 Merging divisions require changing circuits   339.6 KB
1965 Midwest RRs fight the weather   914.4 KB
1960 Miniature track diagram   334.7 KB
1951 Modern Interlocking on the Norfolk & Western   710.2 KB
1949 Modern Signaling on a Division   6.6 MB
1950 Modern Signaling Systems On Western Pacific   16.1 MB
1957 More automation for signaling in 1957   1.2 MB
1951 More Signal Construction in 1950   1.0 MB
1958 MP consolidates CTC machines   797.2 KB
1964 MP interlocking uses solid-state control system   410.9 KB
1955 Much is new in signaling for 1955   826.7 KB
1944 N&W Installs CTC on Shenandoah Valley Line   10.2 MB
1944 Necessities or Frills in Centralized Traffic Control   1.0 MB
1950 New Rules, Standards and Instructions Issued by the Interstate Commerce Commission   7.9 MB
1946 New Signal Control Line Circuits in Centralized Traffic Control Territory on the Burlington   2.8 MB
1935 New Signaling on the Boston & Maine   9.9 MB
1956 New Three-Track Interchange Includes Interlocking and Talk-Backs   8.9 MB
1955 New York Central’s CTC – It’s Four Tracks to Two   4.1 MB
1943 New York, Chicago & St. Louis Installs Centralized Traffic Control on Busy Sections of Single Track   7.9 MB
1958 News briefs. 1958-01   1.8 MB
1959 News briefs. 1959-05   506.5 KB
1960 News briefs. 1960-01   1.1 MB
1960 News briefs. 1960-02   995.4 KB
1960 News briefs. 1960-04   896.6 KB
1960 News briefs. 1960-05   1.0 MB
1960 News briefs. 1960-06   1.2 MB
1960 News briefs. 1960-07   845.4 KB
1960 News briefs. 1960-08   603.8 KB
1960 News briefs. 1960-09   756.9 KB
1960 News briefs. 1960-10   1.8 MB
1960 News briefs. 1960-11   875.5 KB
1961 News briefs. 1961-01   761.9 KB
1961 News briefs. 1961-02   1.4 MB
1961 News briefs. 1961-03   1.0 MB
1961 News briefs. 1961-04   1.5 MB
1961 News briefs. 1961-05   1.1 MB
1961 News briefs. 1961-06   725.8 KB
1961 News briefs. 1961-07   648.9 KB
1961 News briefs. 1961-08   851.8 KB
1961 News briefs. 1961-09   886.8 KB
1961 News briefs. 1961-10   1.0 MB
1961 News briefs. 1961-11   1.3 MB
1961 News briefs. 1961-12   978.0 KB
1962 News briefs. 1962-01   986.8 KB
1962 News briefs. 1962-02   1.4 MB
1962 News briefs. 1962-03   1.1 MB
1962 News briefs. 1962-04   1.2 MB
1962 News briefs. 1962-05   826.8 KB
1962 News briefs. 1962-07   494.2 KB
1962 News briefs. 1962-09   829.8 KB
1962 News briefs. 1962-10   461.7 KB
1962 News briefs. 1962-11   468.1 KB
1963 News briefs. 1963-01   951.3 KB
1963 News briefs. 1963-02   1.3 MB
1963 News briefs. 1963-03   790.6 KB
1963 News briefs. 1963-04   889.2 KB
1963 News briefs. 1963-05   720.2 KB
1963 News briefs. 1963-06   961.3 KB
1963 News briefs. 1963-08   1.2 MB
1963 News briefs. 1963-10   497.4 KB
1963 News briefs. 1963-11   1.4 MB
1963 News briefs. 1963-12   429.2 KB
1964 News briefs. 1964-02   981.5 KB
1964 News briefs. 1964-04   1.3 MB
1964 News briefs. 1964-05   1.0 MB
1964 News briefs. 1964-07   833.0 KB
1964 News briefs. 1964-08   811.5 KB
1964 News briefs. 1964-09   879.4 KB
1964 News briefs. 1964-10   768.6 KB
1964 News briefs. 1964-11   797.3 KB
1965 News briefs. 1965-01   2.0 MB
1965 News briefs. 1965-02   1.9 MB
1965 News briefs. 1965-04   1.5 MB
1965 News briefs. 1965-05   1.4 MB
1965 News briefs. 1965-06   1.2 MB
1965 News briefs. 1965-07   788.2 KB
1965 News briefs. 1965-08   742.1 KB
1965 News briefs. 1965-10   1.1 MB
1965 News briefs. 1965-11   1.2 MB
1965 News briefs. 1965-12   609.3 KB
1966 News briefs. 1966-01   1.4 MB
1958 Nine layouts in one interlocking   1.7 MB
1943 Norfolk & Western Installs CTC on 14 Miles of Single Track   4.4 MB
1927 NYC First to Install Complete Train Dispatching System   8.0 MB
1950 NYC Installs Big NX Plant at Fostoria, Ohio   3.9 MB
1964 NYC Moves CTC Point of Control   1.2 MB
1935 Obsolescence in Signaling   3.4 MB
1955 One CTC Machine Replaces Three   451.9 KB
1958 One track does work of two   521.4 KB
1958 One track does work of two on Maine Central   442.6 KB
1959 P&LE installs multiple track CTC   1.1 MB
1951 P&WV Signals Entire Main Line   3.9 MB
1937 Pennsylvania CTC Installation   7.0 MB
1940 Pennsylvania Installs Centralized Traffic Control On 69 Miles of Line   13.1 MB
1944 Pennsylvania Installs CTC On 53 Miles of Busy Single Track   8.5 MB
1955 Pennsylvania installs wayside equipment for cab signaling   745.7 KB
1951 Power Switches and Spring Swiches in CTC on the Frisco   1.2 MB
1935 Power-Off Lights at CTC Machines   2.1 MB
1958 Product news: Compact control center   231.1 KB
1931 Protecting CTC Switches   2.9 MB
1938 Protection at Hand-Operated Switches in CTC Territory   1.6 MB
1941 Protection at Hand-Thrown Switches in CTC Territory   1.6 MB
1959 Pushbutton console for CTC   785.3 KB
1957 Pushbutton CTC Machine on NYC Is First of Its Kind   3.3 MB
1954 Quebec, North Shore & Labrador   7.8 MB
1944 Railroad Applications of Electronics   1.9 MB
1942 Railroad Signals Go to War   11.4 MB
1961 Railroad Will Pay For CTC Out Of Accrued Savings   842.9 KB
1960 Railroads fit automation   181.2 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1941 Railway Exhibit Presented to Museum of Science and Industry   636.5 KB
1956 Release of Locking   3.7 MB
1937 Remote Control By Code   7.0 MB
1956 Remote Control Converted to CTC   6.6 MB
1953 Remote Control Interlockings Improve Terminal Operation   551.4 KB
1936 Remote Control on the Pennsylvania   14.5 MB
1958 Remote control saves money   868.5 KB
1930 Report of Committee I – Economics of Signaling   2.5 MB
1931 Results of Centralized Control on NYC   703.8 KB
1932 Reverting to Single Track   646.7 KB
1965 Rhodesia has 1215 miles of CTC   949.2 KB
1944 Rio Grande has Longest CTC   9.2 MB
1948 Rock Island Adapts CTC to Medium-Traffic Single-Track Line   1.3 MB
1944 Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
1937 Route Control Interlocking – A New Signaling Development   2.9 MB
1958 RS&C 50th anniversary: Looking ahead   652.9 KB
1958 RS&C 50th anniversary: Railroad communications ... from Morse to microwave   3.3 MB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
1950 Rules, Standards and Instructions   1.5 MB
1963 S&C Role Is Basic To Bison Yard   3.0 MB
1959 Santa Fe CTCs double track line   2.2 MB
1944 Santa Fe Installs CTC on 115.6 Miles Los Angeles to San Diego   7.2 MB
1955 Santa Fe installs CTC on single track   610.2 KB
1961 Santa Fe Signals New Main Line   913.2 KB
1961 Should Sidings Have Circuits?   347.6 KB
1937 Should Train Order Signals Control Automatic Signals   1.2 MB
1960 Signal construction steady in 1959   385.2 KB
1957 Signal controls by track circuit only   575.8 KB
1951 Signal Modernization Program on the RF&P   1.0 MB
1949 Signaling Adapted to Traffic On the Rock Island   5.2 MB
1944 Signaling Construction Increased in 1943   8.8 MB
1960 Signaling enters automation   630.6 KB
1959 Signaling moderate during '58   528.6 KB
1949 Signaling Saves Time on Frisco   4.8 MB
1958 Signaling to cut expenses in '58   411.4 KB
1959 Signaling: 1960   225.2 KB
1943 Signals Ordered on the Kansas City Southern   1.4 MB
1941 Simplified Signaling   426.9 KB
1950 Single Instead of Double Track Alongside Yards   1.3 MB
1951 Single Track with CTC Replaces Double Track on Milwaukee   586.0 KB
1940 Single-Track Signaling   2.5 MB
1951 Single-Track With CTC Handles 40 Trains Daily   530.8 KB
1943 Some Benefits of the War   780.5 KB
1947 Southern Pacific Installs CTC   990.2 KB
1962 SP Has 500 Miles of Automatic CTC   363.6 KB
1958 Special combinations of single-track and two-track replace double track on the Southern   960.9 KB
1960 Special report- Questions on hotbox detectors   290.9 KB
1939 Speeding Up Train Operation With Signaling   4.5 MB
1944 St. Louis Southwestern Installs Centralized Traffic Control   6.9 MB
1944 St. Louis-San Francisco Installs Centralized Traffic Control   8.3 MB
1956 Switch Machines for CTC   2.0 MB
1956 Switch Machines for CTC   985.3 KB
1960 T&P moves CTC machine 78 miles   423.0 KB
1938 The Outlook for Signaling   1.3 MB
1955 The Reading has compact control machine for consolidated interlocking   511.5 KB
1929 The Year 1928 in Retrospect and the Outlook for 1929   1.5 MB
1962 Toronto Railway Conference – Automatic Train Operation   448.4 KB
1944 Track Circuits on Passing Tracks in CTC Territory   941.8 KB
1937 Track Layout for CTC   1.2 MB
1937 Track Occupancy Indications in CTC Territory   2.7 MB
1959 Traffic control center   301.2 KB
1951 Traffic Direction Indication   152.0 KB
1949 Train Indicator for Motor Car   1.0 MB
1950 Train Movements by Signal Indication On the Clinchfield Route   12.0 MB
1949 Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
1954 Train Operations When CTC Fails   2.0 MB
1956 Train Operations When CTC Fails   3.5 MB
1956 Train Operations When CTC Fails   2.4 MB
1940 Train Order Signals   4.2 MB
1961 Trainmen Read Hotbox Locator   1.1 MB
1939 Trains Directed by Signal Indication at San Jose, California   4.1 MB
1950 Two Single Tracks, Side By Side   1.4 MB
1943 Union Pacific Installs CTC on 175 Miles of Single Track   13.2 MB
1954 Unique Combinations of Single-Track and Two-Track Developed on the Southern   3.8 MB
1939 Unusual Signal Trouble   1.6 MB
1931 What Can Be Done Now?   736.8 KB
1964 What CTC Can Do For You   417.8 KB
1955 What CTC did for the Dixie Line   889.8 KB
1936 What Is the Capacity of a Single-Track Line?   2.0 MB
1965 What's the Answer? 1965-06   235.3 KB
1960 What's the answer? Absolute signals   477.6 KB
1958 What's the answer? Approach lighting   237.1 KB
1955 What's the Answer? CTC Into Service   409.5 KB
1958 What's the answer? CTC locking   269.2 KB
1959 What's the answer? Repeater signals   691.6 KB
1951 What's the Answer? Stop Signals in CTC   274.3 KB
1961 What’s the Answer? 1961-04   960.3 KB
1960 What’s the answer? Automatic OS   354.1 KB
1957 Where Two Tracks Do the Work of Four   3.2 MB
1954 Why Cotton Belt Installed CTC On 429 Miles of Single Track   4.0 MB
1957 Why Cotton Belt installed CTC on entire main line   914.0 KB
1957 Why not more Centralized Traffic Control?   344.2 KB
1936 Yard Entrance in Montreal Remotely Controlled   8.2 MB
Centre, Reading, PA 1
1955 The Reading has compact control machine for consolidated interlocking   511.5 KB
centrifugal relays 1
1940 Plug Couplers for Relays and Signals   1.3 MB
cetnralized traffic control 1
1959 Fewer wayside observers makes automatic hazard detection necessary   1.1 MB
Chaffee, MO 1
1965 Merging divisions require changing circuits   339.6 KB
Chalender, AZ 1
1961 News briefs. 1961-06   725.8 KB
Champaign, IL 10
1921 Educational Meetings On the Illinois Central   616.5 KB
1947 False Clear Signal   1.0 MB
1925 Illinois Central ATS contract: News of the Month (July 1925)   700.0 KB
1926 Illinois Central Continuous Train Stop Approved Without Major Exceptions   1.1 MB
1963 News briefs. 1963-02   1.3 MB
1923 News of the Month (November 1923)   1.8 MB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1938 Train Control Petition Denied by ICC   905.5 KB
1926 Train Control Progress in 1925   3.1 MB
1926 Train Stop Without Permissive Wayside Signals Used on IC   3.5 MB
Chapleau, Ontario 1
1944 Canadian Pacific Installs Automatic Block Signaling   6.8 MB
character generator 1
1964 Train Describers: A step toward ATI   2.1 MB
Charleston, SC 1
1963 News briefs. 1963-01   951.3 KB
Charleston, WV 1
1964 Individual radios carried by crewmen can aid yard work   549.7 KB
Charlestown, MA 1
1921 New Interlocking on the Boston Elevated   3.3 MB
Charlestown, OH 1
1947 Remote Control on Baltimore & Ohio   595.8 KB
Charlottesburg, VA 1
1919 Electric Interlocking at Charlottesville,VA   530.2 KB
Charlottesville, VA 3
1923 C&O Installs Signaling With Train Control   5.8 MB
1928 C&O Signaling and Train Control Facilitate Operation   4.1 MB
1965 News briefs. 1965-02   1.9 MB
Chattanooga Terminal 1
1949 New Interlocking at Chattanooga Terminal   5.2 MB
Chattanooga, TN 5
1947 Construction of Towers   213.3 KB
1951 Double Track to Single With CTC   197.9 KB
1955 Much is new in signaling for 1955   826.7 KB
1949 New Interlocking at Chattanooga Terminal   5.2 MB
1955 What CTC did for the Dixie Line   889.8 KB
Chebanse, IL 1
1923 News of the Month (July 1923)   1.9 MB
Chehalis Jct., WA 1
1964 News briefs. 1964-07   833.0 KB
Chelsea, MI 1
1965 News briefs. 1965-06   1.2 MB
Chelyan, WV 1
1960 News briefs. 1960-02   995.4 KB
Chemin de fer de l'Est 1
1931 French Railways Adopt Color-Light Signals   1.3 MB
Chemin de fer du Nord 1
1924 Electric Interlockings On the French Northern   4.4 MB
Cherry Hill, VA 1
1955 How to run reverse temporarily   197.6 KB
Cherry Street, Toronto, Ontario 1
1931 Interlocking System Installed at Toronto Union Station   4.6 MB
Chesapeake & Ohio 110
1921 A New Idea in Traffic Locking On the C&O   1.7 MB
1929 Adjustment of Clockwork Time Releases   1.4 MB
1935 Aerial Cable Versus Open Line   3.9 MB
1956 Air Line Leak   1.1 MB
1941 Automatic Block and Centralized Traffic Control on the Chesapeake & Ohio   4.3 MB
1932 Automatic Interlockers   1.0 MB
1936 Back Locks on Approach Signals   1.4 MB
1937 Broken Rails   1.1 MB
1934 C&O Combines Two Interlockings in Centralized Control   2.6 MB
1927 C&O Completes Three-Track Color-Light, Either-Direction Signaling   3.9 MB
1955 C&O Consolidates Interlockings   3.2 MB
1958 C&O Has Good Ideas in CTC   2.5 MB
1930 C&O Installs New Interlocking and Either-Direction Signaling   5.0 MB
1923 C&O Installs Signaling With Train Control   5.8 MB
1936 C&O Remote Control   12.8 MB
1928 C&O Signaling and Train Control Facilitate Operation   4.1 MB
1935 Centralized Traffic Control on the Chesapeake & Ohio   6.2 MB
1936 Centralized Traffic Control on the Chesapeake & Ohio   4.3 MB
1941 Centralized Traffic Control On the Chesapeake & Ohio   7.1 MB
1938 Changing Relays   1.7 MB
1928 Color Light Train Order Signals Are Effective   2.9 MB
1955 Crossing protection for 16 streets   371.1 KB
1949 CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
1953 CTC Replaces Manual Block On Single Track   9.0 MB
1955 CTC Saves Time for Freights On 135 Miles of Single Track   4.0 MB
1951 Cut-Out Controls for Crossing Gates   488.0 KB
1937 Direct-Wire or Coded Circuits   1.3 MB
1926 Directing Trains By Signals   1.9 MB
1926 Economics of Single Track Signals   2.0 MB
1919 Electric Interlocking at Charlottesville,VA   530.2 KB
1962 Electric Switch Lamp Lighting Helps Reduce Operating Expense   661.7 KB
1928 Emergency Release Circuits   2.4 MB
1935 FPL Adjustment on Spring Switches   1.3 MB
1937 Gages for Mechanical Locking   2.4 MB
1949 Hold-Out Signals in CTC   1.0 MB
1958 How to save time when trains are entering yards   513.6 KB
1962 Identifying Emblems   326.9 KB
1964 Individual radios carried by crewmen can aid yard work   549.7 KB
1937 Inspection of Signal Facilities   2.1 MB
1950 Instrument Case Platforms   3.7 MB
1955 Interlocking Expedites Terminal Moves   1.6 MB
1950 Interlocking Plant Horns   1.2 MB
1958 Interlocking saves time and money for the Belt Railway of Chicago   2.0 MB
1937 Location of Signals at Spring Switches   1.3 MB
1954 Loudspeakers and Interlocking Improve Yard Operation   4.7 MB
1949 Main Line Crossovers   2.4 MB
1927 Marking Signals When Out of Service   1.1 MB
1951 Modern Interlocking on the Norfolk & Western   710.2 KB
1949 Modern Signaling on a Division   6.6 MB
1957 More automation for signaling in 1957   1.2 MB
1927 Multiplicity of Circuits for Operating Call-on Arms   1.5 MB
1937 New Automatics on the C&O   5.0 MB
1960 News briefs. 1960-02   995.4 KB
1960 News briefs. 1960-05   1.0 MB
1960 News briefs. 1960-06   1.2 MB
1960 News briefs. 1960-07   845.4 KB
1961 News briefs. 1961-07   648.9 KB
1961 News briefs. 1961-10   1.0 MB
1962 News briefs. 1962-06   989.1 KB
1962 News briefs. 1962-09   829.8 KB
1962 News briefs. 1962-11   468.1 KB
1963 News briefs. 1963-03   790.6 KB
1963 News briefs. 1963-05   720.2 KB
1964 News briefs. 1964-07   833.0 KB
1964 News briefs. 1964-10   768.6 KB
1965 News briefs. 1965-01   2.0 MB
1965 News briefs. 1965-02   1.9 MB
1965 News briefs. 1965-08   742.1 KB
1965 News briefs. 1965-10   1.1 MB
1965 News briefs. 1965-12   609.3 KB
1950 NYC Installs Big NX Plant at Fostoria, Ohio   3.9 MB
1937 Ohio Flood Damages Signaling   9.7 MB
1957 One Machine Controls Two Plants   2.2 MB
1960 Planning the C&O's CLIC – The economics of data communications   1.1 MB
1925 Position Light Take Siding Signal in Combination With Semaphore Installed on C&O   675.6 KB
1933 Preventing Lamp Failures   1.2 MB
1921 Proposed Modification of Stop-and-Proceed Rule   1.4 MB
1959 Pushbutton console for CTC   785.3 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1933 Reducing Unnecessary Train Stops   2.5 MB
1956 Remote Control Converted to CTC   6.6 MB
1950 Remote Control of Center Sidings On Busy Double-Track Line   3.6 MB
1937 Replacement and Life of Lamps   3.0 MB
1930 Report of Committee I – Economics of Signaling   2.5 MB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
1927 Several Effective Trap Circuit Schemes   1.4 MB
1927 Should Motor Car Operators Watch Signals More Carefully   1.2 MB
1960 Signal construction steady in 1959   385.2 KB
1956 Signal Lamp Test   950.0 KB
1935 Signaling at Spring Switches   2.6 MB
1959 Signaling moderate during '58   528.6 KB
1958 Signaling to cut expenses in '58   411.4 KB
1940 Single-Track Signaling   2.5 MB
1961 Survey Tells How Railroads Use Hotbox Detectors   1.8 MB
1956 Switch Machines for CTC   985.3 KB
1936 Testing New Interlocking   3.5 MB
1926 The Direction of Train Movements by Signal Indication Without Written Train Orders   829.5 KB
1932 The Erie Installs Either-Direction Signaling   1.6 MB
1925 The Train Control Situation   853.0 KB
1927 Train Operation Without Written Train Orders   3.3 MB
1954 Train Operations When CTC Fails   2.0 MB
1926 Training of New Levermen   654.5 KB
1955 Unusual control for crossing protection   722.1 KB
1927 Various Circuits for Directional Control of Single Track Signals   2.6 MB
1936 What Is the Capacity of a Single-Track Line?   2.0 MB
1929 What Kind of Control for Take-Siding Signals?   512.5 KB
1955 What's the Answer? CTC Into Service   409.5 KB
1960 What's the answer? Route signaling   205.2 KB
1929 Where Should Grade Signals Be Installed?   1.2 MB
1955 Yard radio pays its way on the C&O   799.6 KB
Chester, IL 1
1965 News briefs. 1965-10   1.1 MB
Chester, MT 3
1961 News briefs. 1961-06   725.8 KB
1962 News briefs. 1962-01   986.8 KB
1963 News briefs. 1963-06   961.3 KB
Chester, VA 1
1932 An Early Automatic Interlocking   411.4 KB
Chestnut Hill, PA 3
1934 New Signaling on the Reading   631.4 KB
1916 Service Record of Position-Light Signals   580.8 KB
1937 Spring Switch at Branch Line Terminus   5.0 MB
Cheviot, OH 2
1953 CTC Replaces Manual Block On Single Track   9.0 MB
1963 News briefs. 1963-05   720.2 KB
Cheyenne, WY 4
1955 CTC and cab signaling on Union Pacific   789.5 KB
1947 ICC Holds Signal Hearing   507.5 KB
1951 More Signal Construction in 1950   1.0 MB
1935 Safety of High Speed Trains   5.2 MB
Chicag, IL 1
1964 News briefs. 1964-02   981.5 KB
Chicago & Alton 10
1914 All Electric Interlocking at Joliet   1.5 MB
1929 Automatic Interlocker Saves Over 8,000 Train Stops Annually   1.7 MB
1929 C. & A. Modernizes Signaling Facilities   2.2 MB
1923 Chicago & Alton Installation of Train Control   1.4 MB
1915 Emergency Suburban Traffic   252.9 KB
1918 New Mechanical Plant on Chicago & Alton   702.8 KB
1917 New Plant in Chicago Terminal District   591.7 KB
1929 The Chicago & Alton Installs Mechanical Plant   1.3 MB
1925 The Train Control Situation   853.0 KB
1926 Train Control Progress in 1925   3.1 MB
Chicago & Eastern Illinois 31
1944 A Collision Despite Automatic Signals   2.7 MB
1911 A Summary of Signaling Practice   3.6 MB
1934 Accident at Crossing   491.3 KB
1947 All-Relay Plant on the C&EI at Danville, Ill   915.6 KB
1928 Automatic Signals Within Yard Limits   1.0 MB
1929 C&EI Derailment and Collision at Chicago   755.9 KB
1928 C&EI Installs Automatic Interlocker at Main Line Crossing   3.7 MB
1948 CTC Keeps ‘em Rollin’ on C&EI   2.1 MB
1952 CTC Machine Hangs High But Trains Run   704.9 KB
1925 Division Train Control Installation on C&EI Approved by ICC   2.9 MB
1908 Electro-Pneumatic Interlocking Plant On the Chicago & Western Indiana Railroad at 47th Street, Chicago   3.9 MB
1928 Elimination of Derails   796.4 KB
1934 Lamp Ratings for Flashing Lights   695.8 KB
1960 News briefs. 1960-02   995.4 KB
1960 News briefs. 1960-06   1.2 MB
1960 News briefs. 1960-10   1.8 MB
1960 News briefs. 1960-11   875.5 KB
1961 News briefs. 1961-03   1.0 MB
1962 News briefs. 1962-06   989.1 KB
1962 News briefs. 1962-11   468.1 KB
1965 News briefs. 1965-06   1.2 MB
1937 Ohio Flood Damages Signaling   9.7 MB
1937 Railroad Grade Crossing Gates   2.2 MB
1918 Record Snowstorms Paralyze Transportation   424.7 KB
1928 Signal and Train Control Hearing Ends   2.0 MB
1951 Simple Interlocking Saves Many Train Stops   370.2 KB
1927 Small Bench Anvil Made from Scrap Rail   378.0 KB
1961 Survey Tells How Railroads Use Hotbox Detectors   1.8 MB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
1925 The Train Control Situation   853.0 KB
1926 Train Control Progress in 1925   3.1 MB
Chicago & Illinois Midland 7
1931 Chicago & Illinois Midland Installs Electric Interlocking   2.5 MB
1937 Illumination as a Type of Crossing Protection   3.0 MB
1949 Insulation of Rails   874.8 KB
1918 New Mechanical Plant on Chicago & Alton   702.8 KB
1963 News briefs. 1963-12   429.2 KB
1950 OSing Device   1.4 MB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
Chicago & North Western 134
1919 A Peculiar Accident   251.7 KB
1920 A Special Circuit Saves Money   394.1 KB
1911 A Summary of Signaling Practice   3.6 MB
1916 AC Signaling for Chicago Terminals   585.7 KB
1929 Adjustment of Clockwork Time Releases   1.4 MB
1947 Annual Review and Outlook   425.1 KB
1937 APB Circuits   1.1 MB
1925 Approach Locking Circuit That Is Dependent Upon Signal Position   648.1 KB
1928 Are Call-On Signals Safe?   1.2 MB
1935 Auto Stop Installed on C&NW   7.2 MB
1928 Automatic Interlockers Are Profitable Investments   3.3 MB
1932 Automatic Interlocking Replaces Mechanical Plant   1.7 MB
1928 Automatic Train Control on the Chicago & North Western   5.7 MB
1935 Avoiding Light-Out Signal Failures   2.2 MB
1938 B&OCT Installs Route Interlocking   8.9 MB
1929 C&NW Employs Centralized Control To Speed Up Trains   3.0 MB
1959 C&NW has system-wide car reporting   702.6 KB
1926 C&NW Replaces Highway Crossing Gates With Wig-Wags   2.0 MB
1923 C&NW Tests GRS Train Control   3.7 MB
1965 C&NW’s ATC uses 100 cps AC   901.0 KB
1930 Car Retarders Installed by C&NW at Proviso Yard, near Chicago   3.7 MB
1928 Changes on the C&NW   978.4 KB
1961 Check Switch Heaters Now   297.3 KB
1959 Chicago & North Western Has Unique Hump Cab Signal Controls   2.2 MB
1932 Collision in Signal Territory   513.9 KB
1925 Color-Light Signals on C&NW   6.9 MB
1915 Compensation of Pipe Lines   319.6 KB
1933 Consolidated Interlockings   1.8 MB
1928 Continued Activity and Development in Signaling   1.1 MB
1965 Crossing protection gets new look   490.1 KB
1958 Crossing protection program saves 59%   553.4 KB
1935 Crossing Signals on the C&NW at Oshkosh, Wis   3.4 MB
1960 Crossings are safer after 10 years   454.4 KB
1950 CTC Code Lines   1.1 MB
1955 CTC on single and double track   406.8 KB
1936 Demands for Modern Signaling   12.1 MB
1928 Early APB Signaling   408.5 KB
1934 Economy in Operation of Track Circuits   554.1 KB
1922 Effect of Overlaps on Track Capacity With Three Position Signaling   924.8 KB
1926 Electric Plant Replaces Three Mechanical Interlockings   3.0 MB
1915 Emergency Suburban Traffic   252.9 KB
1925 Enginemen Try to Force C&NW to Discontinue Left-Hand Operation- News of the Month (June 1925)   751.2 KB
1929 Further Comments on Detector Locking Releases   511.5 KB
1953 Gates at Three Crossings   5.3 MB
1943 Gates at Three Crossings on C&NW   3.4 MB
1956 Gates Installed at Five Crossings … Barriers at Four.pdf   5.0 MB
1911 General News (August 1911)   557.3 KB
1922 Highway Crossing Protection in Theory and Practice   5.5 MB
1945 ICC Calls For Switch Locks   1.5 MB
1947 ICC Holds Signal Hearing   507.5 KB
1947 ICC Signal Hearings   179.7 KB
1936 Importance of Warning Whistle   6.8 MB
1955 Improved protection at seven crossings   309.9 KB
1935 Inspecting Switch Circuit Controllers   1.7 MB
1935 Installation of Bond Wires   1.2 MB
1911 Interlocking on the North Western Terminal   7.6 MB
1934 Lamp Ratings for Flashing Lights   695.8 KB
1930 Light-out Protection   1.1 MB
1936 Lights Interfere With View of Signals   2.3 MB
1936 Location of Home Signals at Automatic Interlockings   3.0 MB
1950 Longest Continuous Double-Track CTC Is on North Western   5.1 MB
1924 Low-Voltage Interlocking on C&NW   1.6 MB
1910 Main Street Tower on the Chicago & North Western at Evanston, IL   666.9 KB
1918 Maintaining an Interlocking Plant at High Tide   241.8 KB
1925 Maintenance on C&NW Terminals   12.5 MB
1965 Midwest RRs fight the weather   914.4 KB
1938 Milwaukee Rehabilitates Large Plant   8.0 MB
1934 Moving Interlocking Machines   1.1 MB
1955 Much is new in signaling for 1955   826.7 KB
1913 New Block Signaling on the North-Western   1.8 MB
1917 New C&NW Bascule Bridge Interlocking   761.1 KB
1917 New Interlocking Plant in Milwaukee   1.2 MB
1935 New Signaling on the Route of the C&NW "400"   9.6 MB
1958 News briefs. 1958-01   1.8 MB
1961 News briefs. 1961-07   648.9 KB
1961 News briefs. 1961-10   1.0 MB
1963 News briefs. 1963-10   497.4 KB
1963 News briefs. 1963-11   1.4 MB
1963 News briefs. 1963-12   429.2 KB
1964 News briefs. 1964-06   812.0 KB
1964 News briefs. 1964-10   768.6 KB
1965 News briefs. 1965-08   742.1 KB
1965 News briefs. 1965-10   1.1 MB
1941 Non-Stop Permissive Signals   2.8 MB
1936 North Western Installs Automatic Gates   15.9 MB
1959 North Western installs automatic gates at nine crossings   699.9 KB
1945 North Western Tests Train Radio   2.1 MB
1937 Personal: C&NW   1.3 MB
1925 Preliminary Report on C&NW Train Control   929.6 KB
1918 Preparation For Winter On a Busy Terminal   273.8 KB
1921 Proposed Modification of Stop-and-Proceed Rule   1.4 MB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1918 Record Snowstorms Paralyze Transportation   424.7 KB
1931 Remotely-Controlled Interlocking Solves Problem on C&NW   1.9 MB
1930 Report of Committee I – Economics of Signaling   2.5 MB
1929 Report on C&NW Side Collision at Chicago   569.4 KB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
1935 Safety of High Speed Trains   5.2 MB
1929 Secure New Ordinances for Changes in Crossing Protection   691.4 KB
1956 Signal Lamp Test   1.4 MB
1933 Signal or Rule?   1.1 MB
1911 Signaling and Interlocking on the North Western Terminal in Chicago   1.1 MB
1935 Signaling for Higher Train Speeds   3.0 MB
1958 Signaling to cut expenses in '58   411.4 KB
1932 Smashboard Mechanisms   1.7 MB
1951 Special Protection Problems Solved With Gates and Flashers   1.5 MB
1936 Speed at Automatic Plants   4.9 MB
1913 Speed Restrictions on the Chicago & North Western   722.9 KB
1927 Spring Switches Used Extensively on Chicago & North Western   3.4 MB
1953 Stanley E. Noble Retires   703.8 KB
1935 Stopping Distance and Signal Spacing   1.8 MB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
1920 Testing Insulated Joints   601.5 KB
1935 The "400" to Run on Six and One Half Hour Schedule   942.0 KB
1911 The Newest Terminal Interlocking   611.9 KB
1919 The Night Signal Indication   335.6 KB
1953 The North Western Installs Automatic Train-Stop System   3.5 MB
1935 The Railways' Answer to the Demand for Speed   2.8 MB
1925 The Train Control Situation   853.0 KB
1917 The Use of Photography in Signaling   432.5 KB
1924 Three Train Control Contracts Let   1.9 MB
1931 Three-Track Signaling on 13.5 Miles of the C&NW   5.4 MB
1935 Traffic Type Signals for Protection of Highway-Railroad Crossings   2.5 MB
1922 Train Control on the C&NW   824.8 KB
1926 Train Control Progress in 1925   3.1 MB
1923 Train-Order Signals at Interlockers   3.6 MB
1950 Two Single Tracks, Side By Side   1.4 MB
1927 Unique Highway Crossing Signals Solve Traffic Problem   1.4 MB
1934 Use of Dwarf Calling-On Signals   1.0 MB
1935 Use of Marker Lamps   1.0 MB
1927 Various Circuits for Directional Control of Single Track Signals   2.6 MB
1928 What Is the Cost of a Train Stop?   463.2 KB
1931 Why Not Eliminate Train Stops at Permissive Wayside Signals   763.1 KB
1936 Wilmer W. Salmon, President of General Railway Signal Company, Dies   2.8 MB
Chicago & Western Indiana 17
1916 AC Signaling for Chicago Terminals   585.7 KB
1941 Belt Railway of Chicago Installs Interlocking   12.3 MB
1953 Chicago & Western Indiana Installs Easily Manipulated Interlocking   8.1 MB
1947 Construction of Towers   213.3 KB
1908 Electro-Pneumatic Interlocking Plant On the Chicago & Western Indiana Railroad at 47th Street, Chicago   3.9 MB
1915 Emergency Suburban Traffic   252.9 KB
1943 Fire-Proof Construction   11.6 MB
1910 Mechanical Interlocking at State Line   1.0 MB
1941 Modern Entrance-Exit Interlocking Replaces Mechanical Plant On Indiana Harbor Belt   6.9 MB
1924 New Interlocking Construction Ideas   3.4 MB
1965 News briefs. 1965-04   1.5 MB
1956 Plastic Track Model Is Big Picture for Levermen   1.4 MB
1910 Reconstruction of Burnside Interlocking   863.7 KB
1917 Rock Island Signaling on the Chicago Terminal   1.2 MB
1926 Semaphore or Light Signals?   1.4 MB
1941 Two New Interlockings on the C&WI   5.1 MB
1935 Western Indiana Installs All-Relay Interlocking   11.4 MB
Chicago Aurora & Elgin 1
1959 North Western installs automatic gates at nine crossings   699.9 KB
Chicago Great Western 19
1911 A Summary of Signaling Practice   3.6 MB
1928 Automatic Interlocker on Chicago Great Western Effects Saving   2.4 MB
1932 Automatic Interlockers   1.0 MB
1932 Automatic Interlocking Replaces Mechanical Plant   1.7 MB
1911 Automatic Signals on the Chicago Great Western   7.4 MB
1950 Centralized Train Dispatching   1.4 MB
1927 Checking Up on Signal Observance   774.5 KB
1931 Chicago Great Western Saves $7,000 Annually by Remote Control of Tunnel Interlockings   3.7 MB
1935 Great Western Constructs Automatic Interlocking   6.8 MB
1965 Midwest RRs fight the weather   914.4 KB
1956 New Three-Track Interchange Includes Interlocking and Talk-Backs   8.9 MB
1962 News briefs. 1962-11   468.1 KB
1921 Proposed Modification of Stop-and-Proceed Rule   1.4 MB
1918 Record Snowstorms Paralyze Transportation   424.7 KB
1935 Signaling at Spring Switches   2.6 MB
1936 Signals Installed at 26 Crossings in Dubuque, IA   13.8 MB
1951 Special Protection Problems Solved With Gates and Flashers   1.5 MB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
1923 Train-Order Signals at Interlockers   3.6 MB
Chicago Heights, IL 4
1932 B&OCT Stops Theft of Coal with Four Automatic Plants at Chicago Heights, IL   1.9 MB
1925 Division Train Control Installation on C&EI Approved by ICC   2.9 MB
1960 News briefs. 1960-02   995.4 KB
1950 Signals for Trains at Highway Crossings   5.9 MB
Chicago Jct., Kansas City, MO 1
1956 New Three-Track Interchange Includes Interlocking and Talk-Backs   8.9 MB
Chicago Junction 3
1938 B&OCT Installs Route Interlocking   8.9 MB
1923 News of the Month (November 1923)   1.8 MB
1928 Rock Island Completes 33-Lever Electric Interlocker   2.8 MB
Chicago Motor Club 1
1937 Modernizing Crossing Protection With New Safety Features   2.9 MB
Chicago North Shore & Milwaukee 5
1954 Automatic Gates Increase Safety   3.2 MB
1941 Automatics Installed on North Shore   1.6 MB
1938 North Shore Installs Automatics   3.9 MB
1926 North Shore Line Installs Two Electric Interlockers   2.1 MB
1937 Rear-End Collision   1.3 MB
Chicago Railway Signal & Supply 1
1926 A New Development in Chromatic Light Signals   1.2 MB
Chicago Rapid Transit 5
1944 Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
1935 New and Unusual Signal and Relay Repair Shop on the Chicago Rapid Transit   9.0 MB
1935 New Interlocking in the Chicago Loop   4.0 MB
1937 Rear-End Collision   1.3 MB
1941 Splicing a Submarine Cable   4.6 MB
Chicago South Shore & South Bend 15
1929 Automatic Gauntlet Signals Installed on the South Shore   1.9 MB
1927 Chicago South Shore & South Bend Changes Signal Equipment   2.6 MB
1928 Color Light Train Order Signals Are Effective   2.9 MB
1950 Gate-Arm Stripe Colors   3.4 MB
1947 Highway Crossing Protection Installed by Several Railroads in Gary, IndianaR   1.2 MB
1929 Marker Lights on Automatic Signals   994.2 KB
1949 New Space Radio Relay System Adopted by South Shore   4.2 MB
1963 News briefs. 1963-02   1.3 MB
1951 South Shore Line Records Gate Operations   375.1 KB
1928 South Shore Line Uses Spring Switches on Heavy Traffic Lines   1.4 MB
1934 South Shore Reconstructs Interlocking   1.2 MB
1933 The Chicago South Shore & South Bend's Signaling Progress   2.8 MB
1929 Trap Circuit for Drawbridge   980.8 KB
1956 Walkie-Talkies   1.5 MB
1930 What Protection at Drawbridges?   3.5 MB
Chicago subway 1
1944 Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Chicago switching district, IL 1
1947 Burlington Uses Radio on Switchers   909.1 KB
Chicago Transit Authority 21
1956 Automatic Crossing Gates on CTA Are Interconnected with Street Traffic Lights   5.1 MB
1958 Chicago Transit tests train-phone   282.5 KB
1952 Chicago's Newest Subway Has Automatic Block Signaling and Train Stop   1.1 MB
1954 Junction Controlled Automatically   2.5 MB
1950 Lunar White   419.3 KB
1957 More automation for signaling in 1957   1.2 MB
1955 Much is new in signaling for 1955   826.7 KB
1960 News briefs. 1960-02   995.4 KB
1960 News briefs. 1960-03   1.9 MB
1961 News briefs. 1961-01   761.9 KB
1961 News briefs. 1961-03   1.0 MB
1961 News briefs. 1961-05   1.1 MB
1963 News briefs. 1963-03   790.6 KB
1964 News briefs. 1964-08   811.5 KB
1965 News briefs. 1965-02   1.9 MB
1965 News briefs. 1965-06   1.2 MB
1965 News briefs. 1965-07   788.2 KB
1966 News briefs. 1966-01   1.4 MB
1960 Railroads fit automation   181.2 KB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
1959 Signaling moderate during '58   528.6 KB
Chicago Union Station 6
1932 Burlington Installs Extensive New Electric Interlocking   3.6 MB
1925 Interlockings of New Chicago Station   7.8 MB
1923 New Type of Signals Being Installed at the Chicago Union Station   799.6 KB
1932 Reconstruction of an Interlocking   1.7 MB
1930 Signal Aspects for a Four Block System   2.8 MB
1922 Signaling Busy Passenger Terminals   969.1 KB
Chicago, Burlington & Quincy 121
1938 "Yard Limit" Boards in CTC Territory   1.3 MB
1949 A Century of Signal Glass Developments   4.2 MB
1940 A Change in the Requisites, Definitions and Regulations   1.2 MB
1935 Aerial Cable Versus Open Line   3.9 MB
1932 An Early Automatic Interlocking   411.4 KB
1950 Audible Warning Sounded When Dragging Equipment Detectors Operate   4.2 MB
1958 Automatic classification yard in service on the Burlington at Chicago   2.9 MB
1939 Automatic Cut-Outs at an Automatic Interlocking   7.6 MB
1934 Automatic Interlocking in Train Control Territory   1.5 MB
1928 Burlington Completes Automatic Signals Chicago to Denver   5.1 MB
1930 Burlington Completes Centralized Traffic Control on 24 Miles of Single Track   3.7 MB
1947 Burlington Concentrates CTC Control at Division Headquarters   840.8 KB
1956 Burlington Has Compact Control Machine for Consolidation of 14 Interlockings   11.3 MB
1956 Burlington Has Modified CTC for Medium Traffic Single-Track   7.2 MB
1930 Burlington Installs Centralized Control on Nine Miles of Double Track   1.8 MB
1951 Burlington Installs Extensive Interlocking at Kansas City   1.0 MB
1932 Burlington Installs Extensive New Electric Interlocking   3.6 MB
1959 Burlington installs modified CTC   1.0 MB
1937 Burlington Protects Three Crossings   6.9 MB
1939 Burlington Replaces Semaphores With Color Lights   3.4 MB
1951 Burlington Simplifies CTC for Light-Traffic Single Track   1.7 MB
1946 Burlington Tests Show Signals Adequate   1.3 MB
1947 Burlington Uses Radio on Switchers   909.1 KB
1932 Burlington's Reconstruction Program at Galesburg Involves Modern Interlocking Plants   2.6 MB
1931 Call-on Route Control   1.4 MB
1933 Call-On Signals (editorial)   1.0 MB
1925 CB&Q Controls Switches Remotely   3.7 MB
1931 CB&Q Installs Electric Interlockinig   3.3 MB
1923 CB&Q Installs New Light Signals   4.1 MB
1925 CB&Q Plant Has Novel Features   5.5 MB
1956 Centralia Has Protection of All Crossings   6.7 MB
1928 Centralized Control on Burlington Saves $16,200 a Year   2.4 MB
1929 Centralized Control Used for Ends of Double Track   2.1 MB
1930 Centralized Traffic Control Indications   1.1 MB
1943 Centralized Traffic Control Installed on 39 Miles of the Burlington   6.1 MB
1943 Change-Over Circuits   739.0 KB
1926 Color Light Signal and A.C. Floating Change-Over on the Burlington   1.9 MB
1943 Continuously Coded Local Line Wire Signal Control Circuits   4.5 MB
1954 CTC into Service   2.5 MB
1955 CTC on single and double track   406.8 KB
1950 DC Track Circuit Trouble   1.6 MB
1936 Demands for Modern Signaling   12.1 MB
1926 Directing Trains By Signals   1.9 MB
1936 Double-Caution Signaling   3.4 MB
1928 Early APB Signaling   408.5 KB
1933 Economics of Modern Signaling   2.1 MB
1934 Emergency CTC Equipment   461.2 KB
1915 Emergency Suburban Traffic   252.9 KB
1925 Excellent Results for 35 Years on Burlington   1.5 MB
1939 ICC Approves Automatic Interlocking to Replace Mechanical Plant   1.0 MB
1947 ICC Holds Signal Hearing   507.5 KB
1965 Indication locking inadequate says ICC in report   844.7 KB
1935 Inspecting Switch Circuit Controllers   1.7 MB
1935 Installation of Bond Wires   4.0 MB
1929 Interlocking Controlled Remotely   2.7 MB
1953 Location of Signal Heads   624.7 KB
1929 Maintenance Tests at Burlington Interlocker   1.2 MB
1965 Midwest RRs fight the weather   914.4 KB
1950 Modern Communications In Yards and Terminals   1.4 MB
1957 More automation for signaling in 1957   1.2 MB
1947 More CTC on the Burlington   2.0 MB
1946 More Difficult to Get a Call-On Signal   488.8 KB
1951 More Signal Construction in 1950   1.0 MB
1955 Much is new in signaling for 1955   826.7 KB
1931 New Control System Used at Electric Interlocking on the Burlington   3.5 MB
1918 New Electric Interlocking at Clyde, IL   418.7 KB
1930 New Electric Interlocking on the Burlington Eliminates 160 Train Stops Per Day   2.8 MB
1946 New Signal Control Line Circuits in Centralized Traffic Control Territory on the Burlington   2.8 MB
1956 New Three-Track Interchange Includes Interlocking and Talk-Backs   8.9 MB
1954 New Wayside and Cab Signaling   753.2 KB
1955 News briefs. 1955-08   830.4 KB
1960 News briefs. 1960-02   995.4 KB
1960 News briefs. 1960-09   756.9 KB
1961 News briefs. 1961-06   725.8 KB
1962 News briefs. 1962-02   1.4 MB
1962 News briefs. 1962-04   1.2 MB
1962 News briefs. 1962-10   461.7 KB
1963 News briefs. 1963-11   1.4 MB
1964 News briefs. 1964-02   981.5 KB
1964 News briefs. 1964-07   833.0 KB
1964 News briefs. 1964-08   811.5 KB
1964 News briefs. 1964-11   797.3 KB
1965 News briefs. 1965-01   2.0 MB
1965 News briefs. 1965-09   381.7 KB
1965 News briefs. 1965-10   1.1 MB
1965 News briefs. 1965-11   1.2 MB
1931 Point Detector or Switch Circuit Controller for CTC Switches?   835.1 KB
1935 Preventing Unnecessary Operation of Highway-Railroad Crossing Signals   4.3 MB
1921 Proposed Modification of Stop-and-Proceed Rule   1.4 MB
1941 Protection at 38 Street Crossings In and Near Rock Island, Ill   3.1 MB
1935 Purple Signal Glasses   3.6 MB
1937 Push-Button Cut-Outs   989.3 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1918 Record Snowstorms Paralyze Transportation   424.7 KB
1930 Report of Committee I – Economics of Signaling   2.5 MB
1958 RS&C 50th anniversary: Railroad communications ... from Morse to microwave   3.3 MB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
1935 Safety of High Speed Trains   5.2 MB
1927 Several Effective Trap Circuit Schemes   1.4 MB
1928 Should Call-On Arms Be Used?   1.0 MB
1961 Should Sidings Have Circuits?   347.6 KB
1934 Signal Aspects at an Automatic Interlocking Plant   1.2 MB
1930 Signal Indications Direct Trains on the Paducah & Illinois   5.0 MB
1956 Signal Lamp Test   1.4 MB
1935 Signaling for Higher Train Speeds   3.0 MB
1959 Signaling moderate during '58   528.6 KB
1929 Signaling Problems of the Future   1.5 MB
1936 Signals Installed at 26 Crossings in Dubuque, IA   13.8 MB
1956 Switch Machines for CTC   985.3 KB
1935 The Railways' Answer to the Demand for Speed   2.8 MB
1925 The Train Control Situation   853.0 KB
1920 The Use of Signals for Better Train Operation (Part 2 of 2)   7.3 MB
1954 This Automatic Block Is Different   3.3 MB
1939 Track Relay Release Time   1.6 MB
1937 Track Shunting Problems   947.3 KB
1926 Train Control Progress in 1925   3.1 MB
1925 Train Operation by Signal Indication on Burlington for 14 Years   679.2 KB
1956 Train Operations When CTC Fails   2.4 MB
1958 What's the answer? CTC locking   269.2 KB
1951 What's the Answer? Stop Signals in CTC   274.3 KB
1937 Zephyr Train Telephones   2.3 MB
Chicago, IL 113
1960 "Dry" message duplication saves money   234.7 KB
1932 A Call-On Signal Is Different from a Stop and Proceed Signal   667.6 KB
1916 A New York Central Plant in Chicago   590.7 KB
1919 A Peculiar Accident   251.7 KB
1916 AC Signaling for Chicago Terminals   585.7 KB
1958 Automatic classification yard in service on the Burlington at Chicago   2.9 MB
1937 Automatic Gates on the Rock Island   7.3 MB
1944 Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
1938 B&OCT Installs Route Interlocking   8.9 MB
1941 Belt Railway of Chicago Installs Interlocking   12.3 MB
1917 Block Signals on the Monon   675.3 KB
1928 Burlington Completes Automatic Signals Chicago to Denver   5.1 MB
1956 Burlington Has Compact Control Machine for Consolidation of 14 Interlockings   11.3 MB
1932 Burlington Installs Extensive New Electric Interlocking   3.6 MB
1947 Burlington Uses Radio on Switchers   909.1 KB
1929 C&EI Derailment and Collision at Chicago   755.9 KB
1959 C&NW has system-wide car reporting   702.6 KB
1965 C&NW’s ATC uses 100 cps AC   901.0 KB
1953 Chicago & Western Indiana Installs Easily Manipulated Interlocking   8.1 MB
1958 Chicago Transit tests train-phone   282.5 KB
1952 Chicago's Newest Subway Has Automatic Block Signaling and Train Stop   1.1 MB
1926 Color Light Signal and A.C. Floating Change-Over on the Burlington   1.9 MB
1958 Crossing protection program saves 59%   553.4 KB
1960 Crossings are safer after 10 years   454.4 KB
1947 Crossover protection on the GM&O   2.6 MB
1958 CTC Handles 15 More Trains   2.2 MB
1926 Directing Trains By Signals   1.9 MB
1934 Economy in Operation of Track Circuits   554.1 KB
1943 Electric Interlocking Installed On IC   12.8 MB
1938 Electric Switch Heaters at Rock Island Interlocking   1.8 MB
1926 Electro-Pneumatic Car Retarders in Service on Illinois Central   3.8 MB
1915 Emergency Suburban Traffic   252.9 KB
1925 Excellent Results for 35 Years on Burlington   1.5 MB
1941 Flashing Yellow as a Fourth Aspect on the IC   2.6 MB
1952 Gates at Eight Street Crossings on the Milwaukee Road   503.5 KB
1940 Gates, Signals and Traffic Lights at a Wabash Crossing   6.8 MB
1950 IC Rebuilds Classification Yard   6.9 MB
1947 ICC Holds Signal Hearing   507.5 KB
1946 ICC Signal Hearing   1.3 MB
1947 ICC Signal Hearings   179.7 KB
1932 Illinois Central Installs 68-Lever Electric Plant   3.3 MB
1941 Illinois Central Uses Automatic Telephone System on Chicago Terminal Area   5.8 MB
1939 Interconnection of Train Signals and Crossing Protection   1.1 MB
1911 Interlocking on the North Western Terminal   7.6 MB
1958 Interlocking saves time and money for the Belt Railway of Chicago   2.0 MB
1940 Interlockings Installed at Two Crossings   6.5 MB
1925 Interlockings of New Chicago Station   7.8 MB
1954 Junction Controlled Automatically   2.5 MB
1956 Length of Train Selects Control of Crossing Gates on Illinois Central   4.6 MB
1960 Lock bypass causes 2 accidents   370.2 KB
1925 Maintenance on C&NW Terminals   12.5 MB
1931 Michigan Central Makes Extensive Improvements in Signaling System   3.3 MB
1964 Milwaukee installs its first microwave   277.4 KB
1938 Milwaukee Rehabilitates Large Plant   8.0 MB
1942 Milwaukee Replaces Mechanical Plant With All-Relay Electric Interlocking   5.7 MB
1941 Modern Entrance-Exit Interlocking Replaces Mechanical Plant On Indiana Harbor Belt   6.9 MB
1957 More automation for signaling in 1957   1.2 MB
1951 More Signal Construction in 1950   1.0 MB
1955 Much is new in signaling for 1955   826.7 KB
1935 New and Unusual Signal and Relay Repair Shop on the Chicago Rapid Transit   9.0 MB
1916 New Automatic Signals on Grand Trunk   997.0 KB
1917 New C&NW Bascule Bridge Interlocking   761.1 KB
1924 New Interlocking Construction Ideas   3.4 MB
1935 New Interlocking in the Chicago Loop   4.0 MB
1917 New Plant in Chicago Terminal District   591.7 KB
1935 New Signaling on the Route of the C&NW "400"   9.6 MB
1923 New Type of Signals Being Installed at the Chicago Union Station   799.6 KB
1954 New Wayside and Cab Signaling   753.2 KB
1955 News briefs. 1955-08   830.4 KB
1960 News briefs. 1960-06   1.2 MB
1962 News briefs. 1962-08   675.9 KB
1964 News briefs. 1964-05   1.0 MB
1965 News briefs. 1965-04   1.5 MB
1965 News briefs. 1965-09   381.7 KB
1938 North Shore Installs Automatics   3.9 MB
1929 NYC Expands Electric Plant By Adding 48 Levers   2.7 MB
1931 One Electric Interlocking for Two Drawbridges   3.1 MB
1920 Pere Marquette Resort Special in Head-On Collision   354.4 KB
1918 Preparation For Winter On a Busy Terminal   273.8 KB
1965 PRR converts two hump yards   634.6 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1941 Railway Exhibit Presented to Museum of Science and Industry   636.5 KB
1937 Rear-End Collision   1.3 MB
1932 Reconstruction of an Interlocking   1.7 MB
1910 Reconstruction of Burnside Interlocking   863.7 KB
1918 Record Snowstorms Paralyze Transportation   424.7 KB
1957 Relay Interlocking Saves Time at Yard Entrances   2.5 MB
1929 Report on C&NW Side Collision at Chicago   569.4 KB
1928 Rock Island Completes 33-Lever Electric Interlocker   2.8 MB
1917 Rock Island Signaling on the Chicago Terminal   1.2 MB
1953 Route Lever Interlocking on Rock Island   6.5 MB
1935 Safety of High Speed Trains   5.2 MB
1938 Semi-Automatic Gates on the Milwaukee   3.2 MB
1960 Signal construction steady in 1959   385.2 KB
1933 Signal Publicity   666.2 KB
1949 Signaling Adapted to Traffic On the Rock Island   5.2 MB
1911 Signaling and Interlocking on the North Western Terminal in Chicago   1.1 MB
1922 Signaling Busy Passenger Terminals   969.1 KB
1935 Signaling for Higher Train Speeds   3.0 MB
1959 Signaling moderate during '58   528.6 KB
1927 Signaling of IC Chicago Terminal   6.4 MB
1934 South Shore Reconstructs Interlocking   1.2 MB
1941 Splicing a Submarine Cable   4.6 MB
1935 The "400" to Run on Six and One Half Hour Schedule   942.0 KB
1911 The Newest Terminal Interlocking   611.9 KB
1953 The North Western Installs Automatic Train-Stop System   3.5 MB
1915 The Push Button Interlocking Plant at Clearing Yard   351.3 KB
1937 Three Gate Crossings in a Row   4.2 MB
1926 Train Control Progress in 1925   3.1 MB
1941 Two New Interlockings on the C&WI   5.1 MB
1935 Western Indiana Installs All-Relay Interlocking   11.4 MB
1959 What’s the answer? Atomic lamps. 1959-12   194.6 KB
1917 Wigwag signals on an Electric Line   239.2 KB
Chicago, Indianapolis & Louisville 19
1932 A Detector Bar Fails   1.5 MB
1941 A Review of 1940 and Prospects for the Future   1.3 MB
1911 A Summary of Signaling Practice   3.6 MB
1917 Block Signals on the Monon   675.3 KB
1937 Broken Rails   1.1 MB
1942 Chicago, Indianapolis & Louisiville Modernizes Automatic Signaling   3.9 MB
1937 Crossing Protection on the Monon   5.0 MB
1950 Differentiation Between Signals   955.8 KB
1952 Interlockings Modernized at Three Railroad Crossings   974.7 KB
1927 Miller Train Control On the Monon   582.2 KB
1920 Modern Telegraph Office at Indianapolis   3.1 MB
1941 Monon Changes Approved   760.8 KB
1945 Monon Remote Control Signaling Saves Train Time   3.5 MB
1929 Monon Revamps Signals to Co-Ordinate with Automatic Train Stop   2.1 MB
1918 Record Snowstorms Paralyze Transportation   424.7 KB
1935 Removal of Switch Indicators   2.3 MB
1928 Should Call-On Arms Be Used?   1.0 MB
1925 The Train Control Situation   853.0 KB
1928 Train Order Indicators Used Successfully on the CI&L   604.3 KB
Chicago, Lake Shore & South Bend 1
1910 Electric Drawbridge Interlocking   1.2 MB
Chicago, Milwaukee & St. Paul 19
1911 A Summary of Signaling Practice   3.6 MB
1927 Comparative Maintenance Costs of Signaling on the CM&StP   2.9 MB
1910 Construction Crew on the CM&StP   420.8 KB
1928 Continued Activity and Development in Signaling   1.1 MB
1915 Emergency Suburban Traffic   252.9 KB
1911 Letters to the Editor: Uniform Signaling: A reply to Mr. Rudd   1.8 MB
1917 Light Signals On CM&StP   781.9 KB
1918 Maintaining an Interlocking Plant at High Tide   241.8 KB
1917 New Interlocking Plant in Milwaukee   1.2 MB
1921 Non-Interlocking Non-Stop Grade Crossings   1.6 MB
1911 Railway Signal Association Convention: Committee I: Signaling Practice   3.8 MB
1918 Record Snowstorms Paralyze Transportation   424.7 KB
1926 Recurrent Acknowledgment at Stop Signals   961.9 KB
1916 Signaling the Milwaukee's Electric Zone   624.8 KB
1927 Smash Boards at Automatic Interlockers   423.8 KB
1920 The New Electrification on the St. Paul   485.4 KB
1925 The Train Control Situation   853.0 KB
1926 Train Control Progress in 1925   3.1 MB
1923 Train-Order Signals at Interlockers   3.6 MB
Chicago, Milwaukee, St. Paul & Pacific 94
1960 Fourteen RRs adopt new operating code   945.4 KB
1960 "Dry" message duplication saves money   234.7 KB
1943 A Review of 1942   2.9 MB
1947 Annual Review and Outlook   425.1 KB
1928 Automatic Interlockers Are Profitable Investments   3.3 MB
1935 Automatic Interlocking on the Wabash   2.9 MB
1937 Automatic Plant Replaces Mechanical Interlocking   1.3 MB
1932 B&OCT Stops Theft of Coal with Four Automatic Plants at Chicago Heights, IL   1.9 MB
1933 Call-On Signals (editorial)   1.0 MB
1943 Centralized Traffic Control on the Milwaukee   2.8 MB
1930 Color-light Automatic Block Signals and Automatic Interlocking   2.4 MB
1933 Consolidated Interlockings   1.8 MB
1932 Crossing Problem   2.6 MB
1929 Crossing Protection Installed Extensively on the Milwaukee   1.3 MB
1943 Crossing Protection on Milwaukee   5.7 MB
1939 CTC and Automatic Signals on the Rock Island   6.6 MB
1958 CTC Handles 15 More Trains   2.2 MB
1934 CTC Replaces Staff on Milwaukee   2.0 MB
1938 CTC Replaces Staff System on the Milwaukee   2.3 MB
1936 Demands for Modern Signaling   12.1 MB
1947 Developments in Signaling   498.7 KB
1961 Digital Computer Simulates CTC Dispatcher   2.8 MB
1940 Drafting Boards   1.8 MB
1931 Efficiency Tests   1.9 MB
1931 Fight for Your Job   3.0 MB
1952 Gates at Eight Street Crossings on the Milwaukee Road   503.5 KB
1933 Graphic Recorders   843.3 KB
1935 Great Western Constructs Automatic Interlocking   6.8 MB
1938 Highway Crossing Protection and Spring Switch on Milwaukee   3.2 MB
1946 ICC Signaling Investigation   770.4 KB
1939 Interconnection of Train Signals and Crossing Protection   1.1 MB
1932 Location of Home Signals   853.4 KB
1965 Midwest RRs fight the weather   914.4 KB
1949 Milwaukee Installs Automatic Block   8.2 MB
1947 Milwaukee Installs Block System on 98 Miles   1.2 MB
1945 Milwaukee Installs CTC On 51 Miles   6.5 MB
1964 Milwaukee installs its first microwave   277.4 KB
1938 Milwaukee Rehabilitates Large Plant   8.0 MB
1942 Milwaukee Replaces Mechanical Plant With All-Relay Electric Interlocking   5.7 MB
1945 Milwaukee Tests Train Communication (January)   2.0 MB
1945 Milwaukee Tests Train Communication (June)   2.4 MB
1934 Milwaukee to Use Cab Signals   699.1 KB
1939 Milwaukee Utilizes Teletype   1.6 MB
1951 More Signal Construction in 1950   1.0 MB
1955 Much is new in signaling for 1955   826.7 KB
1940 New Automatic Block Signaling on the Milwaukee   6.3 MB
1933 New Interlockers – Reversion to Single Track   418.4 KB
1956 New Three-Track Interchange Includes Interlocking and Talk-Backs   8.9 MB
1960 News briefs. 1960-10   1.8 MB
1961 News briefs. 1961-07   648.9 KB
1963 News briefs. 1963-01   951.3 KB
1963 News briefs. 1963-12   429.2 KB
1964 News briefs. 1964-04   1.3 MB
1964 News briefs. 1964-09   879.4 KB
1964 News briefs. 1964-10   768.6 KB
1965 News briefs. 1965-06   1.2 MB
1965 News briefs. 1965-07   788.2 KB
1965 News briefs. 1965-09   381.7 KB
1937 Personal Mention: L. B. Porter   1.5 MB
1931 Preparation of Signal Circuit Plans   2.0 MB
1935 Preventing Unnecessary Operation of Highway-Railroad Crossing Signals   4.3 MB
1943 Progress in the Use of Coded Track Circuits   1.6 MB
1941 Protection at 38 Street Crossings In and Near Rock Island, Ill   3.1 MB
1931 Report on Milwaukee-Omaha Collision   1.5 MB
1932 Reverting to Single Track   646.7 KB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
1935 Safety of High Speed Trains   5.2 MB
1929 Secure New Ordinances for Changes in Crossing Protection   691.4 KB
1938 Semi-Automatic Gates on the Milwaukee   3.2 MB
1960 Signal construction steady in 1959   385.2 KB
1935 Signaling for Higher Train Speeds   3.0 MB
1959 Signaling moderate during '58   528.6 KB
1931 Signaling the New Kansas City Line of the Rock Island-Milwaukee   6.4 MB
1958 Signaling to cut expenses in '58   411.4 KB
1936 Signals Installed at 26 Crossings in Dubuque, IA   13.8 MB
1951 Single Track with CTC Replaces Double Track on Milwaukee   586.0 KB
1950 Special Interlocking Controls   2.2 MB
1937 Special Locking Release   2.4 MB
1936 Speed at Automatic Plants   4.9 MB
1957 Survey shows progress in signal education   330.6 KB
1961 Survey Tells How Railroads Use Hotbox Detectors   1.8 MB
1937 Switch Protection in Automatic Territory   3.0 MB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
1936 Testing Automatic Interlockings   3.5 MB
1945 The New Connections at Kansas City For Milwaukee and Rock Island   4.7 MB
1935 The Railways' Answer to the Demand for Speed   2.8 MB
1934 The Safety Feature of Signals   456.5 KB
1937 Three Gate Crossings in a Row   4.2 MB
1939 Unusual Signal Trouble   891.9 KB
1950 Unusual Trouble   3.0 MB
1965 What's the Answer? 1965-07   629.7 KB
1960 What's the answer? Snow shields   424.6 KB
1951 What's the Answer? Stop Signals in CTC   274.3 KB
1928 Why Markers for Automatic Signals?   494.6 KB
Chicago, Rock Island & Gulf 1
1936 Reconstruction of Interlocking at the Dallas Union Terminal   14.8 MB
Chicago, Rock Island & Pacific 99
1936 34 Train Stops Eliminated Daily by an Interlocking   10.4 MB
1932 A Call-On Signal Is Different from a Stop and Proceed Signal   667.6 KB
1911 A Summary of Signaling Practice   3.6 MB
1922 A Swing Rail Crossing   557.8 KB
1935 Accident at Automatic Plant   4.5 MB
1938 Adapting Signaling to Requirements   1.7 MB
1914 All Electric Interlocking at Joliet   1.5 MB
1932 All-Relay Interlocking Installed by Rock Island   1.1 MB
1947 Annual Review and Outlook   425.1 KB
1931 Another Unique Interlocker on the Rock Island   1.4 MB
1926 Are Smash-Boards Necessary at Automatic Crossing Plants?   816.3 KB
1951 Automatic Block for Few Fast Trains   286.5 KB
1939 Automatic Cut-Outs at an Automatic Interlocking   7.6 MB
1937 Automatic Gates on the Rock Island   7.3 MB
1933 Automatic Interlocking for Drawbridge   2.0 MB
1934 Automatic Interlocking in Train Control Territory   1.5 MB
1935 Automatic OSing Devices Usde by the Rock Island   2.2 MB
1959 Burlington installs modified CTC   1.0 MB
1928 Can Preliminary Latch Locking Be Eliminated   595.1 KB
1938 Changing Relays   1.7 MB
1947 Choice of Interlocking Control Machines   266.5 KB
1938 Clearing of Signals at Automatic Interlockings   2.2 MB
1944 Coded Track Circuits for CTC and Cab Signaling   4.0 MB
1956 Conelrad – A Civil Defense Measure … How Some Railroads are Participating   4.1 MB
1928 Continued Activity and Development in Signaling   1.1 MB
1933 Control of Switch from Locomotive Cab   1.2 MB
1932 CRI&P Extends Centralized Control   2.6 MB
1935 Crossing Bells at Flasher Signals   1.9 MB
1939 CTC and Automatic Signals on the Rock Island   6.6 MB
1955 CTC on single and double track   406.8 KB
1927 Derail Failure Results in Collision on Crossing   995.6 KB
1926 Derail Pockets for Interlocking of Crossing at Joint Passenger Station   884.6 KB
1931 Economy of Smaller Towers   539.7 KB
1936 Electric Lights for Semaphores and Train Approach Indicators on the Rock Island   8.9 MB
1932 Electric Lock on Spring Switch   399.3 KB
1938 Electric Switch Heaters at Rock Island Interlocking   1.8 MB
1915 Emergency Suburban Traffic   252.9 KB
1916 Government Drawbridge Signaling   670.2 KB
1939 ICC Approves Automatic Interlocking to Replace Mechanical Plant   1.0 MB
1947 ICC Holds Signal Hearing   507.5 KB
1947 ICC Signal Hearings   179.7 KB
1950 Increasing Use of Carrier   1.3 MB
1965 Indication locking inadequate says ICC in report   844.7 KB
1932 Location of Home Signals   853.4 KB
1950 Microwaves on Railroads   1.3 MB
1965 Midwest RRs fight the weather   914.4 KB
1964 MP interlocking uses solid-state control system   410.9 KB
1955 Much is new in signaling for 1955   826.7 KB
1956 New Three-Track Interchange Includes Interlocking and Talk-Backs   8.9 MB
1960 News briefs. 1960-05   1.0 MB
1961 News briefs. 1961-01   761.9 KB
1961 News briefs. 1961-10   1.0 MB
1963 News briefs. 1963-01   951.3 KB
1929 NYC Expands Electric Plant By Adding 48 Levers   2.7 MB
1940 Obituary: Leroy Wyant   1.0 MB
1934 Observance of Signal Indications, How Secured   1.0 MB
1946 Polarized Coded Track and Control Circuits On the Rock Island   3.4 MB
1941 Protection at 38 Street Crossings In and Near Rock Island, Ill   3.1 MB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1911 Railway Signal Association Convention: Committee I: Signaling Practice   3.8 MB
1910 Reconstruction of Burnside Interlocking   863.7 KB
1933 Reducing Unnecessary Train Stops   2.5 MB
1911 Relay Shipping Case   1.1 MB
1948 Rock Island Adapts CTC to Medium-Traffic Single-Track Line   1.3 MB
1928 Rock Island Completes 33-Lever Electric Interlocker   2.8 MB
1946 Rock Island Develops a Unique System of Single-Track Station-to Station Automatic Block Based on Coded Track Circuits Without Line Wires   8.3 MB
1937 Rock Island Installs Automatic Blocks   10.1 MB
1944 Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
1924 Rock Island Installs Train Control   847.9 KB
1937 Rock Island Petitions Removal of Train Control   1.4 MB
1917 Rock Island Signaling on the Chicago Terminal   1.2 MB
1946 Rock Island Uses Carrier Equipment for Automatic OS Reports   3.9 MB
1929 Rock Island Uses Novel System for Operation by Signal Indication   1.7 MB
1937 Rocket Train Telephones   5.7 MB
1937 Route Control Interlocking – A New Signaling Development   2.9 MB
1953 Route Lever Interlocking on Rock Island   6.5 MB
1958 RS&C 50th anniversary: Railroad communications ... from Morse to microwave   3.3 MB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
1929 Secure New Ordinances for Changes in Crossing Protection   691.4 KB
1933 Shortening Masts   879.8 KB
1928 Should Call-On Arms Be Used?   1.0 MB
1929 Signal Aspects at End of Double Track   514.3 KB
1960 Signal construction steady in 1959   385.2 KB
1949 Signaling Adapted to Traffic On the Rock Island   5.2 MB
1931 Signaling the New Kansas City Line of the Rock Island-Milwaukee   6.4 MB
1958 Signaling to cut expenses in '58   411.4 KB
1936 Speed at Automatic Plants   4.9 MB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
1930 The Rock Island Develops Unique Interlocker with No Mechanical Locking   2.4 MB
1954 This Automatic Block Is Different   3.3 MB
1949 Train Indicator for Motor Car   1.0 MB
1931 Twelve-Track Yard Indicator on the Rock Island   888.5 KB
1934 Use of Dwarf Calling-On Signals   1.0 MB
1956 Walkie-Talkies   1.5 MB
1935 Western Indiana Installs All-Relay Interlocking   11.4 MB
1955 What's the Answer? CTC Into Service   409.5 KB
1951 What's the Answer? Stop Signals in CTC   274.3 KB
1958 What’s the answer? Interlocking check   175.3 KB
1931 Why Not Eliminate Train Stops at Permissive Wayside Signals   763.1 KB
Chicago, St. Paul, Minneapolis & Omaha 5
1947 ICC Signal Hearings   179.7 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1931 Report on Milwaukee-Omaha Collision   1.5 MB
1932 Smashboard Mechanisms   1.7 MB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
Chickasha, OK 1
1947 ICC Signal Hearings   179.7 KB
Chiles, KY 2
1960 News briefs. 1960-09   756.9 KB
1930 Signal Indications Direct Trains on the Paducah & Illinois   5.0 MB
Chillicothe, IL 2
1927 Santa Fe Is Operating Trains by Cab Signaling With Train Control   6.4 MB
1926 Train Control Progress in 1925   3.1 MB
Chillicothe, MO 1
1945 Milwaukee Installs CTC On 51 Miles   6.5 MB
Chillicothe, OH 1
1959 News briefs. 1959-05   506.5 KB
Chippewa Falls, WI 1
1961 News briefs. 1961-10   1.0 MB
Chrisman, IL 1
1960 News briefs. 1960-03   1.9 MB
Christiansburg, VA 1
1960 Signaling enters automation   630.6 KB
Chrystie St., New York, NY 1
1963 News briefs. 1963-12   429.2 KB
Church, IL 1
1962 News briefs. 1962-06   989.1 KB
Churchill, William 1
1915 Red as a Danger Indication   283.5 KB
Cicero, IL 5
1958 Automatic classification yard in service on the Burlington at Chicago   2.9 MB
1956 Automatic Crossing Gates on CTA Are Interconnected with Street Traffic Lights   5.1 MB
1956 Burlington Has Compact Control Machine for Consolidation of 14 Interlockings   11.3 MB
1954 New Wayside and Cab Signaling   753.2 KB
1959 Signaling moderate during '58   528.6 KB
Cincinnati Union Terminal 3
1947 Choice of Interlocking Control Machines   266.5 KB
1933 Cincinnati Terminal Interlocking   4.1 MB
1937 Ohio Flood Damages Signaling   9.7 MB
Cincinnati, Hamilton & Dayton 1
1911 A Summary of Signaling Practice   3.6 MB
Cincinnati, Indianapolis & Western 1
1920 Modern Telegraph Office at Indianapolis   3.1 MB
Cincinnati, New Orleans & Texas Pacific 4
1960 News briefs. 1960-11   875.5 KB
1927 Protecting Main Line Switches   486.2 KB
1925 The Train Control Situation   853.0 KB
1926 Train Control Progress in 1925   3.1 MB
Cincinnati, OH 14
1951 B&O Installs Modern Interlocking   871.3 KB
1930 C&O Installs New Interlocking and Either-Direction Signaling   5.0 MB
1947 Choice of Interlocking Control Machines   266.5 KB
1933 Cincinnati Terminal Interlocking   4.1 MB
1953 Control of Four Layouts Consolidated in One Interlocking   5.3 MB
1960 CTC signals clear automatically   1.1 MB
1934 Electric Interlocking on the B&O   1.1 MB
1960 From the field   954.3 KB
1955 Much is new in signaling for 1955   826.7 KB
1961 News briefs. 1961-07   648.9 KB
1937 Ohio Flood Damages Signaling   9.7 MB
1924 Three Train Control Contracts Let   1.9 MB
1954 Unique Combinations of Single-Track and Two-Track Developed on the Southern   3.8 MB
1964 What CTC Can Do For You   417.8 KB
circuit design 1
1939 Safety and Design of Signal Circuits   5.0 MB
circuit plans 12
1962 Automatic Dispatching   2.1 MB
1960 CNR uses speed selection for gates   980.7 KB
1937 Drawings of Relay and Junction Box Details   1.0 MB
1959 Kinks. 1959-11   258.3 KB
1959 Santa Fe CTCs double track line   2.2 MB
1958 Santa Fe tests AF track circuits   1.6 MB
1963 Special Report: P&LE Signaling and Communications   3.9 MB
1935 Standardization of Circuit Plans for Highway Crossing Signals   4.5 MB
1960 What's the answer? AC track circuits   290.3 KB
1958 What's the answer? Crossing circuits   254.4 KB
1958 What's the answer? Long dead sections   571.9 KB
1960 What’s the answer? Automatic OS   354.1 KB
circuits 16
1921 A New Idea in Traffic Locking On the C&O   1.7 MB
1943 A Review of 1942   2.9 MB
1920 A Special Circuit Saves Money   394.1 KB
1921 Absolute Permissive Block Signal System   1.2 MB
1948 All-Relay Interlocking on New Haven   1.2 MB
1935 Auto Stop Installed on C&NW   7.2 MB
1917 Block Signals on the Monon   675.3 KB
1943 Change-Over Circuits   739.0 KB
1935 Circuit for Flashing Light Signals   3.5 MB
1935 Circuit for Flashing Light Signals   3.6 MB
1935 Circuits for Crossing Signals   1.5 MB
1949 Controlled Overlaps for Single-Track APB Signaling   1.5 MB
1927 Design a Circuit to Obtain the Desired Operation of the Call-On Arms   602.2 KB
1954 New Wayside and Cab Signaling   753.2 KB
1937 Route Locking Circuits   1.9 MB
1911 Symbols and Nomenclature for Written Circuits   2.3 MB
civil defense 1
1956 Conelrad – A Civil Defense Measure … How Some Railroads are Participating   4.1 MB
Clagg, KY 1
1941 Pennsylvania Installs CTC at Louisville, KY   4.9 MB
Clapper, MO 1
1945 Manual Block-Remote Control Developed On the Wabash   5.7 MB
Clar, MO 1
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
Clara Street, New Orleans, LA 1
1954 New Orleans Passenger Terminal   4.7 MB
Clare, OH 1
1955 News briefs. 1955-08   830.4 KB
Clark St., Chicago, IL 1
1913 Illinois Central Alternating Current Signaling   2.5 MB
Clark, MO 1
1963 News briefs. 1963-06   961.3 KB
classification yard 11
1958 Central opens Young Yard   2.5 MB
1958 News briefs. 1958-01   1.8 MB
1960 News briefs. 1960-07   845.4 KB
1962 News briefs. 1962-02   1.4 MB
1962 News briefs. 1962-06   989.1 KB
1962 News briefs. 1962-07   494.2 KB
1962 News briefs. 1962-08   675.9 KB
1962 News briefs. 1962-09   829.8 KB
1965 News briefs. 1965-06   1.2 MB
1965 PRR converts two hump yards   634.6 KB
1915 The Push Button Interlocking Plant at Clearing Yard   351.3 KB
classification yards 12
1959 Britain's first automatic yard   312.0 KB
1959 Communications is everywhere at P&LE's Gateway Yard in Youngstown, Ohio   2.1 MB
1960 Gangs do signal maintenance   309.7 KB
1959 How retarder controls function at Young Yard on the NYC   978.1 KB
1950 IC Rebuilds Classification Yard   6.9 MB
1959 Mobile lab evaluates class yards   830.6 KB
1960 News briefs. 1960-02   995.4 KB
1960 News briefs. 1960-11   875.5 KB
1944 Railroad Applications of Electronics   1.9 MB
1960 Signal construction steady in 1959   385.2 KB
1959 Signaling moderate during '58   528.6 KB
1959 Signaling: 1960   225.2 KB
Claus, W. H. 2
1949 Controlled Overlaps for Single-Track APB Signaling   1.5 MB
1945 William H. Claus (promotion)   425.7 KB
Clausen, L. R. 1
1911 Letters to the Editor: Uniform Signaling: A reply to Mr. Rudd   1.8 MB
Clay Center, KS 1
1946 Rock Island Uses Carrier Equipment for Automatic OS Reports   3.9 MB
cleaning 1
1940 Signal Lens Cleaner   1.1 MB
Clearing Yard, Chicago, IL 3
1958 Interlocking saves time and money for the Belt Railway of Chicago   2.0 MB
1940 Interlockings Installed at Two Crossings   6.5 MB
1964 News briefs. 1964-05   1.0 MB
Clearing, Chicago, IL 1
1957 Relay Interlocking Saves Time at Yard Entrances   2.5 MB
Clearing, IL 1
1915 The Push Button Interlocking Plant at Clearing Yard   351.3 KB
Cleveland Transit System 2
1955 New Cleveland Transit System   917.8 KB
1962 News briefs. 1962-07   494.2 KB
Cleveland Union Terminal 4
1929 Elimination of Lock Rods   947.9 KB
1930 Interlocking at the Cleveland Union Terminal   7.8 MB
1930 Is Indication Locking Needed?   479.0 KB
1930 Unique Development at the Cleveland Interlocking   1.0 MB
Cleveland Union Terminal, Cleveland, OH 1
1955 New Cleveland Transit System   917.8 KB
Cleveland, Cincinnati, Chicago & St. Louis 30
1932 A Detector Bar Fails   1.5 MB
1927 Another APB Circuit Explanation   652.9 KB
1929 Big Four Improves Operation by Remote Control   2.5 MB
1930 Big Four Installs Simplified Interlocking With No Mechanical Locking   2.6 MB
1932 Big Four Uses Centralized Control For Remote Interlocking   1.8 MB
1947 Choice of Interlocking Control Machines   266.5 KB
1933 Dwarf Signal Locking   991.7 KB
1931 Economy of Smaller Towers   539.7 KB
1931 Efficiency Tests   1.9 MB
1929 Electric Approach and Stick Locking Features   866.2 KB
1920 Electric Interlocking at Bellefontaine, Ohio   3.8 MB
1937 Illumination as a Type of Crossing Protection   3.0 MB
1932 Improper Forestalling   669.7 KB
1927 Is Approach Lighting of Signals Really Economical?   1.2 MB
1929 Manual Block Signals Controlled Remotely on the Big Four   1.1 MB
1940 Mechanical Plant Modernized   4.2 MB
1957 More automation for signaling in 1957   1.2 MB
1923 News of the Month (October 1923)   1.9 MB
1937 Ohio Flood Damages Signaling   9.7 MB
1921 Proposed Modification of Stop-and-Proceed Rule   1.4 MB
1939 Recording Burning Time of Electric Lights   900.6 KB
1937 Route Control Interlocking – A New Signaling Development   2.9 MB
1931 Sequence of Levers   552.2 KB
1927 Should Motor Car Operators Watch Signals More Carefully   1.2 MB
1930 Signal Aspects for a Four Block System   2.8 MB
1932 Track Capacity   402.2 KB
1926 Train Control Progress in 1925   3.1 MB
1923 Train Operation Against Traffic   4.5 MB
1923 Train-Order Signals at Interlockers   3.6 MB
1920 What Scheme of Signaling is Most Desirable?   6.8 MB
Cleveland, OH 11
1947 Choice of Interlocking Control Machines   266.5 KB
1959 CTC discussed at AIEE meeting   445.2 KB
1930 Interlocking at the Cleveland Union Terminal   7.8 MB
1957 More automation for signaling in 1957   1.2 MB
1955 New Cleveland Transit System   917.8 KB
1964 NYC Moves CTC Point of Control   1.2 MB
1959 Signaling moderate during '58   528.6 KB
1958 Signaling to cut expenses in '58   411.4 KB
1935 Traffic Type Signals for Protection of Highway-Railroad Crossings   2.5 MB
1949 Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
1930 Unique Development at the Cleveland Interlocking   1.0 MB
Clifton Forge, VA 5
1928 C&O Signaling and Train Control Facilitate Operation   4.1 MB
1935 Centralized Traffic Control on the Chesapeake & Ohio   6.2 MB
1926 Economics of Single Track Signals   2.0 MB
1963 News briefs. 1963-03   790.6 KB
1965 News briefs. 1965-08   742.1 KB
Clifton Forge, WV 1
1960 News briefs. 1960-05   1.0 MB
Clifton Jct., NY 1
1934 Electric Interlocking on Staten Island Lines of the Baltimore & Ohio   1.2 MB
Clifton Park, MD 1
1955 News briefs. 1955-08   830.4 KB
Clifton, IL 1
1923 News of the Month (July 1923)   1.9 MB
Clinchfield 7
1953 CTC Keeps Trains Moving on Long Grades   6.3 MB
1960 Long-distance hot box detection   861.0 KB
1958 News briefs. 1958-01   1.8 MB
1961 Survey Tells How Railroads Use Hotbox Detectors   1.8 MB
1950 Train Movements by Signal Indication On the Clinchfield Route   12.0 MB
1958 What's the answer? CTC locking   269.2 KB
1960 What's the answer? Route signaling   547.7 KB
Clinton Jct., WI 1
1913 New Block Signaling on the North-Western   1.8 MB
Clinton Street, Chicago, IL 3
1911 Interlocking on the North Western Terminal   7.6 MB
1925 Maintenance on C&NW Terminals   12.5 MB
1911 Signaling and Interlocking on the North Western Terminal in Chicago   1.1 MB
Clinton, IA 3
1958 Crossing protection program saves 59%   553.4 KB
1934 Economy in Operation of Track Circuits   554.1 KB
1965 Midwest RRs fight the weather   914.4 KB
Clinton, IN 1
1948 CTC Keeps ‘em Rollin’ on C&EI   2.1 MB
Clintonville, IL 1
1917 Wigwag signals on an Electric Line   239.2 KB
Cloud, A. D. 1
1958 Six editors in 50 years   253.5 KB
Clovis, NM 2
1945 CTC West of the Pecos On the Santa Fe   4.6 MB
1961 News briefs. 1961-12   978.0 KB
Clybourn, Chicago, IL 1
1961 Check Switch Heaters Now   297.3 KB
Clyde, IL 1
1918 New Electric Interlocking at Clyde, IL   418.7 KB
Clyde, TX 1
1960 T&P moves CTC machine 78 miles   423.0 KB
Clyffeside, KY 1
1957 One Machine Controls Two Plants   2.2 MB
Clymers, IN 1
1965 News briefs. 1965-09   381.7 KB
CM Cabin, East Liberty, PA 1
1937 Remote Control on the Pennsylvania   5.2 MB
Coalhurst, Alberta 1
1947 Canadian Pacific Installs Absolute Permissive Block   774.8 KB
Cobourg, ON 1
1934 Remote Control Replaces Mechanical Interlocking on Canadian Pacific   1.9 MB
Cocoa, FL 2
1964 News briefs. 1964-12   981.5 KB
1965 News briefs. 1965-10   1.1 MB
code control 4
1947 Application of Code Principles to Signaling   406.6 KB
1958 DL&W-Erie joint operation is ready to go   643.6 KB
1958 Interlocking saves time and money for the Belt Railway of Chicago   2.0 MB
1958 Remote control saves money   868.5 KB
code line 8
1935 Aerial Cable Versus Open Line   3.9 MB
1950 CTC Code Lines   1.1 MB
1957 CTC on the SP has special devices   518.8 KB
1950 L&N Extends CTC on "EK"   10.4 MB
1958 MP consolidates CTC machines   797.2 KB
1956 Remote Control Converted to CTC   6.6 MB
1959 Santa Fe CTCs double track line   2.2 MB
1963 Special Report: P&LE Signaling and Communications   3.9 MB
code line failure 2
1956 Train Operations When CTC Fails   3.5 MB
1956 Train Operations When CTC Fails   2.4 MB
code line units 1
1950 New Developments   16.9 MB
code transmitter 2
1940 Coded Track Control   2.5 MB
1940 New Code Transmitter   2.1 MB
code transmitters 2
1944 Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
1937 New Devices- March 1937   18.1 MB
code-following relay 1
1940 Coded Track Control   2.5 MB
code-following track relay 1
1941 P4 Code-Following Relay   1.1 MB
coded cab signaling 3
1947 Application of Code Principles to Signaling   406.6 KB
1954 Modern Signaling in New Subways in Stockholm, Sweden   6.7 MB
1937 New Devices- March 1937   18.1 MB
coded cab signals 1
1961 News briefs. 1961-04   1.5 MB
coded carrier 5
1943 A Review of 1942   2.9 MB
1943 Centralized Traffic Control Installed On 64.6 Miles of the Seaboard   7.1 MB
1959 CTC discussed at AIEE meeting   445.2 KB
1944 Electronics In Signaling   709.8 KB
1944 N&W Installs CTC on Shenandoah Valley Line   10.2 MB
coded carrier control 1
1947 Burlington Concentrates CTC Control at Division Headquarters   840.8 KB
coded control 6
1947 CTC Down by the Ohio   2.7 MB
1964 Interlocking: New Solid State Coding System Is Fast   1.7 MB
1964 MP interlocking uses solid-state control system   410.9 KB
1937 Pennsylvania CTC Installation   7.0 MB
1937 Remote Control By Code   7.0 MB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
coded remote control 1
1950 New Developments   16.9 MB
coded track circuits 55
1940 11,000-Ft. Coded Track Circuits   13.6 MB
1940 A Review of 1939 and a Glance Into 1940   1.6 MB
1943 A Review of 1942   2.9 MB
1947 All-Relay Interlocking Replaces Mechanical Plant   1.5 MB
1951 Automatic Block for Few Fast Trains   286.5 KB
1951 Automatic Block Without Line Wires on the Kansas City Southern   723.0 KB
1957 Bessemer takes up second track and installs Centralized Traffic Control   700.5 KB
1951 Both Tracks Both Ways on Norfolk & Western   623.5 KB
1959 Burlington installs modified CTC   1.0 MB
1951 Burlington Simplifies CTC for Light-Traffic Single Track   1.7 MB
1951 Cab signal system   455.8 KB
1946 Catch Up With Progress   450.6 KB
1949 Coast Line Replaces Signaling On Engine District   8.1 MB
1941 Code-Following Polar Track Circuit Relay   1.4 MB
1940 Coded Signaling Control System on the Norfolk & Western   10.0 MB
1936 Coded Track Circuit   4.1 MB
1935 Coded Track Circuit Control   1.5 MB
1935 Coded Track Circuit Signaling on the Pennsylvania   9.8 MB
1949 Coded Track Circuits   1.1 MB
1944 Coded Track Circuits for CTC and Cab Signaling   4.0 MB
1940 Coded Track Control   2.5 MB
1943 Continuously Coded Local Line Wire Signal Control Circuits   4.5 MB
1955 CTC and cab signaling on Union Pacific   789.5 KB
1948 CTC Big Help to GM&O   1.7 MB
1959 CTC discussed at AIEE meeting   445.2 KB
1955 CTC moves trains on grades   762.8 KB
1943 CTC on the Bessemer & Lake Erie   8.7 MB
1958 CTC saves time and money for the Louisville & Nashville   446.6 KB
1947 Developments in Signaling   498.7 KB
1949 Milwaukee Installs Automatic Block   8.2 MB
1950 Modern Signaling Systems On Western Pacific   16.1 MB
1943 Modernization of Automatic Signaling On the New York Central   9.8 MB
1957 New control system for automatic block uses track circuits only   1.8 MB
1936 New Electro-Pneumatic Plant On Pennsylvania at Newark   23.9 MB
1943 New Haven Installs Five-Aspect Signaling Controlled By Coded Track Circuits   7.4 MB
1951 New NYC Interlocking Controlled by Synchrostep   1.2 MB
1944 New York Central Installs Coded Track Circuits   3.9 MB
1955 News briefs. 1955-08   830.4 KB
1958 One track does work of two on Maine Central   442.6 KB
1944 Pennsylvania Installs CTC On 53 Miles of Busy Single Track   8.5 MB
1935 Pole Lines for Automatic Signaling   1.6 MB
1943 Progress in the Use of Coded Track Circuits   1.6 MB
1944 Railroad Applications of Electronics   1.9 MB
1942 Railroad Signals Go to War   11.4 MB
1936 Remote Control on the Pennsylvania   14.5 MB
1958 Remote control saves money   868.5 KB
1944 Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
1958 RS&C 50th anniversary: Signaling ... manual to automatic   2.0 MB
1955 Santa Fe installs CTC on single track   610.2 KB
1957 Signal controls by track circuit only   575.8 KB
1949 Signaling Adapted to Traffic On the Rock Island   5.2 MB
1944 Signaling Construction Increased in 1943   8.8 MB
1944 Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB
1958 Special combinations of single-track and two-track replace double track on the Southern   960.9 KB
1960 Subway train is automatic   552.2 KB
Coffeyville, KS 1
1937 Illumination as a Type of Crossing Protection   3.0 MB
Cohoes, NY 3
1959 D&H upgrades crossing protection   626.4 KB
1962 News briefs. 1962-03   1.1 MB
1960 Signal construction steady in 1959   385.2 KB
Colchester, VA 1
1955 How to run reverse temporarily   197.6 KB
Cold Springs, OH 1
1940 Mechanical Plant Modernized   4.2 MB
Cole, MO 1
1941 Centralized Traffic Control Installed on the Missouri Pacific   3.7 MB
Colehour, IN 1
1965 News briefs. 1965-01   2.0 MB
Coleman, FL 2
1947 Annual Review and Outlook   425.1 KB
1963 News briefs. 1963-11   1.4 MB
College Park, San Jose, CA 1
1939 Trains Directed by Signal Indication at San Jose, California   4.1 MB
Collins, IA 1
1959 Signaling moderate during '58   528.6 KB
Collinwood, OH 2
1930 NYC Makes Rapid Cut-Over on Large Plant at Cleveland   1.3 MB
1964 NYC Moves CTC Point of Control   1.2 MB
Colmar, PA 1
1963 News briefs. 1963-10   497.4 KB
Colonie, NY 1
1965 News briefs. 1965-01   2.0 MB
color blindness 1
1909 Color Sense and Railway Signal Lights   1.7 MB
color light signaling 3
1951 Extension of Color-Light Signaling on the Bombay, Baroda & Central India Railway   524.0 KB
1917 Flash-Light crossing signal   906.0 KB
1924 Neon – A New Gas for Electrical Use   1.8 MB
color light signals 43
1921 A New Light Signal   1.4 MB
1924 A New Triangular Light Signal   1.7 MB
1936 Alining Signals on Curves   3.7 MB
1947 Annual Review and Outlook   425.1 KB
1947 Automatic Block With Spring Switches installed on the Georgia Railroad   851.4 KB
1958 Automatic classification yard in service on the Burlington at Chicago   2.9 MB
1947 Automatic Signaling With Spring Switches Installed on the Great Northern   734.1 KB
1935 Avoiding Light-Out Signal Failures   2.2 MB
1935 Avoiding Light-Out Signal Failures   1.2 MB
1936 Back Locks on Approach Signals   1.4 MB
1922 British Report on Light Signals   449.7 KB
1943 Centralized Traffic Control Installed on 39 Miles of the Burlington   6.1 MB
1937 Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
1949 CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
1958 DL&W-Erie joint operation is ready to go   643.6 KB
1937 Height of Light Signals   1.0 MB
1947 Hoosac Tunnel Interlocking and CTC   1.7 MB
1958 Improved signaling results from grade elimination   883.1 KB
1957 Lehigh Valley combines interlockings   404.0 KB
1917 Light Signals On CM&StP   781.9 KB
1944 Light-Type Signals Installed on the Reading   6.3 MB
1936 Lights Interfere With View of Signals   2.3 MB
1935 Mechanical Color Light Signals in England   1.3 MB
1935 New Signaling on the Route of the C&NW "400"   9.6 MB
1962 News briefs. 1962-02   1.4 MB
1962 News briefs. 1962-07   494.2 KB
1935 Night Check of Signal Lights   1.2 MB
1935 Night Intensity of Signal Lamps   2.6 MB
1939 Phantom Indications in Color-Light Signals   2.2 MB
1937 Phantom Indications of Dwarfs   1.3 MB
1921 Progress of Railroad Signaling in America   731.8 KB
1915 Red as a Danger Indication   283.5 KB
1922 Report of Committee X - Signaling Practice   1.4 MB
1965 Rhodesia has 1215 miles of CTC   949.2 KB
1937 Rock Island Installs Automatic Blocks   10.1 MB
1961 Santa Fe Signals New Main Line   913.2 KB
1913 Settled at Last   824.8 KB
1940 Signal Lens Cleaner   1.1 MB
1911 Signaling on the New York Tunnel Extension of the Pennsylvania   1.0 MB
1951 Simple Interlocking Saves Many Train Stops   370.2 KB
1958 Subway consolidates interlockings   2.2 MB
1950 Train Movements by Signal Indication On the Clinchfield Route   12.0 MB
1955 Unusual control for crossing protection   722.1 KB
color position light signals 15
1937 APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
1925 B&O Color-Position-Light Signals   3.7 MB
1950 B&O Installs All-Relay Plant   2.6 MB
1951 B&O Installs Modern Interlocking   871.3 KB
1954 CTC Moves Heavy Trains   4.1 MB
1952 CTC Pays Its Way on B&O   733.2 KB
1924 Hall Position Color Light Signal   710.8 KB
1958 Improved signaling results from grade elimination   883.1 KB
1956 Interlocking Consolidation: Three Into One in Baltimore   6.8 MB
1922 Lights vs. Arms for Railway Signaling   4.6 MB
1935 Multiple Aspect Signaling   3.3 MB
1928 Obituary: Frank P. Patenall   627.0 KB
1951 On the Baltimore & Ohio New Interlocking Speeds Trains   641.0 KB
1951 Simple Interlocking Saves Many Train Stops   370.2 KB
1927 The Color Position Light Signal (poem)   435.2 KB
color specifications 3
1949 A Century of Signal Glass Developments   4.2 MB
1935 Purple Signal Glasses   3.6 MB
1935 Purple Signal Glasses   3.3 MB
color vision 1
1909 Color Sense and Railway Signal Lights   1.7 MB
Colorado & Southern 5
1939 Checking Track Circuits From a Motor Car   837.6 KB
1935 Installation of Bond Wires   4.0 MB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1947 Territories Involved in the ICC Signaling Order   388.2 KB
1960 What’s the answer? Automatic OS   354.1 KB
Colores, WY 1
1955 CTC and cab signaling on Union Pacific   789.5 KB
Colton, CA 4
1962 Automatic Dispatching   2.1 MB
1950 CTC on Sunset Route   3.1 MB
1957 How long sidings save train time   465.2 KB
1945 Southern Pacific Installs CTC on 72 Miles of Single Track   5.6 MB
Columbia River, WA 1
1965 News briefs. 1965-09   381.7 KB
Columbia, PA 2
1938 Interlocking Changes on the Pennsylvania   4.9 MB
1937 New Signaling on Pennsylvania   1.0 MB
Columbia, SC 1
1937 Seaboard Utilizes Spring Switches   8.4 MB
Columbus & Greenville 1
1947 Territories Involved in the ICC Signaling Order   388.2 KB
Columbus, GA 2
1946 Automatic Block With Spring Switches on the Central of Georgia   5.3 MB
1959 Signaling moderate during '58   528.6 KB
Columbus, NE 1
1937 Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
Columbus, OH 8
1960 CTC signals clear automatically   1.1 MB
1945 Extensive All-Relay Interlocking Features Plug-In Relays   5.6 MB
1965 News briefs. 1965-01   2.0 MB
1955 Pennsylvania installs wayside equipment for cab signaling   745.7 KB
1965 PRR upgrades yard, improves service   1.2 MB
1956 Remote Control Converted to CTC   6.6 MB
1950 Remote Control of Center Sidings On Busy Double-Track Line   3.6 MB
1925 Traffic Reversal on Double Track by Signal Indication   1.5 MB
communication 10
1962 1962 outlook   3.0 MB
1919 Block Signaling Practice on a British Railway (Part 3)   337.3 KB
1941 Carrier Communication Equipment Installed on the Santa Fe   4.7 MB
1950 Centralized Train Dispatching   1.4 MB
1950 Increase In Train Communication Systems   2.4 MB
1956 Interlocking Phones   2.3 MB
1950 More Communications Needed With the 40-Hour Week   1.2 MB
1950 Reservations Communication System Installed On the Pennsylvania   3.9 MB
1950 Telephones at Signals   1.1 MB
1950 Unusual Trouble   3.0 MB
communication circuits 1
1935 Pole Lines for Automatic Signaling   1.6 MB
communication equipment 1
1965 Midwest RRs fight the weather   914.4 KB
communication trouble 2
1949 Communications Trouble   2.0 MB
1950 Unusual Trouble   3.0 MB
communications 1
1961 Single Cable System Proposed for Signal and Communications Circuits   808.3 KB
Communipaw, NJ 1
1915 Jersey City Terminal Interlocking   1.1 MB
compact control center 1
1958 Product news: Compact control center   231.1 KB
compact CTC machines 1
1958 Signaling to cut expenses in '58   411.4 KB
compact pushbutton dispatching 1
1964 What CTC Can Do For You   417.8 KB
compensators 2
1915 Compensation of Pipe Lines   319.6 KB
1911 The Mechanics of the Compensator   1.8 MB
computer dispatching 1
1961 Digital Computer Simulates CTC Dispatcher   2.8 MB
computer simulation of centralized traffic control 1
1962 Toronto Railway Conference – Automatic Train Operation   448.4 KB
computerization 5
1960 Applying ferrites to signal systems   1.5 MB
1960 Automation on the Russian railroads   695.9 KB
1959 How railroads use computers   339.6 KB
1956 No Waiting for Reservations   6.3 MB
1960 Planning the C&O's CLIC – The economics of data communications   1.1 MB
computerized reservations 1
1950 Reservations Communication System Installed On the Pennsylvania   3.9 MB
computers 3
1960 Computer analyzes train operation   1.2 MB
1959 Computer simulates train operation   524.0 KB
1959 How retarder controls function at Young Yard on the NYC   978.1 KB
computers in signaling 2
1964 How computers may be applied   1.2 MB
1959 How railroads use computers   339.6 KB
Concord, CA 1
1965 Japan, Sweden, England test ATO   6.3 MB
Concord, IL 1
1929 Centralized Control Used for Ends of Double Track   2.1 MB
Concord, MA 1
1951 CTC on Single Track Permits Removal of Second Main on 22.4 Miles on Boston & Maine   924.4 KB
Concord, NH 3
1951 Double Track to Single With CTC   197.9 KB
1966 News briefs. 1966-01   1.4 MB
1959 Signaling moderate during '58   528.6 KB
concrete bungalows 1
1965 Midwest RRs fight the weather   914.4 KB
Cone, L. 1
1928 Changes on the C&NW   978.4 KB
Confluence, PA 1
1961 News briefs. 1961-07   648.9 KB
Congo, MO 1
1962 News briefs. 1962-02   1.4 MB
Congress Park, Brookfield, IL 1
1947 Burlington Uses Radio on Switchers   909.1 KB
Congress Park, IL 1
1954 New Wayside and Cab Signaling   753.2 KB
Conklin, IL 1
1962 News briefs. 1962-07   494.2 KB
Conklin, NY 1
1961 News briefs. 1961-07   648.9 KB
Conmee, Ontario 1
1955 How CN increased track capacity   516.4 KB
Conneaut, OH 2
1943 CTC on the Bessemer & Lake Erie   8.7 MB
1928 Nickel Plate Installs 169 Miles of Color Light Automatics   3.6 MB
Connellsville, PA 4
1922 An Old Electric Interlocking in France   1.3 MB
1963 News briefs. 1963-10   497.4 KB
1951 P&WV Signals Entire Main Line   3.9 MB
1955 Yard operations improved by new interlocking and car retarders   621.2 KB
Consolidated Code of Operating Rules 1
1960 Fourteen RRs adopt new operating code   945.4 KB
consolidated dispatching 6
1962 Centralization – Dispatch Circuits Are Changing   1.3 MB
1965 Merging divisions require changing circuits   339.6 KB
1958 MP consolidates CTC machines   797.2 KB
1964 NYC Moves CTC Point of Control   1.2 MB
1958 RS&C 50th anniversary: Looking ahead   652.9 KB
1964 What CTC Can Do For You   417.8 KB
consolidation of interlocking plants 1
1962 1962 outlook   3.0 MB
consolidation of interlocking towers 1
1957 More automation for signaling in 1957   1.2 MB
construction 1
1922 Signal Construction on the Santa Fe   797.6 KB
Contentnea, NC 1
1961 News briefs. 1961-04   1.5 MB
continuous inductive receiver coils 1
1950 New Developments   16.9 MB
control machines 1
1962 Control Panels   243.4 KB
controlled automatic block signaling 2
1947 Developments in Signaling   498.7 KB
1947 Milwaukee Installs Block System on 98 Miles   1.2 MB
controlled manual block 2
1915 Extension of New Haven signals   684.8 KB
1909 First Annual Report of the Block Signal and Train Control Board to the Interstate Commerce Commission   4.0 MB
controlled manual block signaling 4
1947 Annual Review and Outlook   425.1 KB
1924 Controlled Manual Block Signaling With Train Control   5.5 MB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1911 Summary of Recent Progress in Signaling   4.4 MB
Conway, PA 1
1957 Automation yard control on the Pennsylvania   882.0 KB
Coon Rapids, IA 1
1964 Milwaukee installs its first microwave   277.4 KB
Coraopolis, PA 1
1955 CTC enables P&LE to remove fourth main track   515.3 KB
Corbin, KY 4
1958 CTC saves time and money for the Louisville & Nashville   446.6 KB
1963 News briefs. 1963-04   889.2 KB
1964 News briefs. 1964-02   981.5 KB
1965 News briefs. 1965-01   2.0 MB
Corcoran, J. J. 1
1940 Personal: Changes on the New York Central   2.2 MB
Corcoran, L. L. 1
1937 Changes on the New York Central Lines   2.3 MB
Corfu, NY 1
1943 Modernization of Automatic Signaling On the New York Central   9.8 MB
Corlette, WY 1
1955 CTC and cab signaling on Union Pacific   789.5 KB
Corliss, WI 1
1918 Record Snowstorms Paralyze Transportation   424.7 KB
Corning Glass Center 1
1951 Glass Library and Museum   319.8 KB
Corning Glass Works 5
1949 A Century of Signal Glass Developments   4.2 MB
1951 Glass Library and Museum   319.8 KB
1915 Glass Standardization for Railway Signaling   1.0 MB
1915 Red as a Danger Indication   283.5 KB
1916 Service Record of Position-Light Signals   580.8 KB
Corning, NY 3
1958 DL&W-Erie joint operation is ready to go   643.6 KB
1951 Glass Library and Museum   319.8 KB
1960 Signaling enters automation   630.6 KB
Cornwall, NY 1
1940 CTC on the New York, Ontario & Western   8.2 MB
Cornwall, Ontario 1
1957 Seaway diverts CN mainline   532.3 KB
Corona, CA 1
1922 Signal Construction on the Santa Fe   797.6 KB
Corporal, CA 1
1959 News briefs. 1959-05   506.5 KB
Corry, PA 1
1962 News briefs. 1962-03   1.1 MB
Corsicana, TX 1
1957 Why Cotton Belt installed CTC on entire main line   914.0 KB
Cortland, NY 1
1951 Automatic-Manual Control for Gates at Five Crossings   418.2 KB
Cortlandt St., New York, NY 1
1917 New York Elevated Signal Improvements   418.8 KB
Corwith, IL 2
1917 New Plant in Chicago Terminal District   591.7 KB
1926 Train Control Progress in 1925   3.1 MB
Cory, IL 1
1947 All-Relay Plant on the C&EI at Danville, Ill   915.6 KB
Cos Cob, CT 1
1915 Extension of New Haven signals   684.8 KB
Coteau, Quebec 1
1934 Desk-Lever Interlocking Installed on Canadian National   1.2 MB
Cotley Jct., MA 1
1958 Remote control saves money   868.5 KB
Cotton Belt 3
1946 CTC on 121 Miles of the Cotton Belt   6.4 MB
1954 Why Cotton Belt Installed CTC On 429 Miles of Single Track   4.0 MB
1957 Why Cotton Belt installed CTC on entire main line   914.0 KB
Cotton Hill, WV 1
1921 A New Idea in Traffic Locking On the C&O   1.7 MB
Cottonwood, UT 1
1955 One CTC Machine Replaces Three   451.9 KB
Council Bluffs, IA 8
1965 C&NW’s ATC uses 100 cps AC   901.0 KB
1958 CTC Handles 15 More Trains   2.2 MB
1964 Milwaukee installs its first microwave   277.4 KB
1963 News briefs. 1963-01   951.3 KB
1925 Preliminary Report on C&NW Train Control   929.6 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1924 Three Train Control Contracts Let   1.9 MB
1926 Train Control Progress in 1925   3.1 MB
Covington, KY 1
1930 C&O Installs New Interlocking and Either-Direction Signaling   5.0 MB
Covington, VA 1
1935 Centralized Traffic Control on the Chesapeake & Ohio   6.2 MB
Cow Creek, KY 1
1962 News briefs. 1962-07   494.2 KB
Coxton, PA 1
1957 Lehigh Valley combines interlockings   404.0 KB
Cranbrook, British Columbia 1
1947 Canadian Pacific Installs Absolute Permissive Block   774.8 KB
Crane, MO 1
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
Crawford, WI 1
1925 CB&Q Controls Switches Remotely   3.7 MB
Crescent Lake, OR 1
1962 Automatic Dispatching   2.1 MB
Crescent, NY 3
1955 CTC reduces operating expenses   431.8 KB
1960 News briefs. 1960-02   995.4 KB
1960 News briefs. 1960-06   1.2 MB
Crestline, OH 2
1965 News briefs. 1965-02   1.9 MB
1935 Respacing Automatics on the Pennsylvania   1.8 MB
Crestwood, NY 1
1949 New York Central Installs Interlocking   3.3 MB
Crewe, VA 2
1960 News briefs. 1960-03   1.9 MB
1960 News briefs. 1960-05   1.0 MB
crewless freight trains 1
1962 News briefs. 1962-09   829.8 KB
crewless train 1
1962 Automatic Freight Train is Crewless   1.1 MB
Cromwell, CT 1
1909 Train staff installation on the NYNH&H   1.0 MB
Crookton, AZ 2
1961 News briefs. 1961-06   725.8 KB
1961 Santa Fe Signals New Main Line   913.2 KB
crossbuck 1
1965 Crossing protection gets new look   490.1 KB
crossing 1
1930 New Type Rail Crossing Uses Turntable Principle   964.5 KB
crossing barriers 3
1935 Auto Stop Installed on C&NW   7.2 MB
1937 Barriers on the Michigan Central   7.0 MB
1937 Highway Traffic Retarding Barriers on the Boston & Maine   8.0 MB
crossing bells 1
1935 Crossing Bells at Flasher Signals   1.9 MB
crossing cut-outs 1
1937 Push-Button Cut-Outs   989.3 KB
crossing diamond 1
1922 Improvements in the Eymon Continuous Rail Crossing   950.8 KB
crossing flashers 3
1935 Alining Flashers   3.2 MB
1935 Circuit for Flashing Light Signals   3.5 MB
1935 Circuit for Flashing Light Signals   3.6 MB
crossing gates 1
1947 Crossing Gate   315.9 KB
crossing indicators 3
1955 Crossing gate protection with indicators for train movements   432.4 KB
1949 Crossing Protection   1.1 MB
1958 What's the answer? Crossing indicators   509.4 KB
crossing markings 1
1962 Identifying Emblems   326.9 KB
crossing recorders 1
1951 South Shore Line Records Gate Operations   375.1 KB
crossing watchmen 13
1951 Automatic-Manual Control for Gates at Five Crossings   418.2 KB
1959 B&M takes up track and installs traffic control, gates and flashers   745.0 KB
1955 Crossing protection for 16 streets   371.1 KB
1947 Crossing Protection in Gary, Indiana   1.6 MB
1958 Crossing protection program saves 59%   553.4 KB
1960 Crossings are safer after 10 years   454.4 KB
1959 Fewer wayside observers makes automatic hazard detection necessary   1.1 MB
1947 Highway Crossing Protection Installed by Several Railroads in Gary, IndianaR   1.2 MB
1960 News briefs. 1960-03   1.9 MB
1959 North Western installs automatic gates at nine crossings   699.9 KB
1960 Signal construction steady in 1959   385.2 KB
1959 Signaling moderate during '58   528.6 KB
1955 Unusual control for crossing protection   722.1 KB
crossings 4
1917 Flash Lights on the P&R   920.4 KB
1917 Flash-Light crossing signal   906.0 KB
1921 Progress of Railroad Signaling in America   731.8 KB
1952 Train Time Saved By New Interlocking and Automatic Protection at 15 Street Crossings in Lima, Ohio   4.4 MB
Croton, NY 3
1961 News briefs. 1961-07   648.9 KB
1962 News briefs. 1962-02   1.4 MB
1936 NYC Modernizes Electric Interlocking   9.0 MB
Croton-on-Hudson, NY 1
1963 News briefs. 1963-01   951.3 KB
Crown Hill, WV 1
1960 News briefs. 1960-06   1.2 MB
Crowsnest, Alberta 1
1947 Canadian Pacific Installs Absolute Permissive Block   774.8 KB
Crystal Lake, IL 4
1959 C&NW has system-wide car reporting   702.6 KB
1958 Crossing protection program saves 59%   553.4 KB
1953 Gates at Three Crossings   5.3 MB
1965 Midwest RRs fight the weather   914.4 KB
CTC simulation 1
1964 What CTC Can Do For You   417.8 KB
Cumberland, MD 5
1922 An Old Electric Interlocking in France   1.3 MB
1959 News briefs. 1959-05   506.5 KB
1960 News briefs. 1960-11   875.5 KB
1961 News briefs. 1961-07   648.9 KB
1957 Traffic signals and crossing gates coordinated in Cumberland, MD   730.3 KB
Cumminsville, OH 1
1934 Electric Interlocking on the B&O   1.1 MB
Curtis, OK 1
1960 News briefs. 1960-03   1.9 MB
cut-over 1
1956 Interlocking Phones   2.3 MB
Cutbank, MT 1
1956 When Dispatchers Move ... Carrier Saves Wire Pair   1.3 MB

Browse articles by keyword:

Browse articles by year: