NOTE:
Although all of these digitized articles are 60 or more years old, and likely have minimal commercial value today, the reader should bear in mind that material dated after 1923 remains under copyright by Simmons-Boardman Publishing.
These articles and the information contained therein may be freely reproduced or used in printed or electronic form for non-commercial or educational purposes, provided the copyright holder and original author (if known) are acknowledged, and provided that such publication also refers readers to the original document on this site.
Simply making interesting material available to those who share my interest in the railway signal systems of the past has been my sole objective in this long project.
1965 | B&O would have used radio orders 573.9 KB |
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1947 | Railroads Request Relief from the ICC Signal Order 365.7 KB |
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1960 | News briefs. 1960-03 1.9 MB |
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1962 | News briefs. 1962-02 1.4 MB |
1964 | Automatic identity systems proposed 736.1 KB |
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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 |
1963 | News briefs. 1963-03 790.6 KB |
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1923 | Cabin Interlockings for Crossings 1.5 MB |
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1940 | CTC on the New York, Ontario & Western 8.2 MB |
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1940 | Cadweld (Thermex) Signal Bonds 996.4 KB |
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1915 | Electric Interlocking at Davis, Illinois 241.3 KB |
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1937 | Ohio Flood Damages Signaling 9.7 MB |
1949 | Signaling Adapted to Traffic On the Rock Island 5.2 MB |
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1962 | News briefs. 1962-04 1.2 MB |
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1962 | News briefs. 1962-10 461.7 KB |
1958 | CP consolidates interlockings 2.0 MB |
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1964 | News briefs. 1964-10 768.6 KB |
1964 | News briefs. 1964-08 811.5 KB |
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1965 | News briefs. 1965-05 1.4 MB |
1949 | 625 Miles of CTC in one Stretch 7.9 MB |
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1964 | News briefs. 1964-04 1.3 MB |
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1964 | News briefs. 1964-10 768.6 KB |
1947 | All-Relay Interlockings On the RF&P 1.3 MB |
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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 |
1947 | Drawbridge Interlocking on the Elgin, Joliet & Eastern 647.3 KB |
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1922 | Signal Construction on the Santa Fe 797.6 KB |
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1956 | Interlocking Consolidation: Three Into One in Baltimore 6.8 MB |
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1960 | News briefs. 1960-01 1.1 MB |
1958 | Programmed interlocking control 337.6 KB |
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1937 | Delaware River Bridge Signaling 13.9 MB |
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1924 | New Reading Interlocking at Camden 3.4 MB |
1965 | News briefs. 1965-01 2.0 MB |
1960 | News briefs. 1960-07 845.4 KB |
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1925 | Relieving Congestion by Signals 2.5 MB |
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1964 | News briefs. 1964-10 768.6 KB |
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1931 | Report on Milwaukee-Omaha Collision 1.5 MB |
1958 | DL&W-Erie joint operation is ready to go 643.6 KB |
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1947 | ICC Holds Signal Hearing 507.5 KB |
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1947 | Railroads Request Relief from the ICC Signal Order 365.7 KB |
1947 | Railroads Request Relief from the ICC Signal Order 365.7 KB |
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1933 | Economics of Modern Signaling 2.1 MB |
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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 |
1964 | What CTC Can Do For You 417.8 KB |
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1963 | News briefs. 1963-03 790.6 KB |
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1959 | Pushbutton console for CTC 785.3 KB |
1963 | S&C Role Is Basic To Bison Yard 3.0 MB |
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1963 | Solid State Devices 938.4 KB |
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1948 | Car Numbers “Grabbed” by Voice Recorder 783.1 KB |
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1949 | A Mile-Stone In Signaling 1.2 MB |
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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 |
1959 | C&NW has system-wide car reporting 702.6 KB |
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1938 | Accident Involving Rule 93 1.5 MB |
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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 |
1960 | News briefs. 1960-01 1.1 MB |
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1960 | News briefs. 1960-02 995.4 KB |
1960 | News briefs. 1960-03 1.9 MB |
1960 | News briefs. 1960-06 1.2 MB |
1911 | Signaling on the Illinois Traction System 1.5 MB |
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1963 | News briefs. 1963-12 429.2 KB |
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1963 | News briefs. 1963-05 720.2 KB |
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1962 | News briefs. 1962-09 829.8 KB |
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1962 | 1962 outlook 3.0 MB |
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1947 | Territories Involved in the ICC Signaling Order 388.2 KB |
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1911 | Interlocking on the North Western Terminal 7.6 MB |
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1925 | Maintenance on C&NW Terminals 12.5 MB |
1911 | Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB |
1961 | Railroad Will Pay For CTC Out Of Accrued Savings 842.9 KB |
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1965 | Merging divisions require changing circuits 339.6 KB |
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1941 | Carrier Communication Equipment Installed on the Santa Fe 4.7 MB |
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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 |
1949 | 625 Miles of CTC in one Stretch 7.9 MB |
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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 |
1962 | Centralization – Dispatch Circuits Are Changing 1.3 MB |
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1960 | News briefs. 1960-06 1.2 MB |
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1958 | Crossing protection program saves 59% 553.4 KB |
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1960 | Crossings are safer after 10 years 454.4 KB |
1951 | Special Protection Problems Solved With Gates and Flashers 1.5 MB |
1954 | New Orleans Passenger Terminal 4.7 MB |
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1960 | News briefs. 1960-09 756.9 KB |
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1963 | GN Radio Works in Tunnel 1.1 MB |
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1966 | News briefs. 1966-01 1.4 MB |
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1965 | News briefs. 1965-05 1.4 MB |
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1944 | CTC On 185 Miles on Canadian National 12.3 MB |
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1964 | News briefs. 1964-08 811.5 KB |
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1964 | Train Describers: A step toward ATI 2.1 MB |
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1962 | News briefs. 1962-06 989.1 KB |
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1940 | Plug Couplers for Relays and Signals 1.3 MB |
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1948 | Car Numbers “Grabbed” by Voice Recorder 783.1 KB |
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1915 | Extension of New Haven signals 684.8 KB |
1922 | Signal Construction on the Santa Fe 797.6 KB |
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1963 | News briefs. 1963-11 1.4 MB |
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1956 | Remote Control Converted to CTC 6.6 MB |
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1964 | News briefs. 1964-10 768.6 KB |
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1947 | Railroads Request Relief from the ICC Signal Order 365.7 KB |
1946 | Automatic Block With Spring Switches on the Central of Georgia 5.3 MB |
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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 |
1951 | A History of Flashing-Light Crossing Signals- What They Are and Why 570.5 KB |
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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 |
1943 | Electric Interlocking Installed On IC 12.8 MB |
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1963 | News briefs. 1963-10 497.4 KB |
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1957 | Two interlockings save time and money 547.8 KB |
1915 | Victoria Jubilee Bridge Protection 570.0 KB |
1956 | Centralia Has Protection of All Crossings 6.7 MB |
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1960 | Crossings are safer after 10 years 454.4 KB |
1965 | News briefs. 1965-09 381.7 KB |
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1964 | What CTC Can Do For You 417.8 KB |
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1951 | Simple Interlocking Saves Many Train Stops 370.2 KB |
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1940 | Plug Couplers for Relays and Signals 1.3 MB |
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1965 | Merging divisions require changing circuits 339.6 KB |
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1961 | News briefs. 1961-06 725.8 KB |
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1921 | Educational Meetings On the Illinois Central 616.5 KB |
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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 |
1964 | Train Describers: A step toward ATI 2.1 MB |
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1963 | News briefs. 1963-01 951.3 KB |
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1964 | Individual radios carried by crewmen can aid yard work 549.7 KB |
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1921 | New Interlocking on the Boston Elevated 3.3 MB |
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1947 | Remote Control on Baltimore & Ohio 595.8 KB |
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1919 | Electric Interlocking at Charlottesville,VA 530.2 KB |
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1923 | C&O Installs Signaling With Train Control 5.8 MB |
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1928 | C&O Signaling and Train Control Facilitate Operation 4.1 MB |
1965 | News briefs. 1965-02 1.9 MB |
1949 | New Interlocking at Chattanooga Terminal 5.2 MB |
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1947 | Construction of Towers 213.3 KB |
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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 |
1923 | News of the Month (July 1923) 1.9 MB |
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1964 | News briefs. 1964-07 833.0 KB |
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1965 | News briefs. 1965-06 1.2 MB |
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1960 | News briefs. 1960-02 995.4 KB |
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1931 | French Railways Adopt Color-Light Signals 1.3 MB |
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1924 | Electric Interlockings On the French Northern 4.4 MB |
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1955 | How to run reverse temporarily 197.6 KB |
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1965 | News briefs. 1965-10 1.1 MB |
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1961 | News briefs. 1961-06 725.8 KB |
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1962 | News briefs. 1962-01 986.8 KB |
1963 | News briefs. 1963-06 961.3 KB |
1932 | An Early Automatic Interlocking 411.4 KB |
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1934 | New Signaling on the Reading 631.4 KB |
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1916 | Service Record of Position-Light Signals 580.8 KB |
1937 | Spring Switch at Branch Line Terminus 5.0 MB |
1953 | CTC Replaces Manual Block On Single Track 9.0 MB |
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1963 | News briefs. 1963-05 720.2 KB |
1955 | CTC and cab signaling on Union Pacific 789.5 KB |
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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 |
1964 | News briefs. 1964-02 981.5 KB |
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1914 | All Electric Interlocking at Joliet 1.5 MB |
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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 |
1931 | Chicago & Illinois Midland Installs Electric Interlocking 2.5 MB |
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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 |
1916 | AC Signaling for Chicago Terminals 585.7 KB |
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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 |
1959 | North Western installs automatic gates at nine crossings 699.9 KB |
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1932 | B&OCT Stops Theft of Coal with Four Automatic Plants at Chicago Heights, IL 1.9 MB |
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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 |
1938 | B&OCT Installs Route Interlocking 8.9 MB |
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1923 | News of the Month (November 1923) 1.8 MB |
1928 | Rock Island Completes 33-Lever Electric Interlocker 2.8 MB |
1954 | Automatic Gates Increase Safety 3.2 MB |
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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 |
1926 | A New Development in Chromatic Light Signals 1.2 MB |
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1944 | Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways 8.6 MB |
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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 |
1929 | Automatic Gauntlet Signals Installed on the South Shore 1.9 MB |
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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 |
1947 | Burlington Uses Radio on Switchers 909.1 KB |
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1956 | Automatic Crossing Gates on CTA Are Interconnected with Street Traffic Lights 5.1 MB |
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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 |
1932 | Burlington Installs Extensive New Electric Interlocking 3.6 MB |
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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 |
1932 | A Detector Bar Fails 1.5 MB |
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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 |
1910 | Electric Drawbridge Interlocking 1.2 MB |
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1947 | ICC Signal Hearings 179.7 KB |
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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 |
1947 | ICC Signal Hearings 179.7 KB |
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1960 | News briefs. 1960-09 756.9 KB |
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1930 | Signal Indications Direct Trains on the Paducah & Illinois 5.0 MB |
1927 | Santa Fe Is Operating Trains by Cab Signaling With Train Control 6.4 MB |
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1926 | Train Control Progress in 1925 3.1 MB |
1945 | Milwaukee Installs CTC On 51 Miles 6.5 MB |
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1959 | News briefs. 1959-05 506.5 KB |
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1961 | News briefs. 1961-10 1.0 MB |
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1960 | News briefs. 1960-03 1.9 MB |
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1960 | Signaling enters automation 630.6 KB |
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1963 | News briefs. 1963-12 429.2 KB |
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1962 | News briefs. 1962-06 989.1 KB |
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1915 | Red as a Danger Indication 283.5 KB |
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1947 | Choice of Interlocking Control Machines 266.5 KB |
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1933 | Cincinnati Terminal Interlocking 4.1 MB |
1937 | Ohio Flood Damages Signaling 9.7 MB |
1911 | A Summary of Signaling Practice 3.6 MB |
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1920 | Modern Telegraph Office at Indianapolis 3.1 MB |
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1960 | News briefs. 1960-11 875.5 KB |
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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 |
1951 | B&O Installs Modern Interlocking 871.3 KB |
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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 |
1939 | Safety and Design of Signal Circuits 5.0 MB |
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1962 | Automatic Dispatching 2.1 MB |
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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 |
1921 | A New Idea in Traffic Locking On the C&O 1.7 MB |
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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 |
1941 | Pennsylvania Installs CTC at Louisville, KY 4.9 MB |
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1947 | Railroads Request Relief from the ICC Signal Order 365.7 KB |
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1954 | New Orleans Passenger Terminal 4.7 MB |
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1955 | News briefs. 1955-08 830.4 KB |
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1913 | Illinois Central Alternating Current Signaling 2.5 MB |
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1963 | News briefs. 1963-06 961.3 KB |
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1958 | Central opens Young Yard 2.5 MB |
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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 |
1959 | Britain's first automatic yard 312.0 KB |
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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 |
1949 | Controlled Overlaps for Single-Track APB Signaling 1.5 MB |
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1945 | William H. Claus (promotion) 425.7 KB |
1940 | Signal Lens Cleaner 1.1 MB |
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1958 | Interlocking saves time and money for the Belt Railway of Chicago 2.0 MB |
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1940 | Interlockings Installed at Two Crossings 6.5 MB |
1964 | News briefs. 1964-05 1.0 MB |
1957 | Relay Interlocking Saves Time at Yard Entrances 2.5 MB |
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1915 | The Push Button Interlocking Plant at Clearing Yard 351.3 KB |
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1955 | New Cleveland Transit System 917.8 KB |
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1962 | News briefs. 1962-07 494.2 KB |
1929 | Elimination of Lock Rods 947.9 KB |
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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 |
1955 | New Cleveland Transit System 917.8 KB |
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1947 | Choice of Interlocking Control Machines 266.5 KB |
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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 |
1928 | C&O Signaling and Train Control Facilitate Operation 4.1 MB |
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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 |
1960 | News briefs. 1960-05 1.0 MB |
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1955 | News briefs. 1955-08 830.4 KB |
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1923 | News of the Month (July 1923) 1.9 MB |
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1953 | CTC Keeps Trains Moving on Long Grades 6.3 MB |
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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 |
1913 | New Block Signaling on the North-Western 1.8 MB |
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1911 | Interlocking on the North Western Terminal 7.6 MB |
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1925 | Maintenance on C&NW Terminals 12.5 MB |
1911 | Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB |
1958 | Crossing protection program saves 59% 553.4 KB |
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1934 | Economy in Operation of Track Circuits 554.1 KB |
1965 | Midwest RRs fight the weather 914.4 KB |
1948 | CTC Keeps ‘em Rollin’ on C&EI 2.1 MB |
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1917 | Wigwag signals on an Electric Line 239.2 KB |
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1958 | Six editors in 50 years 253.5 KB |
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1945 | CTC West of the Pecos On the Santa Fe 4.6 MB |
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1961 | News briefs. 1961-12 978.0 KB |
1961 | Check Switch Heaters Now 297.3 KB |
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1918 | New Electric Interlocking at Clyde, IL 418.7 KB |
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1960 | T&P moves CTC machine 78 miles 423.0 KB |
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1957 | One Machine Controls Two Plants 2.2 MB |
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1965 | News briefs. 1965-09 381.7 KB |
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1937 | Remote Control on the Pennsylvania 5.2 MB |
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1947 | Canadian Pacific Installs Absolute Permissive Block 774.8 KB |
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1964 | News briefs. 1964-12 981.5 KB |
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1965 | News briefs. 1965-10 1.1 MB |
1947 | Application of Code Principles to Signaling 406.6 KB |
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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 |
1935 | Aerial Cable Versus Open Line 3.9 MB |
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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 |
1956 | Train Operations When CTC Fails 3.5 MB |
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1956 | Train Operations When CTC Fails 2.4 MB |
1950 | New Developments 16.9 MB |
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1940 | Coded Track Control 2.5 MB |
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1940 | New Code Transmitter 2.1 MB |
1940 | Coded Track Control 2.5 MB |
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1941 | P4 Code-Following Relay 1.1 MB |
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1947 | Application of Code Principles to Signaling 406.6 KB |
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1954 | Modern Signaling in New Subways in Stockholm, Sweden 6.7 MB |
1937 | New Devices- March 1937 18.1 MB |
1961 | News briefs. 1961-04 1.5 MB |
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1943 | A Review of 1942 2.9 MB |
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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 |
1947 | CTC Down by the Ohio 2.7 MB |
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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 |
1950 | New Developments 16.9 MB |
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1937 | Illumination as a Type of Crossing Protection 3.0 MB |
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1959 | D&H upgrades crossing protection 626.4 KB |
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1962 | News briefs. 1962-03 1.1 MB |
1960 | Signal construction steady in 1959 385.2 KB |
1955 | How to run reverse temporarily 197.6 KB |
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1940 | Mechanical Plant Modernized 4.2 MB |
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1965 | News briefs. 1965-01 2.0 MB |
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1947 | Annual Review and Outlook 425.1 KB |
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1963 | News briefs. 1963-11 1.4 MB |
1959 | Signaling moderate during '58 528.6 KB |
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1930 | NYC Makes Rapid Cut-Over on Large Plant at Cleveland 1.3 MB |
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1964 | NYC Moves CTC Point of Control 1.2 MB |
1963 | News briefs. 1963-10 497.4 KB |
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1965 | News briefs. 1965-01 2.0 MB |
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1909 | Color Sense and Railway Signal Lights 1.7 MB |
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1951 | Extension of Color-Light Signaling on the Bombay, Baroda & Central India Railway 524.0 KB |
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1917 | Flash-Light crossing signal 906.0 KB |
1924 | Neon – A New Gas for Electrical Use 1.8 MB |
1937 | APB, Remote Control, and CTC on the Baltimore & Ohio 11.9 MB |
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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 |
1949 | A Century of Signal Glass Developments 4.2 MB |
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1935 | Purple Signal Glasses 3.6 MB |
1935 | Purple Signal Glasses 3.3 MB |
1909 | Color Sense and Railway Signal Lights 1.7 MB |
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1939 | Checking Track Circuits From a Motor Car 837.6 KB |
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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 |
1955 | CTC and cab signaling on Union Pacific 789.5 KB |
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1962 | Automatic Dispatching 2.1 MB |
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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 |
1965 | News briefs. 1965-09 381.7 KB |
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1938 | Interlocking Changes on the Pennsylvania 4.9 MB |
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1937 | New Signaling on Pennsylvania 1.0 MB |
1937 | Seaboard Utilizes Spring Switches 8.4 MB |
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1947 | Territories Involved in the ICC Signaling Order 388.2 KB |
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1946 | Automatic Block With Spring Switches on the Central of Georgia 5.3 MB |
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1959 | Signaling moderate during '58 528.6 KB |
1960 | CTC signals clear automatically 1.1 MB |
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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 |
1962 | 1962 outlook 3.0 MB |
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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 |
1935 | Pole Lines for Automatic Signaling 1.6 MB |
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1965 | Midwest RRs fight the weather 914.4 KB |
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1949 | Communications Trouble 2.0 MB |
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1950 | Unusual Trouble 3.0 MB |
1915 | Jersey City Terminal Interlocking 1.1 MB |
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1958 | Product news: Compact control center 231.1 KB |
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1958 | Signaling to cut expenses in '58 411.4 KB |
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1964 | What CTC Can Do For You 417.8 KB |
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1915 | Compensation of Pipe Lines 319.6 KB |
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1911 | The Mechanics of the Compensator 1.8 MB |
1961 | Digital Computer Simulates CTC Dispatcher 2.8 MB |
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1962 | Toronto Railway Conference – Automatic Train Operation 448.4 KB |
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1960 | Applying ferrites to signal systems 1.5 MB |
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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 |
1960 | Computer analyzes train operation 1.2 MB |
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1959 | Computer simulates train operation 524.0 KB |
1959 | How retarder controls function at Young Yard on the NYC 978.1 KB |
1964 | How computers may be applied 1.2 MB |
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1959 | How railroads use computers 339.6 KB |
1965 | Japan, Sweden, England test ATO 6.3 MB |
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1951 | Double Track to Single With CTC 197.9 KB |
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1966 | News briefs. 1966-01 1.4 MB |
1959 | Signaling moderate during '58 528.6 KB |
1965 | Midwest RRs fight the weather 914.4 KB |
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1928 | Changes on the C&NW 978.4 KB |
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1961 | News briefs. 1961-07 648.9 KB |
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1962 | News briefs. 1962-02 1.4 MB |
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1947 | Burlington Uses Radio on Switchers 909.1 KB |
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1954 | New Wayside and Cab Signaling 753.2 KB |
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1962 | News briefs. 1962-07 494.2 KB |
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1961 | News briefs. 1961-07 648.9 KB |
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1955 | How CN increased track capacity 516.4 KB |
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1943 | CTC on the Bessemer & Lake Erie 8.7 MB |
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1928 | Nickel Plate Installs 169 Miles of Color Light Automatics 3.6 MB |
1922 | An Old Electric Interlocking in France 1.3 MB |
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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 |
1960 | Fourteen RRs adopt new operating code 945.4 KB |
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1962 | Centralization – Dispatch Circuits Are Changing 1.3 MB |
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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 |
1962 | 1962 outlook 3.0 MB |
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1957 | More automation for signaling in 1957 1.2 MB |
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1922 | Signal Construction on the Santa Fe 797.6 KB |
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1961 | News briefs. 1961-04 1.5 MB |
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1950 | New Developments 16.9 MB |
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1962 | Control Panels 243.4 KB |
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1947 | Developments in Signaling 498.7 KB |
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1947 | Milwaukee Installs Block System on 98 Miles 1.2 MB |
1947 | Annual Review and Outlook 425.1 KB |
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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 |
1957 | Automation yard control on the Pennsylvania 882.0 KB |
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1964 | Milwaukee installs its first microwave 277.4 KB |
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1955 | CTC enables P&LE to remove fourth main track 515.3 KB |
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1958 | CTC saves time and money for the Louisville & Nashville 446.6 KB |
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1963 | News briefs. 1963-04 889.2 KB |
1964 | News briefs. 1964-02 981.5 KB |
1965 | News briefs. 1965-01 2.0 MB |
1940 | Personal: Changes on the New York Central 2.2 MB |
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1937 | Changes on the New York Central Lines 2.3 MB |
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1955 | CTC and cab signaling on Union Pacific 789.5 KB |
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1918 | Record Snowstorms Paralyze Transportation 424.7 KB |
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1951 | Glass Library and Museum 319.8 KB |
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1949 | A Century of Signal Glass Developments 4.2 MB |
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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 |
1958 | DL&W-Erie joint operation is ready to go 643.6 KB |
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1951 | Glass Library and Museum 319.8 KB |
1960 | Signaling enters automation 630.6 KB |
1940 | CTC on the New York, Ontario & Western 8.2 MB |
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1957 | Seaway diverts CN mainline 532.3 KB |
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1922 | Signal Construction on the Santa Fe 797.6 KB |
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1959 | News briefs. 1959-05 506.5 KB |
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1962 | News briefs. 1962-03 1.1 MB |
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1957 | Why Cotton Belt installed CTC on entire main line 914.0 KB |
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1951 | Automatic-Manual Control for Gates at Five Crossings 418.2 KB |
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1917 | New York Elevated Signal Improvements 418.8 KB |
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1917 | New Plant in Chicago Terminal District 591.7 KB |
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1926 | Train Control Progress in 1925 3.1 MB |
1947 | All-Relay Plant on the C&EI at Danville, Ill 915.6 KB |
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1915 | Extension of New Haven signals 684.8 KB |
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1958 | Remote control saves money 868.5 KB |
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1946 | CTC on 121 Miles of the Cotton Belt 6.4 MB |
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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 |
1921 | A New Idea in Traffic Locking On the C&O 1.7 MB |
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1955 | One CTC Machine Replaces Three 451.9 KB |
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1965 | C&NW’s ATC uses 100 cps AC 901.0 KB |
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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 |
1962 | News briefs. 1962-07 494.2 KB |
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1957 | Lehigh Valley combines interlockings 404.0 KB |
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1947 | Canadian Pacific Installs Absolute Permissive Block 774.8 KB |
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1947 | Railroads Request Relief from the ICC Signal Order 365.7 KB |
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1925 | CB&Q Controls Switches Remotely 3.7 MB |
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1962 | Automatic Dispatching 2.1 MB |
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1955 | CTC reduces operating expenses 431.8 KB |
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1960 | News briefs. 1960-02 995.4 KB |
1960 | News briefs. 1960-06 1.2 MB |
1965 | News briefs. 1965-02 1.9 MB |
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1935 | Respacing Automatics on the Pennsylvania 1.8 MB |
1949 | New York Central Installs Interlocking 3.3 MB |
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1960 | News briefs. 1960-03 1.9 MB |
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1960 | News briefs. 1960-05 1.0 MB |
1962 | News briefs. 1962-09 829.8 KB |
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1962 | Automatic Freight Train is Crewless 1.1 MB |
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1909 | Train staff installation on the NYNH&H 1.0 MB |
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1961 | News briefs. 1961-06 725.8 KB |
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1961 | Santa Fe Signals New Main Line 913.2 KB |
1965 | Crossing protection gets new look 490.1 KB |
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1930 | New Type Rail Crossing Uses Turntable Principle 964.5 KB |
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1935 | Auto Stop Installed on C&NW 7.2 MB |
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1937 | Barriers on the Michigan Central 7.0 MB |
1937 | Highway Traffic Retarding Barriers on the Boston & Maine 8.0 MB |
1935 | Crossing Bells at Flasher Signals 1.9 MB |
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1937 | Push-Button Cut-Outs 989.3 KB |
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1922 | Improvements in the Eymon Continuous Rail Crossing 950.8 KB |
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1935 | Alining Flashers 3.2 MB |
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1935 | Circuit for Flashing Light Signals 3.5 MB |
1935 | Circuit for Flashing Light Signals 3.6 MB |
1947 | Crossing Gate 315.9 KB |
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1955 | Crossing gate protection with indicators for train movements 432.4 KB |
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1949 | Crossing Protection 1.1 MB |
1958 | What's the answer? Crossing indicators 509.4 KB |
1962 | Identifying Emblems 326.9 KB |
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1951 | South Shore Line Records Gate Operations 375.1 KB |
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1951 | Automatic-Manual Control for Gates at Five Crossings 418.2 KB |
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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 |
1917 | Flash Lights on the P&R 920.4 KB |
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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 |
1961 | News briefs. 1961-07 648.9 KB |
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1962 | News briefs. 1962-02 1.4 MB |
1936 | NYC Modernizes Electric Interlocking 9.0 MB |
1963 | News briefs. 1963-01 951.3 KB |
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1960 | News briefs. 1960-06 1.2 MB |
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1947 | Canadian Pacific Installs Absolute Permissive Block 774.8 KB |
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1959 | C&NW has system-wide car reporting 702.6 KB |
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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 |
1964 | What CTC Can Do For You 417.8 KB |
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1922 | An Old Electric Interlocking in France 1.3 MB |
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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 |
1934 | Electric Interlocking on the B&O 1.1 MB |
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1960 | News briefs. 1960-03 1.9 MB |
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1956 | Interlocking Phones 2.3 MB |
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