Railway Signaling: R

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.

Learn more about this collection.

"RG" Tower, Philadelphia, PA 1

1961	Railroad Will Pay For CTC Out Of Accrued Savings 842.9 KB

"Royal Blue" 1

1936	Train Control on the B&O Diesel 2.6 MB

Race St., Philadelphia, PA 1

1964	Interlocking: New Solid State Coding System Is Fast 1.7 MB

Racine, WI 1

1954	Automatic Gates Increase Safety 3.2 MB

Raddle Jct., IL 1

1938	CTC on the Missouri Pacific 5.3 MB

Raddle, IL 1

1954	CTC Increases Capacity of Double Track 4.2 MB

Radford, VA 3

1947	107 Miles of CTC on the N&W 2.3 MB
1961	News Briefs. 1961-04 1.5 MB
1943	Norfolk & Western Installs CTC on 14 Miles of Single Track 4.4 MB

radio 16

1962	1962 outlook 3.0 MB
1965	B&O would have used radio orders 573.9 KB
1947	Burlington Uses Radio on Switchers 909.1 KB
1946	Carryphone on the Pennsylvania 1.5 MB
1962	EJ&E Uses Tone Coding to Get Systems on One RF Channel 562.3 KB
1950	Increasing Use of Carrier 1.3 MB
1964	Individual radios carried by crewmen can aid yard work 549.7 KB
1954	Loudspeakers and Interlocking Improve Yard Operation 4.7 MB
1965	Midwest RRs fight the weather 914.3 KB
1955	Modern communications essential to efficient railroading 696.7 KB
1956	Train Operations When CTC Fails 3.5 MB
1956	Train Operations When CTC Fails 2.4 MB
1949	Two-Way Radio Speeds Busy Terminal Operation 3.0 MB
1955	Unusual control for crossing protection 722.1 KB
1956	Walkie-Talkies 1.5 MB
1955	Yard radio pays its way on the C&O 799.6 KB

radio communication 1

1937	Railway Signaling by Wireless 1.6 MB

radio transmitters 1

1962	Hotbox Detectors Talk 2.0 MB

radioactive lighting 1

1962	Electric Switch Lamp Lighting Helps Reduce Operating Expense 661.7 KB

rail bonding 2

1950	New Rail-Web Bond 1.3 MB
1939	Recent Developments In Rail Bonding 3.7 MB

rail locks 1

1935	Checking Rail Ends on Drawbridges 2.5 MB

rail resistance 1

1947	DC Track Circuit Measurements 291.6 KB

Railroad Commission of Iowa 1

1910	Interlocking Laws in the United States and Canada 821.1 KB

Railroad Commission of Texas 1

1910	Interlocking Laws in the United States and Canada 821.1 KB

railroad emblems 1

1962	Identifying Emblems 326.9 KB

Railroad Labor Executives Association 1

1964	ICC Proposes RS&I Changes 2.3 MB

railroad radio 3

1963	GN Radio Works in Tunnel 1.1 MB
1949	New Space Radio Relay System Adopted by South Shore 4.2 MB
1944	Railroad Applications of Electronics 1.9 MB

Railway Labor Executives Association 2

1965	AAR and RLEA reply to RS&I exceptions 863.6 KB
1965	RLEA objects to 11 RS&I changes 1.1 MB

Railway Signal Association 5

1949	A Century of Signal Glass Developments 4.2 MB
1943	Herbert S. Balliet obituary 609.4 KB
1935	Letter to the Editor- Comment on Multiple Aspects 1.5 MB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB
1913	Settled at Last 824.8 KB

Rainy Jct., MN 1

1962	DM&IR Consolidates CTC Control Miles 384.7 KB

Ramsey, MN 1

1938	CTC Replaces Staff System on the Milwaukee 2.3 MB

Randolph Street (Chicago, IL) 1

1932	Illinois Central Installs 68-Lever Electric Plant 3.3 MB

Raritan, NJ 1

1931	Centralized Traffic Control Postpones Four-Tracking on Central of New Jersey 3.0 MB

Ravenna, KY 1

1950	L&N Extends CTC on "EK" 10.4 MB

Ravenna, NE 1

1951	Burlington Simplifies CTC for Light-Traffic Single Track 1.7 MB

Ravenna, OH 1

1947	Remote Control on Baltimore & Ohio 595.8 KB

Ravinia, IL 1

1954	Automatic Gates Increase Safety 3.2 MB

Rawlins, WY 1

1937	Color Light Signals Replace Semaphores on Union Pacific 4.2 MB

Reading 30

1935	Alining Flashers 3.2 MB
1947	Annual Review and Outlook 425.1 KB
1936	Annunciator Circuits 2.6 MB
1925	Approach Locking Circuits Dependent on Signal Position 1.4 MB
1950	CTC on the Reading 6.6 MB
1937	Direct-Wire or Coded Circuits 1.3 MB
1962	Electric Switch Lamp Lighting Helps Reduce Operating Expense 661.7 KB
1928	Eliminating Danger of False-Clear Semaphores 857.8 KB
1936	Instructions for Crossing Protection in New York 1.8 MB
1943	Instructions in Signal Aspects and Indications to New Employees 5.6 MB
1964	Interlocking: New Solid State Coding System Is Fast 1.7 MB
1944	Light-Type Signals Installed on the Reading 6.3 MB
1924	New Reading Interlocking at Camden 3.4 MB
1934	New Signaling on the Reading 631.4 KB
1962	News Briefs. 1962-02 1.4 MB
1963	News Briefs. 1963-12 422.5 KB
1964	News Briefs. 1964-08 827.3 KB
1965	News Briefs. 1965-01 2.0 MB
1965	News Briefs. 1965-11 1.2 MB
1966	News Briefs. 1966-01 1.4 MB
1950	Passenger Terminal Signals 993.8 KB
1935	Preventing Unnecessary Operation of Highway-Railroad Crossing Signals 4.3 MB
1961	Reading Improves 13 Crossings 739.0 KB
1936	Reading Installs Unique Crossing Protection 9.5 MB
1937	Remote Control By Code 7.0 MB
1928	Signal and Train Control Hearing Ends 2.0 MB
1961	Survey Tells How Railroads Use Hotbox Detectors 1.8 MB
1955	The Reading has compact control machine for consolidated interlocking 511.5 KB
1925	The Train Control Situation 853.0 KB
1926	Train Control Progress in 1925 3.1 MB

Reading Terminal, Philadelphia, PA 1

1964	Interlocking: New Solid State Coding System Is Fast 1.7 MB

Reading, PA 2

1944	Light-Type Signals Installed on the Reading 6.3 MB
1955	The Reading has compact control machine for consolidated interlocking 511.5 KB

rectifiers 2

1935	New Devices 1.5 MB
1937	Rectifiers in Flood Waters 972.4 KB

Rector St., New York, NY 1

1917	New York Elevated Signal Improvements 418.8 KB

Red Bank, PA 1

1944	Pennsylvania Installs CTC On 53 Miles of Busy Single Track 8.5 MB

Red Buttes, WY 1

1955	CTC and cab signaling on Union Pacific 789.5 KB

red center purple glass 1

1935	Purple Signal Glasses 3.3 MB

red center purple lenses 1

1935	Purple Signal Glasses 3.3 MB

red for danger 1

1915	Red as a Danger Indication 283.5 KB

Red Oak, IA 3

1930	Burlington Completes Centralized Traffic Control on 24 Miles of Single Track 3.7 MB
1943	Continuously Coded Local Line Wire Signal Control Circuits 4.5 MB
1947	Railroads Request Relief from the ICC Signal Order 365.7 KB

Red Wing, MN 2

1963	News Briefs. 1963-01 971.6 KB
1964	News Briefs. 1964-04 1.4 MB

Redan, GA 1

1947	Automatic Block With Spring Switches installed on the Georgia Railroad 851.4 KB

redarder yard 2

1964	News Briefs. 1964-05 1.0 MB
1964	News Briefs. 1964-07 849.5 KB

Reddick, IL 1

1937	Signal Construction on the Wabash 12.2 MB

Redding, CA 3

1963	News Briefs. 1963-02 1.3 MB
1963	News Briefs. 1963-06 973.6 KB
1944	Railroad Applications of Electronics 1.9 MB

Redfield, SD 1

1928	Automatic Interlockers Are Profitable Investments 3.3 MB

Redlands, CA 1

1946	ICC 50-MPH Signal Hearing 6.9 MB

Regal, ND 1

1964	News Briefs. 1964-08 827.3 KB

Regan Safety Devices 1

1924	Rock Island Installs Train Control 847.9 KB

relay 8

1935	An Under-Voltage Relay 1.2 MB
1941	Code-Following Polar Track Circuit Relay 1.4 MB
1935	Ground Detector Relay for Instantaneous and Automatic Detection 2.3 MB
1936	Light-out Relay for AC or DC 2.3 MB
1941	P4 Code-Following Relay 1.1 MB
1936	Power-Transfer Relay for Crossing Signals 3.5 MB
1910	The Hall Signal Company’s New Relay 1.4 MB
1916	The New Ziegler Relay 396.2 KB

relay interlocking 13

1939	230 Routes In a Relay Interlocking 2.3 MB
1944	Canadian National installs new type of all-relay interlocking at Montreal 7.0 MB
1957	Consolidation Cuts Costs 3.1 MB
1954	IC Combines Interlockings 1.5 MB
1955	Interlocking Expedites Terminal Moves 1.6 MB
1954	Loudspeakers and Interlocking Improve Yard Operation 4.7 MB
1954	New Interlocking on Leads to Docks Saves Time for Ore Trains 2.9 MB
1954	New Orleans Passenger Terminal 4.7 MB
1954	NYC Combines Interlockings 2.4 MB
1957	Relay Interlocking Saves Time at Yard Entrances 2.5 MB
1955	Remote Control Eliminates Train Stops 1.3 MB
1965	Signalmen's President Jesse Clark discusses safety on the railroads 643.5 KB
1952	Train Time Saved By New Interlocking and Automatic Protection at 15 Street Crossings in Lima, Ohio 4.4 MB

relay operators 1

1947	Illinois Central Honors Radio “Hams” for Emergency Services 278.0 KB

relay timers 1

1950	New Developments 16.9 MB

Relay, E. St. Louis, IL 1

1908	Interlocking Facilities of the St. Louis Terminal Railroad Assn. of St. Louis 7.2 MB

relays 15

1935	Advantages of Modern Relays 4.0 MB
1928	Circuit Polarity at Relay Contacts 526.2 KB
1935	Circuits for Crossing Signals 1.5 MB
1939	Contact Pitting 1.6 MB
1940	D.C. Test Set For Relays, Slots 3.7 MB
1940	Effecting Time Delay for Relays 933.3 KB
1936	Flashing Light Signal Failures 2.6 MB
1956	Interlocking Relays 3.9 MB
1935	New and Unusual Signal and Relay Repair Shop on the Chicago Rapid Transit 9.0 MB
1935	Obsolescence in Signaling 3.4 MB
1935	Power Transfer Relay 1.3 MB
1936	Relay Shipment Container 2.0 MB
1937	Shunt Sensitivity and Broken Rail Protection 4.3 MB
1963	Solid State Devices 938.4 KB
1937	Track Shunting Problems 2.5 MB

remote control 19

1937	APB, Remote Control, and CTC on the Baltimore & Ohio 11.9 MB
1936	C&O Remote Control 12.8 MB
1936	Demands for Modern Signaling 12.1 MB
1950	Double to Single Track with Remote Control 4.2 MB
1936	Interlocking and Remote Control on Erie 18.9 MB
1935	Obsolescence in Signaling 3.4 MB
1937	Pennsylvania CTC Installation 7.0 MB
1935	Power-Off Lights at CTC Machines 2.1 MB
1937	Remote Control By Code 7.0 MB
1956	Remote Control Converted to CTC 6.6 MB
1941	Remote Control Installation 2.4 MB
1944	Remote Control Interlocking on the D&RGW 4.3 MB
1953	Remote Control Interlockings Improve Terminal Operation 555.6 KB
1936	Remote Control on the Pennsylvania 14.5 MB
1937	Remote Control on the Pennsylvania 5.2 MB
1935	Remote Control on the Seaboard 5.4 MB
1940	Remote Control On the Southern 3.8 MB
1944	Remote Control Project Saves Train Time on the Baltimore & Ohio 3.5 MB
1931	What Can Be Done Now? 736.8 KB

remote control interlocking 8

1947	Annual Review and Outlook 425.1 KB
1955	CTC reduces operating expenses 431.8 KB
1955	News Briefs. 1955-08 801.6 KB
1962	News Briefs. 1962-02 1.4 MB
1962	News Briefs. 1962-10 457.3 KB
1963	News Briefs. 1963-01 971.6 KB
1962	Remote Control Interlocking Has Time Division Multiplex System 855.3 KB
1947	Remote Control on Baltimore & Ohio 595.8 KB

remote control switch 1

1937	Remote Control Switch Expedites Trains at a Junction on the Union Pacific 5.1 MB

repair shop 1

1935	New and Unusual Signal and Relay Repair Shop on the Chicago Rapid Transit 9.0 MB

replacing spring switches 1

1964	What CTC Can Do For You 427.1 KB

reservations 1

1956	No Waiting for Reservations 6.3 MB

reserve yellow 4

1935	Avoiding Light-Out Signal Failures 2.2 MB
1935	Avoiding Light-Out Signal Failures 1.2 MB
1925	Color-Light Signals on C&NW 6.9 MB
1931	Three-Track Signaling on 13.5 Miles of the C&NW 5.4 MB

restricted speed 3

1965	AAR and RLEA reply to RS&I exceptions 863.6 KB
1961	Should Sidings Have Circuits? 347.6 KB
1944	Track Circuits on Passing Tracks in CTC Territory 941.8 KB

retained-neutral neutral relay 1

1950	Retained-Neutral Neutral Relay 3.4 MB

retained-neutral relay 1

1950	Retained-Neutral Neutral Relay 3.4 MB

retarder classification yards 1

1962	1962 outlook 3.0 MB

retarder yard 7

1963	News Briefs. 1963-02 1.3 MB
1963	News Briefs. 1963-03 830.1 KB
1964	News Briefs. 1964-05 1.0 MB
1965	News Briefs. 1965-06 1.2 MB
1965	PRR converts two hump yards 634.6 KB
1965	PRR upgrades yard, improves service 1.2 MB
1963	Special Report: P&LE Signaling and Communications 3.9 MB

retarder yards 3

1955	Much is new in signaling for 1955 826.7 KB
1964	News Briefs. 1964-04 1.4 MB
1965	News Briefs. 1965-01 2.0 MB

retarders 3

1950	IC Rebuilds Classification Yard 6.9 MB
1964	News Briefs. 1964-08 827.3 KB
1964	News Briefs. 1964-12 998.6 KB

return on investment 1

1949	40-Hour Week Means More Signaling 1.1 MB

Revelstoke, BC 1

1965	News Briefs. 1965-01 2.0 MB

Rhea, Frank 2

1913	Settled at Last 824.8 KB
1935	The Rudd-Rhea Signaling Report of the Pennsylvania 9.7 MB

Rhodesia 1

1965	Rhodesia has 1215 miles of CTC 949.2 KB

Rice, IL 1

1931	Chicago Great Western Saves $7,000 Annually by Remote Control of Tunnel Interlockings 3.7 MB

Richland, NE 1

1937	Color Light Signals Replace Semaphores on Union Pacific 4.2 MB

Richland, NJ 1

1917	Flash Lights on the P&R 920.4 KB

Richlands, VA 1

1950	Neon Lighting For Crossing Gate Arms 3.1 MB

Richmond Beach, WA 1

1964	News Briefs. 1964-10 778.4 KB

Richmond Hill, Ontario 1

1963	News Briefs. 1963-03 830.1 KB

Richmond, CA 2

1955	Modern communications essential to efficient railroading 696.7 KB
1947	Railroads Request Relief from the ICC Signal Order 365.7 KB

Richmond, Fredericksburg & Potomac 8

1947	All-Relay Interlockings On the RF&P 1.3 MB
1947	Choice of Interlocking Control Machines 266.5 KB
1955	How to run reverse temporarily 197.6 KB
1955	Much is new in signaling for 1955 826.7 KB
1928	Signal and Train Control Hearing Ends 2.0 MB
1951	Signal Modernization Program on the RF&P 1.0 MB
1961	Survey Tells How Railroads Use Hotbox Detectors 1.8 MB
1965	What's the Answer? 1965-07 629.7 KB

Richmond, VA 4

1947	Annual Review and Outlook 425.1 KB
1951	Signal Modernization Program on the RF&P 1.0 MB
1924	Three Train Control Contracts Let 1.9 MB
1955	Unusual control for crossing protection 722.1 KB

Richton, IL 1

1927	Signaling of IC Chicago Terminal 6.4 MB

Ridge Farm, IL 1

1911	Automatic Signals on Vermillion River Bridge 986.3 KB

Ridge, FL 1

1963	News Briefs. 1963-11 1.4 MB

Ridgeton, KS 1

1922	Signal Construction on the Santa Fe 797.6 KB

Ridgeway, OH 2

1964	News Briefs. 1964-10 778.4 KB
1965	News Briefs. 1965-10 1.1 MB

Ridgewood Jct., NJ 1

1935	New Automatic Signals Increase Track Capacity and Safety on the Erie 6.4 MB

Ridgewood, NJ 1

1935	New Automatic Signals Increase Track Capacity and Safety on the Erie 6.4 MB

Ridgley Jct., IL 1

1911	Signaling on the Illinois Traction System 1.5 MB

Rinaker, IL 2

1937	Alton Uses Spring Switches on Ends of Double Track 5.0 MB
1961	News Briefs. 1961-05 1.1 MB

Riner, WY 1

1937	Color Light Signals Replace Semaphores on Union Pacific 4.2 MB

River Jct., NY 1

1951	Double to Single Track 60 Miles on the Erie 1.1 MB

Rivermont, VA 2

1962	News Briefs. 1962-10 457.3 KB
1963	News Briefs. 1963-02 1.3 MB

Riverside, MA 1

1963	News Briefs. 1963-03 830.1 KB

Riverside, ME 1

1964	News Briefs. 1964-08 827.3 KB

Roachton, OH 1

1932	Centralized Traffic Control on the Baltimore & Ohio 4.4 MB

Roanoke, VA 6

1947	All-Relay Interlocking Replaces Mechanical Plant 1.5 MB
1951	Modern Interlocking on the Norfolk & Western 710.2 KB
1950	Neon Lighting For Crossing Gate Arms 3.1 MB
1936	Replacing Semaphores With Position Light Signals On the Norfolk & Western 7.9 MB
1926	Signal Business Is Good Especially For Single Track 382.3 KB
1926	Train Control Progress in 1925 3.1 MB

Robbins, OH 1

1950	Remote Control of Center Sidings On Busy Double-Track Line 3.6 MB

Robbs, IL 1

1963	News Briefs. 1963-11 1.4 MB

Robinson, IL 1

1963	News Briefs. 1963-05 742.2 KB

Robinson, William 1

1916	William Robinson, Inventor of the Track Circuit 373.1 KB

Rochelle, IL 1

1965	News Briefs. 1965-10 1.1 MB

Rochester, MN 1

1932	Automatic Interlocking Replaces Mechanical Plant 1.7 MB

Rochester, NY 3

1927	Color Light Automatic Block Signals Installed on the New York Central 3.6 MB
1954	General Railway Signal Company Enters Fiftieth Year 1.6 MB
1949	Signal Research and Development 2.9 MB

Rock Creek Jct., MO 1

1947	Railroads Request Relief from the ICC Signal Order 365.7 KB

Rock Haven, KY 1

1947	CTC Down by the Ohio 2.7 MB

Rock Island, IL 7

1944	Coded Track Circuits for CTC and Cab Signaling 4.0 MB
1916	Government Drawbridge Signaling 670.2 KB
1941	Protection at 38 Street Crossings In and Near Rock Island, Ill 3.1 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
1949	Signaling Adapted to Traffic On the Rock Island 5.2 MB

rock slide detectors 2

1951	Both Tracks Both Ways on Norfolk & Western 623.5 KB
1955	CTC and cab signaling on Union Pacific 789.5 KB

rock slide fences 4

1949	625 Miles of CTC in one Stretch 7.9 MB
1939	Rock Detector Protection on the Western Pacific 2.1 MB
1936	Slide Detector Signals 12.9 MB
1939	Special Aspects for Detectors 937.0 KB

Rockford, IL 4

1934	Automatic Crossing Gates on Illinois Central 2.7 MB
1937	Burlington Protects Three Crossings 6.9 MB
1929	Crossing Protection Installed Extensively on the Milwaukee 1.3 MB
1963	News Briefs. 1963-11 1.4 MB

Rockingham, NH 1

1965	News Briefs. 1965-10 1.1 MB

Rockledge, FL 1

1962	News Briefs. 1962-09 835.6 KB

Rockport, KY 2

1964	News Briefs. 1964-10 778.4 KB
1965	News Briefs. 1965-01 2.0 MB

Rockton, IL 1

1934	CTC Replaces Staff on Milwaukee 2.0 MB

Rocky Mount, NC 5

1947	Annual Review and Outlook 425.1 KB
1961	News Briefs. 1961-12 971.1 KB
1962	News Briefs. 1962-05 831.1 KB
1962	News Briefs. 1962-06 980.1 KB
1924	Three Train Control Contracts Let 1.9 MB

roller bearings 1

1962	Toronto Railway Conference – Automatic Train Operation 457.7 KB

Rome, GA 2

1961	News Briefs. 1961-11 1.3 MB
1965	News Briefs. 1965-09 379.4 KB

Rome, Italy 1

1947	Signaling and Interlocking in Italy 684.8 KB

Romford, Ontario 1

1962	News Briefs. 1962-06 980.1 KB

Ronceverte, WV 1

1934	C&O Combines Two Interlockings in Centralized Control 2.6 MB

Rondout, IL 5

1930	Color-light Automatic Block Signals and Automatic Interlocking 2.4 MB
1938	EJ&E Installs APB Signaling 3.1 MB
1949	Milwaukee Installs Automatic Block 8.2 MB
1964	News Briefs. 1964-09 899.1 KB
1935	Signaling for Higher Train Speeds 3.0 MB

Rook, PA 1

1951	P&WV Signals Entire Main Line 3.9 MB

Root Street, Chicago, IL 1

1928	Rock Island Completes 33-Lever Electric Interlocker 2.8 MB

Rosas, PA 1

1931	Erie Increases Track Capacity on Busy Section of Double Track 2.6 MB

Rose Lake, IL 1

1965	News Briefs. 1965-01 2.0 MB

Rosenberg, TX 1

1954	CTC Improves Train Operation 3.3 MB

Roseville, CA 1

1964	News Briefs. 1964-02 997.7 KB

Rossville, MD 1

1961	Railroad Will Pay For CTC Out Of Accrued Savings 842.9 KB

rotating stop signs 3

1943	Crossing Protection on Milwaukee 5.7 MB
1927	Rotating Stop Signal for Highway Grade Crossings 1.0 MB
1937	The Rotating Stop Sign 1.1 MB

Rotterdam Jct. 1

1947	Hoosac Tunnel Interlocking and CTC 1.7 MB

Rotterdam Jct., NY 1

1955	CTC reduces operating expenses 431.8 KB

Rouses Point, NY 2

1962	News Briefs. 1962-03 1.1 MB
1962	News Briefs. 1962-06 980.1 KB

route control interlocking 1

1964	News Briefs. 1964-08 827.3 KB

route interlocking 24

1944	Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways 8.6 MB
1951	Burlington Installs Extensive Interlocking at Kansas City 1.0 MB
1952	Chicago's Newest Subway Has Automatic Block Signaling and Train Stop 1.1 MB
1964	Interlocking: New Solid State Coding System Is Fast 1.7 MB
1947	Large All-Relay Interlocking on the New York Central 2.5 MB
1955	Much is new in signaling for 1955 826.7 KB
1955	New Cleveland Transit System 911.5 KB
1951	New Interlocking in Holland 1.0 MB
1951	New NYC Interlocking Controlled by Synchrostep 1.2 MB
1937	New York Central Installs First Button-Control Route Interlocking 9.0 MB
1949	New York Central Installs Interlocking 3.3 MB
1961	News Briefs. 1961-01 755.2 KB
1963	News Briefs. 1963-02 1.3 MB
1963	News Briefs. 1963-05 742.2 KB
1963	News Briefs. 1963-06 973.6 KB
1965	News Briefs. 1965-01 2.0 MB
1965	News Briefs. 1965-02 1.9 MB
1965	News Briefs. 1965-07 793.4 KB
1956	NX Control Replaces Lever Machine 2.8 MB
1936	NX Electric Interlocking 3.8 MB
1937	Route Control Interlocking – A New Signaling Development 2.9 MB
1940	Route Type Interlocking at Tower Grove in St. Louis 11.1 MB
1950	Route Type Interlocking on New York Subway 8.7 MB
1955	The Reading has compact control machine for consolidated interlocking 511.5 KB

route lever interlocking 4

1955	News Briefs. 1955-08 801.6 KB
1962	News Briefs. 1962-02 1.4 MB
1962	News Briefs. 1962-05 831.1 KB
1953	Route Lever Interlocking on Rock Island 6.5 MB

route locking 4

1919	Electric Interlocking at Charlottesville,VA 530.2 KB
1913	Illinois Central Alternating Current Signaling 2.5 MB
1937	Route Locking Circuits 1.9 MB
1911	Summary of Recent Progress in Signaling 4.4 MB

Royal Gorge 1

1944	Rio Grande has Longest CTC 9.2 MB

RS Tower, WV 1

1952	CTC Pays Its Way on B&O 733.2 KB

Rudd, A. H. 33

1925	A movement was begun 604.7 KB
1925	A. H. Rudd Discusses Train Control at Philadelphia Engineers' Club 2.8 MB
1949	A. H. Rudd obituary 947.2 KB
1937	A. H. Rudd Retires 1.6 MB
1915	Beam-Light Signals on the Pennsylvania 318.8 KB
1936	Cab Signaling 7.8 MB
1937	Changes on the Pennsylvania 1.6 MB
1921	Derails: Are They Good or Bad? 350.6 KB
1915	First Position Light Signal Installation 580.6 KB
1935	Letter to the Editor- Comment on Multiple Aspects 1.5 MB
1911	Letters to the Editor: Uniform Signaling: A reply to Mr. Rudd 1.8 MB
1920	Light Signals to Supplant the Semaphore 7.0 MB
1935	Preventing Unnecessary Operation of Highway-Railroad Crossing Signals 4.3 MB
1921	Proposed Modification of Stop-and-Proceed Rule 1.4 MB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB
1937	Report of Committee X – Signaling Practice 2.9 MB
1924	Results of Train Control Test on Pennsylvania 3.1 MB
1937	Rule for Crossing Protection 1.2 MB
1916	Service Record of Position-Light Signals 580.8 KB
1913	Settled at Last 824.8 KB
1935	Signal Night for New York Railroad Club 1.1 MB
1916	Some Examples of Early Signaling 351.5 KB
1921	Stop or Proceed vs. Stop and Proceed 335.2 KB
1921	Stop or Proceed vs. Stop and Proceed [reply] 330.8 KB
1911	Summary of Recent Progress in Signaling 4.4 MB
1915	Switch and Lock Movements in Mechanical Plants 2.0 MB
1921	The Development of Position Light Signals 830.7 KB
1908	The Electro-Pneumatic Signal and Interlocking System at the New Union Station, Washington, DC 4.5 MB
1913	The Great and the Near Great in Signaling: A. H. Rudd 813.1 KB
1925	The Position Light Signal 1.7 MB
1911	The Principles of Railway Signaling 3.5 MB
1935	The Rudd-Rhea Signaling Report of the Pennsylvania 9.7 MB
1925	Train Operation by Signal Indications – Especially by Cab Signals 1.3 MB

Rudd-Rhea report 2

1913	Settled at Last 824.8 KB
1935	The Rudd-Rhea Signaling Report of the Pennsylvania 9.7 MB

Ruislip, England 1

1931	Metropolitan Railway of London Resignaling with Modern Equipment 1.8 MB

rules enforcement 1

1950	Signaling and Rules 1.4 MB

Rules, Standards & Instructions 10

1965	AAR and RLEA reply to RS&I exceptions 863.6 KB
1965	AAR excepts to 3 rule changes 647.5 KB
1964	Examiner reports on RS&I changes 1.8 MB
1964	ICC Proposes RS&I Changes 2.3 MB
1963	ICC Proposes RS&I Changes. 1963-07 3.5 MB
1963	ICC Proposes RS&I Changes. 1963-08 1.1 MB
1964	ICC Proposes RS&I Changes. 1964-03 1.1 MB
1964	ICC Proposes RS&I Changes. 1964-04 659.3 KB
1965	RLEA objects to 11 RS&I changes 1.1 MB
1965	Signalmen's President Jesse Clark discusses safety on the railroads 643.5 KB

rules, standards & instructions 1

1962	ICC Proposes RS&I Changes 310.7 KB

Rules, Standards and Instructions 5

1940	A Change in the Requisites, Definitions and Regulations 1.2 MB
1939	ICC Issues Rules, Standards and Instructions for Signaling 10.3 MB
1950	New Rules, Standards and Instructions Issued by the Interstate Commerce Commission 7.9 MB
1950	Rules, Standards and Instructions 1.5 MB
1950	Telephones at Signals 1.1 MB

Rural Retreat, VA 1

1950	Neon Lighting For Crossing Gate Arms 3.1 MB

Rushville, IN 1

1951	Street and Railroad Crossing Protection Combined 529.9 KB

Ruslor, MS 2

1930	Illinois Central Installs Color Light Signals on 80 Miles 1.6 MB
1947	Railroads Request Relief from the ICC Signal Order 365.7 KB

Russel, KY 1

1964	News Briefs. 1964-07 849.5 KB

Russell, IL 1

1935	Safety of High Speed Trains 5.2 MB

Russell, KY 2

1927	C&O Completes Three-Track Color-Light, Either-Direction Signaling 3.9 MB
1950	Remote Control of Center Sidings On Busy Double-Track Line 3.6 MB

Russia 1

1933	Modern Signaling in Soviet Russia 3.3 MB

rute interlocking 1

1947	Medals Awarded by Franklin Institute 236.3 KB

Rutherford Jct., NJ 2

1939	Erie Installs Electric Interlocking 2.2 MB
1935	New Automatic Signals Increase Track Capacity and Safety on the Erie 6.4 MB

Rutland 1

1963	News Briefs. 1963-10 518.0 KB

Ryan, IL 1

1941	Automatics Installed on the Wabash 4.0 MB

Rye, NY 2

1915	Extension of New Haven signals 684.8 KB
1956	Train Runs by Wayside Control 3.3 MB

Railway Signaling: R

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