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 2

1954	Automatic Gates Increase Safety 3.2 MB
1958	Crossing protection program saves 59% 553.4 KB

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 28

1962	1962 outlook 3.0 MB
1965	B&O would have used radio orders 565.5 KB
1960	British open new class yard 240.4 KB
1947	Burlington Uses Radio on Switchers 909.1 KB
1946	Carryphone on the Pennsylvania 1.5 MB
1958	Chicago Transit tests train-phone 282.5 KB
1959	Communications is everywhere at P&LE's Gateway Yard in Youngstown, Ohio 2.1 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 914.4 KB
1955	Modern communications essential to efficient railroading 696.7 KB
1960	News briefs. 1960-01 1.1 MB
1960	News briefs. 1960-08 603.8 KB
1960	News briefs. 1960-11 875.5 KB
1963	News briefs. 1963-07 489.2 KB
1960	Radio controls switcher 253.3 KB
1960	Remote control train: Successful tests in France 209.9 KB
1958	RS&C 50th anniversary: Looking ahead 652.9 KB
1960	Signaling enters automation 630.7 KB
1958	Split-channel radio 649.4 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 carrier 1

1958	Carrier sends hot box indications to dispatchers' office 810.6 KB

radio communication 1

1937	Railway Signaling by Wireless 1.6 MB

radio frequency allocation 1

1958	Split-channel radio 649.4 KB

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

railcar identification 1

1958	RS&C 50th anniversary: Looking ahead 652.9 KB

railcar reporting 2

1959	C&NW has system-wide car reporting 702.6 KB
1960	Planning the C&O's CLIC – The economics of data communications 1.1 MB

railcar tracing 1

1959	C&NW has system-wide car reporting 702.6 KB

Railroad Commission of California 1

1922	News of the Month. 1922-10 368.4 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 6

1963	GN Radio Works in Tunnel 1.1 MB
1949	New Space Radio Relay System Adopted by South Shore 4.2 MB
1960	News briefs. 1960-04 896.6 KB
1960	News briefs. 1960-05 1.0 MB
1944	Railroad Applications of Electronics 1.9 MB
1960	Signal construction steady in 1959 385.2 KB

Railway Labor Executives Association 2

1965	AAR and RLEA reply to RS&I exceptions 858.7 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 614.8 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

Railway Signaling 2

1958	RS&C 50th anniversary: Signaling ... manual to automatic 2.0 MB
1958	Six editors in 50 years 253.5 KB

Railway Signaling & Communications 2

1958	RS&C 50th anniversary: Signaling ... manual to automatic 2.0 MB
1958	Six editors in 50 years 253.5 KB

Rainy Jct., MN 1

1962	DM&IR Consolidates CTC Control Miles 384.7 KB

Ramsey, IL 1

1922	Work in Signal Field Shows Gain Over 1920 784.5 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

Rantoul, IL 1

1922	News of the Month. 1922-04 613.8 KB

Raritan River 2

1922	Automatic Train Control in Use On American Railroads 353.7 KB
1922	News of the Month. 1922-08 394.0 KB

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 36

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
1960	News briefs. 1960-05 1.0 MB
1962	News briefs. 1962-02 1.4 MB
1963	News briefs. 1963-12 429.2 KB
1964	News briefs. 1964-08 811.5 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
1958	RS&C 50th anniversary: Signaling ... manual to automatic 2.0 MB
1928	Signal and Train Control Hearing Ends 2.0 MB
1959	Signaling moderate during '58 528.6 KB
1958	Signaling to cut expenses in '58 411.4 KB
1957	Survey shows progress in signal education 330.6 KB
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
1960	What's the answer? AC track circuits 281.9 KB

Reading Terminal, Philadelphia, PA 1

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

Reading, PA 3

1944	Light-Type Signals Installed on the Reading 6.3 MB
1958	RS&C 50th anniversary: Signaling ... manual to automatic 2.0 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. 1963-01 951.3 KB
1964	News briefs. 1964-04 1.3 MB

Redan, GA 1

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

redarder yard 1

1964	News briefs. 1964-05 1.0 MB

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. 1963-06 961.3 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. 1964-08 811.5 KB

Regan Safety Device 1

1922	Automatic Train Control in Use On American Railroads 353.7 KB

Regan Safety Devices 2

1922	News of the Month. 1922-12 388.1 KB
1924	Rock Island Installs Train Control 847.9 KB

Regina, Saskatchewan 1

1922	News of the Month. 1922-09 562.2 KB

Reich, E. W. 1

1943	Instructions in Signal Aspects and Indications to New Employees 5.6 MB

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 assembly 1

1931	Burlington Develops Signal Repair Shop at Aurora, IL 370.9 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
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
1960	News briefs. 1960-06 1.2 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 648.8 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 repair 1

1931	Burlington Develops Signal Repair Shop at Aurora, IL 370.9 KB

relay timers 1

1950	New Developments 16.9 MB

Relay, East St. Louis, IL 1

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

relays 16

1935	Advantages of Modern Relays 4.0 MB
1931	Burlington Develops Signal Repair Shop at Aurora, IL 370.9 KB
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 551.4 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 9

1947	Annual Review and Outlook 425.1 KB
1955	CTC reduces operating expenses 431.8 KB
1955	News briefs. 1955-08 830.4 KB
1962	News briefs. 1962-02 1.4 MB
1962	News briefs. 1962-10 461.7 KB
1963	News briefs. 1963-01 951.3 KB
1962	Remote Control Interlocking Has Time Division Multiplex System 846.3 KB
1947	Remote Control on Baltimore & Ohio 595.8 KB
1958	Remote control saves money 868.5 KB

remote control switch 1

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

remote-control interlocking 8

1958	CP consolidates interlockings 2.0 MB
1958	DL&W-Erie joint operation is ready to go 643.6 KB
1958	Improved signaling results from grade elimination 883.1 KB
1959	News briefs. 1959-05 506.5 KB
1960	News briefs. 1960-06 1.2 MB
1958	Nine layouts in one interlocking 1.7 MB
1958	Subway consolidates interlockings 2.2 MB
1957	Two interlockings save time and money 547.8 KB

Renick, OH 1

1959	News briefs. 1959-05 506.5 KB

repair shop 1

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

repeater signals 1

1959	What's the answer? Repeater signals 691.6 KB

replacing spring switches 1

1964	What CTC Can Do For You 417.8 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 858.7 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 2

1962	1962 outlook 3.0 MB
1960	Signal construction steady in 1959 385.2 KB

retarder yard 9

1958	Automatic classification yard in service on the Burlington at Chicago 2.9 MB
1963	News briefs. 1963-02 1.3 MB
1963	News briefs. 1963-03 790.6 KB
1964	News briefs. 1964-05 1.0 MB
1964	News briefs. 1964-07 833.0 KB
1965	News briefs. 1965-06 1.2 MB
1965	PRR converts two hump yards 630.5 KB
1965	PRR upgrades yard, improves service 1.2 MB
1963	Special Report: P&LE Signaling and Communications 3.9 MB

retarder yards 12

1960	British open new class yard 240.4 KB
1959	Communications is everywhere at P&LE's Gateway Yard in Youngstown, Ohio 2.1 MB
1959	How retarder controls function at Young Yard on the NYC 978.1 KB
1959	Mobile lab evaluates class yards 830.6 KB
1955	Much is new in signaling for 1955 826.7 KB
1960	News briefs. 1960-02 995.4 KB
1960	News briefs. 1960-11 875.5 KB
1964	News briefs. 1964-04 1.3 MB
1965	News briefs. 1965-01 2.0 MB
1958	RS&C 50th anniversary: Looking ahead 652.9 KB
1959	Signaling moderate during '58 528.6 KB
1958	Signaling to cut expenses in '58 411.4 KB

retarders 3

1950	IC Rebuilds Classification Yard 6.9 MB
1964	News briefs. 1964-08 811.5 KB
1964	News briefs. 1964-12 981.5 KB

Retiro Station, Buenos Aires, Argentina 2

1922	Interlockings in Argentine Terminal 473.1 KB
1922	Locking Arrangement for Movable Point Crossing Frogs 527.0 KB

Retiro, Argentina 1

1960	News briefs. 1960-06 1.2 MB

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

Rexford, MT 2

1922	News of the Month. 1922-04 613.8 KB
1922	News of the Month. 1922-06 516.2 KB

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. 1964-10 768.6 KB

Richmond Hill, Ontario 1

1963	News briefs. 1963-03 790.6 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 15

1947	All-Relay Interlockings On the RF&P 1.3 MB
1947	Choice of Interlocking Control Machines 266.5 KB
1960	Gangs do signal maintenance 309.7 KB
1955	How to run reverse temporarily 197.6 KB
1958	How to save time when trains are entering yards 513.6 KB
1922	ICC Proposes to Order Train Control on 49 Roads 376.4 KB
1955	Much is new in signaling for 1955 826.7 KB
1960	News briefs. 1960-10 1.8 MB
1958	RS&C 50th anniversary: Signaling ... manual to automatic 2.0 MB
1928	Signal and Train Control Hearing Ends 2.0 MB
1960	Signal construction steady in 1959 385.2 KB
1951	Signal Modernization Program on the RF&P 1.0 MB
1957	Survey shows progress in signal education 330.6 KB
1961	Survey Tells How Railroads Use Hotbox Detectors 1.8 MB
1965	What's the Answer? 1965-07 629.7 KB

Richmond, IN 1

1922	Work in Signal Field Shows Gain Over 1920 784.5 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

Ricker, TX 1

1960	News briefs. 1960-03 1.9 MB

Ridge Farm, IL 2

1911	Automatic Signals on Vermillion River Bridge 986.3 KB
1960	News briefs. 1960-02 995.4 KB

Ridge, FL 1

1963	News briefs. 1963-11 1.4 MB

Ridgeton, KS 2

1959	Santa Fe CTCs double track line 2.2 MB
1922	Signal Construction on the Santa Fe 797.6 KB

Ridgeway, OH 2

1964	News briefs. 1964-10 768.6 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

Rigeton, KS 1

1922	News of the Month. 1922-09 562.2 KB

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

Ripley, NY 1

1957	ICC Reports on NYC wreck 205.5 KB

River Forest, IL 1

1960	News briefs. 1960-06 1.2 MB

River Jct., NY 3

1951	Double to Single Track 60 Miles on the Erie 1.1 MB
1960	Erie installs its first hotbox detector 462.1 KB
1960	News briefs. 1960-09 756.9 KB

Riverbank, CA 1

1922	Moving Day 255.2 KB

Rivermont, VA 2

1962	News briefs. 1962-10 461.7 KB
1963	News briefs. 1963-02 1.3 MB

Riverside, MA 1

1963	News briefs. 1963-03 790.6 KB

Riverside, ME 1

1964	News briefs. 1964-08 811.5 KB

Rives, TN 1

1959	News briefs. 1959-05 506.5 KB

Roachton, OH 1

1932	Centralized Traffic Control on the Baltimore & Ohio 4.4 MB

Roanoke, VA 7

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
1960	Signaling enters automation 630.7 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

Robert R. Young Yard, Elkhart, IN 2

1958	Central opens Young Yard 2.5 MB
1959	How retarder controls function at Young Yard on the NYC 978.1 KB

Robinson, IL 1

1963	News briefs. 1963-05 720.2 KB

Robinson, William 2

1958	RS&C 50th anniversary: Signaling ... manual to automatic 2.0 MB
1916	William Robinson, Inventor of the Track Circuit 373.1 KB

Rochelle, IL 1

1965	News briefs. 1965-10 1.1 MB

Rocheport, MO 1

1938	AC Primary on the Katy 442.5 KB

Rochester, MN 1

1932	Automatic Interlocking Replaces Mechanical Plant 1.7 MB

Rochester, NY 4

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
1958	Signaling to cut expenses in '58 411.4 KB

Rochester, PA 1

1922	News of the Month. 1922-01 315.5 KB

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 3

1951	Both Tracks Both Ways on Norfolk & Western 623.5 KB
1955	CTC and cab signaling on Union Pacific 789.5 KB
1960	Signal construction steady in 1959 385.2 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 5

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
1958	Crossing protection program saves 59% 553.4 KB
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. 1962-09 838.3 KB

Rockport, KY 2

1964	News briefs. 1964-10 768.6 KB
1965	News briefs. 1965-01 2.0 MB

rockslide detectors 1

1959	Fewer wayside observers makes automatic hazard detection necessary 1.1 MB

Rockton, IL 1

1934	CTC Replaces Staff on Milwaukee 2.0 MB

Rockwell St. Yard, Chicago, IL 1

1958	Interlocking saves time and money for the Belt Railway of Chicago 2.0 MB

Rocky Mount, NC 6

1947	Annual Review and Outlook 425.1 KB
1959	News briefs. 1959-05 506.5 KB
1961	News briefs. 1961-12 978.0 KB
1962	News briefs. 1962-05 826.8 KB
1962	News briefs. 1962-06 989.1 KB
1924	Three Train Control Contracts Let 1.9 MB

roller bearings 1

1962	Toronto Railway Conference – Automatic Train Operation 448.4 KB

Rome, GA 3

1961	News briefs. 1961-11 1.3 MB
1965	News briefs. 1965-09 381.8 KB
1960	Short track circuit causes accident 436.0 KB

Rome, Italy 1

1947	Signaling and Interlocking in Italy 684.8 KB

Romford, Ontario 1

1962	News briefs. 1962-06 989.1 KB

Ronceverte, WV 1

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

Rondout, IL 6

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
1960	News briefs. 1960-10 1.8 MB
1964	News briefs. 1964-09 879.4 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. 1964-02 992.4 KB

Rossville, MD 2

1960	News briefs. 1960-01 1.1 MB
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

Rouge River bridge, Detroit, MI 1

1922	News of the Month. 1922-02 323.2 KB

Rouses Point, NY 2

1962	News briefs. 1962-03 1.1 MB
1962	News briefs. 1962-06 989.1 KB

route control interlocking 1

1964	News briefs. 1964-08 811.5 KB

route interlocking 32

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
1958	Compact control center 226.9 KB
1957	Consolidation cuts costs 1.1 MB
1958	Interlocking saves time and money for the Belt Railway of Chicago 2.0 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
1957	More automation for signaling in 1957 1.2 MB
1955	Much is new in signaling for 1955 826.7 KB
1955	New Cleveland Transit System 917.8 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
1960	News briefs. 1960-05 1.0 MB
1960	News briefs. 1960-10 1.8 MB
1961	News briefs. 1961-01 761.9 KB
1963	News briefs. 1963-02 1.3 MB
1963	News briefs. 1963-05 720.2 KB
1963	News briefs. 1963-06 961.3 KB
1965	News briefs. 1965-01 2.0 MB
1965	News briefs. 1965-02 1.9 MB
1965	News briefs. 1965-07 788.3 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
1959	Signaling: 1960 225.2 KB
1958	Subway consolidates interlockings 2.2 MB
1955	The Reading has compact control machine for consolidated interlocking 511.5 KB

route lever interlocking 4

1955	News briefs. 1955-08 830.4 KB
1962	News briefs. 1962-02 1.4 MB
1962	News briefs. 1962-05 826.8 KB
1953	Route Lever Interlocking on Rock Island 6.5 MB

Route lever interlocking 1

1958	RS&C 50th anniversary: Signaling ... manual to automatic 2.0 MB

route locking 5

1919	Electric Interlocking at Charlottesville, VA 535.5 KB
1913	Illinois Central Alternating Current Signaling 2.5 MB
1937	Route Locking Circuits 1.9 MB
1960	Short track circuit causes accident 436.0 KB
1911	Summary of Recent Progress in Signaling 4.4 MB

route signaling 2

1960	What's the answer? Route signaling 205.2 KB
1960	What's the answer? Route signaling 547.7 KB

Royal Gorge 1

1944	Rio Grande has Longest CTC 9.2 MB

RR Jct., Gurdon, AR 1

1958	MP consolidates CTC machines 797.2 KB

RS Tower, WV 1

1952	CTC Pays Its Way on B&O 733.2 KB

RS&C 50th anniversary 4

1958	RS&C 50th anniversary: Foreword 502.5 KB
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

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 858.7 KB
1965	AAR excepts to 3 rule changes 639.3 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 648.8 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

Russell, IL 1

1935	Safety of High Speed Trains 5.2 MB

Russell, KY 4

1927	C&O Completes Three-Track Color-Light, Either-Direction Signaling 3.9 MB
1957	More automation for signaling in 1957 1.2 MB
1964	News briefs. 1964-07 833.0 KB
1950	Remote Control of Center Sidings On Busy Double-Track Line 3.6 MB

Russia 2

1960	Automation on the Russian railroads 695.9 KB
1933	Modern Signaling in Soviet Russia 3.3 MB

Ruston, LA 1

1960	News briefs. 1960-05 1.0 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. 1963-10 497.4 KB

Ryan, IL 1

1941	Automatics Installed on the Wabash 4.0 MB

Rye, NY 3

1915	Extension of New Haven signals 684.8 KB
1960	Railroads fit automation 186.8 KB
1956	Train Runs by Wayside Control 3.3 MB

Railway Signaling: R