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.
1927 1
1958 1
| 1958 index 2.8 MB |
"BD" interlocking, Binghamton, NY 1
"FS" interlocking, Elmira, NY 1
"S" markers 1
"VO" interlocking, Elmira, NY 1
absolute permissive block signaling 3
accidents 1
Albany, NY 1
Alexandria, VA 2
all-relay interlocking 10
alternating current track circuits 1
approach lighting 2
| What's the answer? Approach lighting 236.9 KB |
| What's the answer? Approach lighting 237.1 KB |
approach locking 1
| What's the answer? CTC locking 269.2 KB |
aspects and indications 3
| CN consolidates interlockings 2.1 MB |
| How to adapt CTC to your traffic 748.3 KB |
| Subway consolidates interlockings 2.2 MB |
Association of American Railroads 1
| Split-channel radio 649.4 KB |
Atchison, Topeka & Santa Fe 3
audio frequency overlay 1
audio frequency track circuits 1
Aurora, IL 1
automated rail 1
| RS&C 50th anniversary: Looking ahead 652.9 KB |
automatic block signaling 6
automatic classification yards 2
automatic interlocking 5
| B&M goes underground 725.7 KB |
| Programmed interlocking control 337.6 KB |
| RS&C 50th anniversary: Signaling ... manual to automatic 2.0 MB |
| Subway consolidates interlockings 2.2 MB |
| What’s the answer? Interlocking check 175.3 KB |
automatic program control 1
| Programmed interlocking control 337.6 KB |
automatic railcar identification 1
| RS&C 50th anniversary: Looking ahead 652.9 KB |
automatic retarder yard 2
automatic retarder yards 1
| RS&C 50th anniversary: Looking ahead 652.9 KB |
automatic switching 2
| Central opens Young Yard 2.5 MB |
| RS&C 50th anniversary: Looking ahead 652.9 KB |
automatic train identification 2
automatic train stop 3
| DL&W-Erie joint operation is ready to go 643.6 KB |
| News briefs. 1958-01 1.8 MB |
| Subway consolidates interlockings 2.2 MB |
automation 1
Ayer, MA 1
Baltimore & Ohio 1
Baltimore & Ohio Chicago Terminal 2
Bayview, Ontario 1
BCD Jct., AR 1
| MP consolidates CTC machines 797.2 KB |
Beach Jct., Manitoba 1
Belt Railway of Chicago 1
Benton, AR 1
| MP consolidates CTC machines 797.2 KB |
Berwick, OH 1
Big Flats, NY 1
Binghamton, NY 1
block signal applications 1
| Signal Inspection Act 214.8 KB |
Blue Island, IL 1
| Central opens Young Yard 2.5 MB |
Boonton, NJ 1
| News briefs. 1958-01 1.8 MB |
Boston & Maine 4
BRC Western Ave. interlocking, Chicago, IL 1
broken wheel detectors 1
Buffalo, NY 1
| Signaling to cut expenses in '58 411.4 KB |
cab signaling 2
| Central opens Young Yard 2.5 MB |
| RS&C 50th anniversary: Looking ahead 652.9 KB |
Calgary, Alberta 1
call-on signals 3
| CN consolidates interlockings 2.1 MB |
| CP consolidates interlockings 2.0 MB |
| Subway consolidates interlockings 2.2 MB |
Camden Town, England 1
| Programmed interlocking control 337.6 KB |
Campville, NY 1
Canadian National 4
Canadian Pacific 3
carrier communication 1
carrier control 1
Carroll, IA 1
centralized traffic control 22
Chesapeake & Ohio 5
Chicago & North Western 4
Chicago, Burlington & Quincy 4
Chicago, IL 5
Chicago, Milwaukee, St. Paul & Pacific 3
Chicago, Rock Island & Pacific 4
Cicero, IL 1
circuit plans 3
| Santa Fe tests AF track circuits 1.6 MB |
| What's the answer? Crossing circuits 254.4 KB |
| What's the answer? Long dead sections 571.9 KB |
classification yard 2
| Central opens Young Yard 2.5 MB |
| News briefs. 1958-01 1.8 MB |
Clearing Yard, Chicago, IL 1
Cleveland, OH 1
| Signaling to cut expenses in '58 411.4 KB |
Clinchfield 2
| News briefs. 1958-01 1.8 MB |
| What's the answer? CTC locking 269.2 KB |
Clinton, IA 1
Cloud, A. D. 1
| Six editors in 50 years 253.5 KB |
code control 3
code line 1
| MP consolidates CTC machines 797.2 KB |
coded control 1
coded track circuits 5
color light signals 4
color position light signals 1
compact control center 1
| Product news: Compact control center 231.1 KB |
compact CTC machines 1
| Signaling to cut expenses in '58 411.4 KB |
consolidated dispatching 2
| MP consolidates CTC machines 797.2 KB |
| RS&C 50th anniversary: Looking ahead 652.9 KB |
Corbin, KY 1
Corning, NY 1
Cotley Jct., MA 1
| Remote control saves money 868.5 KB |
Council Bluffs, IA 1
| CTC Handles 15 More Trains 2.2 MB |
crossing indicators 1
crossing watchmen 1
Crystal Lake, IL 1
De Kalb, IL 1
dead sections 1
Delaware & Hudson 1
Delaware Water Gap, PA 1
| News briefs. 1958-01 1.8 MB |
Delaware, Lackawanna & Western 2
| DL&W-Erie joint operation is ready to go 643.6 KB |
| News briefs. 1958-01 1.8 MB |
Delphi, IN 1
| News briefs. 1958-01 1.8 MB |
Denver & Rio Grande Western 2
Des Plaines, IL 1
desk lever interlocking 1
Detroit, MI 1
| Central opens Young Yard 2.5 MB |
dragging equipment detectors 2
Dunn, John H. 3
| RS&C 50th anniversary: Foreword 502.5 KB |
| RS&C 50th anniversary: Looking ahead 652.9 KB |
| Six editors in 50 years 253.5 KB |
Durand, MI 1
| One track does work of two 521.4 KB |
earthquake detectors 2
East Flint, MI 1
| One track does work of two 521.4 KB |
East St. Louis, IL 1
East Water Street interlocking, Elmira, NY 1
economics 1
| RS&C 50th anniversary: Looking ahead 652.9 KB |
El Dorado, AR 1
| MP consolidates CTC machines 797.2 KB |
electric interlocking 1
electric lock switches 2
| DL&W-Erie joint operation is ready to go 643.6 KB |
| One track does work of two 521.4 KB |
electro-mechanical interlocking 1
electro-pneumatic interlocking 1
electronic track circuits 1
Elgin, Joliet & Eastern 2
Elkhart, IN 3
Elmira, NY 1
Endicott, NY 1
England 2
Englewood Yard, Chicago, IL 1
| Central opens Young Yard 2.5 MB |
entry-exit interlocking 1
Erie 4
Euston Jct., England 1
| Programmed interlocking control 337.6 KB |
false proceed failures 1
false restrictive failures 1
Federal Communications Commission 1
| Split-channel radio 649.4 KB |
Fifth Street interlocking, Elmira, NY 1
Flint, MI 1
| C&O Has Good Ideas in CTC 2.5 MB |
flood detectors 1
Fonda, NY 1
Foremost, GA 1
General Railway Signal 14
Gibson interlocking, Corning, NY 1
Gibson, IN 1
| Central opens Young Yard 2.5 MB |
grade elimination 1
grade time controls 1
Grand Blanc, MI 1
| C&O Has Good Ideas in CTC 2.5 MB |
Grand Trunk Western 4
Great Northern 2
Greater Winnipeg Water District 1
Green Bay, WI 1
Griswold Signal 2
| CP consolidates interlockings 2.0 MB |
| Crossing protection program saves 59% 553.4 KB |
Gurdon, AR 1
| MP consolidates CTC machines 797.2 KB |
Hall disc signals 1
Hall Switch & Signal 1
Hall, Thomas S. 1
Hamilton Jct., Ontario 1
Hamilton West, Ontario 1
Hamilton, Ontario 1
hand-throw switches 1
| How to adapt CTC to your traffic 748.3 KB |
Hayford, Chicago, IL 1
Hermon Pond, ME 1
high-speed turnouts 3
highway crossings 10
holding signals 2
Holly, MI 1
| C&O Has Good Ideas in CTC 2.5 MB |
Hope, AR 1
| MP consolidates CTC machines 797.2 KB |
Hornell, NY 1
hotbox detectors 4
hump yard 1
hump yards 1
Hunters Point, Queens, NY 1
Identra 1
Illinois Central 3
index 1
| 1958 index 2.8 MB |
Indiana Harbor Belt 1
interlocking 13
interlocking towers 1
| Signaling to cut expenses in '58 411.4 KB |
Interstate Commerce Commission 4
| Decrease in signal failures reported by ICC Bureau of Safety 629.9 KB |
| DL&W-Erie joint operation is ready to go 643.6 KB |
| News briefs. 1958-01 1.8 MB |
| Signal Inspection Act 214.8 KB |
Jackson, MI 2
| Central opens Young Yard 2.5 MB |
| News briefs. 1958-01 1.8 MB |
Jersey City, NJ 1
Kankakee, IL 1
| Central opens Young Yard 2.5 MB |
Kansas City, MO 1
Kellenberger, K. E. 1
| Six editors in 50 years 253.5 KB |
Kenilworth, IL 1
Kennington, England 1
| Programmed interlocking control 337.6 KB |
Lake Hopatcong, NJ 1
| News briefs. 1958-01 1.8 MB |
Landers Yard, Chicago, IL 1
Leicester, England 1
| Programmed interlocking control 337.6 KB |
Liberty Street interlocking, Binghamton, NY 1
Lincoln Park, NJ 1
| News briefs. 1958-01 1.8 MB |
Logansport, IN 1
| News briefs. 1958-01 1.8 MB |
London Transport 1
| Programmed interlocking control 337.6 KB |
London, England 1
| Programmed interlocking control 337.6 KB |
loss of shunt 1
| RS&C 50th anniversary: Looking ahead 652.9 KB |
Louisville & Nashville 1
Loyall, KY 1
Mackenzie, L. B. 1
| Six editors in 50 years 253.5 KB |
Maine Central 1
Malvern, AR 1
| MP consolidates CTC machines 797.2 KB |
manual block signaling 1
McArthur Jct., Manitoba 1
McKnight, Robert W. 1
| Six editors in 50 years 253.5 KB |
mechanical interlocking 4
Mendota, IL 1
Michigan Central 1
microwave 1
Milwaukee, WI 1
Minneapolis, MN 1
Missouri Pacific 3
Mitchell, V. S. 1
Monon 1
| News briefs. 1958-01 1.8 MB |
Morse, Samuel F. B. 1
Mount Morris, MI 1
| C&O Has Good Ideas in CTC 2.5 MB |
New York Central 7
New York City Transit 2
New York, New Haven & Hartford 2
| Improved signaling results from grade elimination 883.1 KB |
| Remote control saves money 868.5 KB |
New York, NY 1
Nichols, NY 1
Niles, MI 1
| Central opens Young Yard 2.5 MB |
Norfolk & Western 3
Oakville, ON 1
Osawatomie, KS 1
Owego, NY 1
Pacific Great Eastern 1
Paterson, NJ 1
| News briefs. 1958-01 1.8 MB |
Pauline, KS 1
Pennsylvania 4
Peru, IN 1
| News briefs. 1958-01 1.8 MB |
Philadelphia & Erie 1
Philadelphia, PA 1
Pilgrim, MA 1
| Remote control saves money 868.5 KB |
Pittsfield, ME 1
Plymouth, MI 1
| C&O Has Good Ideas in CTC 2.5 MB |
polarized track circuits 1
Port Huron, MI 1
| One track does work of two 521.4 KB |
Porter, IN 2
| Central opens Young Yard 2.5 MB |
| News briefs. 1958-01 1.8 MB |
position light signals 1
Potomac Yard, Alexandria, VA 2
power switches 3
| How to adapt CTC to your traffic 748.3 KB |
| Nine layouts in one interlocking 1.7 MB |
| Remote control saves money 868.5 KB |
Proviso, IL 1
Quebec, North Shore & Labrador 1
Queens, NY 1
Queensboro Plaza, Queens, NY 1
Racine, WI 1
radio 3
| Chicago Transit tests train-phone 282.5 KB |
| RS&C 50th anniversary: Looking ahead 652.9 KB |
| Split-channel radio 649.4 KB |
radio carrier 1
radio frequency allocation 1
| Split-channel radio 649.4 KB |
railcar identification 1
| RS&C 50th anniversary: Looking ahead 652.9 KB |
Railway Signaling 2
Railway Signaling & Communications 2
Reading 2
Reading, PA 1
remote control interlocking 1
| Remote control saves money 868.5 KB |
remote-control interlocking 5
retarder yard 1
retarder yards 2
| RS&C 50th anniversary: Looking ahead 652.9 KB |
| Signaling to cut expenses in '58 411.4 KB |
Richmond, Fredericksburg & Potomac 2
Robert R. Young Yard, Elkhart, IN 1
| Central opens Young Yard 2.5 MB |
Robinson, William 1
Rochester, NY 1
| Signaling to cut expenses in '58 411.4 KB |
Rockford, IL 1
Rockwell St. Yard, Chicago, IL 1
route interlocking 3
Route lever interlocking 1
RR Jct., Gurdon, AR 1
| MP consolidates CTC machines 797.2 KB |
RS&C 50th anniversary 4
Saginaw, MI 1
| C&O Has Good Ideas in CTC 2.5 MB |
Salem, MA 1
| B&M goes underground 725.7 KB |
Seaboard Air Line 1
Seaboard Air Lines 1
searchlight signals 4
| B&M goes underground 725.7 KB |
| CP consolidates interlockings 2.0 MB |
| CTC saves time and money for the Louisville & Nashville 446.6 KB |
| Nine layouts in one interlocking 1.7 MB |
self-propelled railcars 1
| RS&C 50th anniversary: Looking ahead 652.9 KB |
semaphore signals 1
Servo 1
shunting sensitivity 1
siding-to-siding blocks 1
Signal Engineer 1
| Six editors in 50 years 253.5 KB |
Signal Inspection Act 1
| Signal Inspection Act 214.8 KB |
signal lighting 1
| RS&C 50th anniversary: Looking ahead 652.9 KB |
Silvis, IL 1
| Signaling to cut expenses in '58 411.4 KB |
Simmons, H. H. 1
| Six editors in 50 years 253.5 KB |
snow 1
| What's the answer? Snow on signals 711.5 KB |
snow detectors 2
snow melters 1
snow shields 1
| What's the answer? Snow on signals 711.5 KB |
Southern 2
Southern Pacific 6
Spaulding, IL 1
| CTC Handles 15 More Trains 2.2 MB |
spring switches 3
St. Boniface, Manitoba 1
St. Louis Southwestern 1
| News briefs. 1958-01 1.8 MB |
St. Louis-San Francisco 4
St. Paul, MN 1
| News briefs. 1958-01 1.8 MB |
Stanley, OH 1
station time controls 1
station waiting room automation 1
table interlocking 1
telegraph 2
telephone dispatching 1
| RS&C 50th anniversary: Looking ahead 652.9 KB |
Terminal Association of St. Louis 1
Terminal Cut-off Jct., Manitoba 1
testing 1
Texarkana, AR 1
| MP consolidates CTC machines 797.2 KB |
Texas & Pacific 1
| What's the answer? Crossing circuits 254.4 KB |
The Signal Engineer 1
Thurston Street interlocking, Elmira, NY 1
time locking 2
timetable and train order 2
Toledo, OH 2
| Central opens Young Yard 2.5 MB |
| Signaling to cut expenses in '58 411.4 KB |
Tower A-3, Chicago, IL 1
| CTC Handles 15 More Trains 2.2 MB |
Tower B-12, Franklin Park, IL 1
| CTC Handles 15 More Trains 2.2 MB |
Tower B-17, Bensenville, IL 1
| CTC Handles 15 More Trains 2.2 MB |
Tower B-35, Elgin, IL 1
| CTC Handles 15 More Trains 2.2 MB |
track circuits 1
train orders 1
train-phone 1
| Chicago Transit tests train-phone 282.5 KB |
Trakode 3
Transcona, Manitoba 1
trap circuits 1
trip stops 1
Union Pacific 2
Union Route interlocking 1
Union Switch & Signal 9
United Kingdom 1
| Programmed interlocking control 337.6 KB |
United New Jersey 1
Van Auken, Kenneth L. 1
| Six editors in 50 years 253.5 KB |
Vestal, NY 1
Wabash 4
Waverly, NY 1
Welch, Ashbel 1
West Binghamton, NY 1
West Flint, MI 1
| One track does work of two 521.4 KB |
West Tappan, MI 1
| One track does work of two 521.4 KB |
Western Ave., Chicago, IL 1
Western Electric 1
Western Pacific 1
| What's the answer? CTC locking 269.2 KB |
Western Railroad Supply 1
Western Union 1
White, Harvey 1
| Six editors in 50 years 253.5 KB |
Winnipeg, Manitoba 1
Worcester, MA 1
Worley, SC 1
Wyeville, WI 1
| News briefs. 1958-01 1.8 MB |
yard track indicators 1
Young, Robert R. 1
| Central opens Young Yard 2.5 MB |