Railway Signaling: 1944

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"S" markers 3
CTC On 185 Miles on Canadian National   12.3 MB
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
Signals Direct Trains at Junction On the Denver & Rio Grande Western and the Denver & Salt Lake   2.8 MB
1944 1
1944 index   3.6 MB
absolute permissive block signaling 1
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
accident 3
A Collision Despite Automatic Signals   2.7 MB
Head-End Collision in Manual Block   874.3 KB
New York Central Installs NX Interlocking at Utica   5.7 MB
all-relay interlocking 4
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
New All-Relay Interlocking at Providence, RI on the New Haven   5.8 MB
New York Central Modernizes an Interlocking   5.0 MB
Remote Control Interlocking on the D&RGW   4.3 MB
Amsterdam, NY 1
New York Central Installs Coded Track Circuits   3.9 MB
annual signaling statistics 1
ICC Annual Signaling Statistics   6.6 MB
approach lighting 1
Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB
Armitage and Sheffield Avenues, Chicago, IL 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Atchison, Topeka & Santa Fe 1
Santa Fe Installs CTC on 115.6 Miles Los Angeles to San Diego   7.2 MB
Atkinson, IL 2
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
automatic block signaling 8
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
Continuity of CTC Operation   943.3 KB
ICC Annual Signaling Statistics   6.6 MB
New York Central Installs Coded Track Circuits   3.9 MB
Signaling Construction Increased in 1943   8.8 MB
Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB
Signals Direct Trains at Junction On the Denver & Rio Grande Western and the Denver & Salt Lake   2.8 MB
automatic train stop 1
Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB
Baltimore & Ohio 3
Centennial of Morse Telegraph   6.6 MB
Remote Control Project Saves Train Time on the Baltimore & Ohio   3.5 MB
St. Louis-San Francisco Installs Centralized Traffic Control   1.1 MB
Baltimore, MD 2
Centennial of Morse Telegraph   6.6 MB
St. Louis-San Francisco Installs Centralized Traffic Control   1.1 MB
Bandini, CA 1
Santa Fe Installs CTC on 115.6 Miles Los Angeles to San Diego   7.2 MB
Blue Island, IL 2
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
Bond, CO 1
Rio Grande has Longest CTC   9.2 MB
Brady, PA 1
Pennsylvania Installs CTC On 53 Miles of Busy Single Track   8.5 MB
Bureau, IL 2
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
cab signaling 3
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
ICC Annual Signaling Statistics   6.6 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
call-on signals 1
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
Canadian National 2
Canadian National installs new type of all-relay interlocking at Montreal   7.0 MB
CTC On 185 Miles on Canadian National   12.3 MB
Canadian Pacific 2
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
Canadian Pacific Installs Centralized Traffic Control   4.4 MB
Catamount, New Brunswick 1
CTC On 185 Miles on Canadian National   12.3 MB
centralized traffic control 20
Canadian Pacific Installs Centralized Traffic Control   4.4 MB
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
Continuity of CTC Operation   943.3 KB
CTC On 185 Miles on Canadian National   12.3 MB
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
Electronics In Signaling   709.8 KB
Emergency Release for Switch Lock   1.3 MB
ICC Annual Signaling Statistics   6.6 MB
L&N Installs CTC On an Engine District   9.0 MB
N&W Installs CTC on Shenandoah Valley Line   10.2 MB
Necessities or Frills in Centralized Traffic Control   1.0 MB
Pennsylvania Installs CTC On 53 Miles of Busy Single Track   8.5 MB
Railroad Applications of Electronics   1.9 MB
Rio Grande has Longest CTC   9.2 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
Santa Fe Installs CTC on 115.6 Miles Los Angeles to San Diego   7.2 MB
Signaling Construction Increased in 1943   8.8 MB
St. Louis Southwestern Installs Centralized Traffic Control   6.9 MB
St. Louis-San Francisco Installs Centralized Traffic Control   8.3 MB
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
Chapleau, Ontario 1
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
Chicago & Eastern Illinois 1
A Collision Despite Automatic Signals   2.7 MB
Chicago Rapid Transit 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Chicago subway 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Chicago, IL 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Chicago, Rock Island & Pacific 2
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
classification yards 1
Railroad Applications of Electronics   1.9 MB
code transmitters 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
coded carrier 2
Electronics In Signaling   709.8 KB
N&W Installs CTC on Shenandoah Valley Line   10.2 MB
coded track circuits 7
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
New York Central Installs Coded Track Circuits   3.9 MB
Pennsylvania Installs CTC On 53 Miles of Busy Single Track   8.5 MB
Railroad Applications of Electronics   1.9 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
Signaling Construction Increased in 1943   8.8 MB
Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB
color light signals 1
Light-Type Signals Installed on the Reading   6.3 MB
Daggett, CA 1
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
Denver & Rio Grande Western 3
Remote Control Interlocking on the D&RGW   4.3 MB
Rio Grande has Longest CTC   9.2 MB
Signals Direct Trains at Junction On the Denver & Rio Grande Western and the Denver & Salt Lake   2.8 MB
Denver & Salt Lake 1
Signals Direct Trains at Junction On the Denver & Rio Grande Western and the Denver & Salt Lake   2.8 MB
derailment 1
New York Central Installs NX Interlocking at Utica   5.7 MB
Dexter Jct., MO 2
St. Louis Southwestern Installs Centralized Traffic Control   6.9 MB
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
Dillon, MO 1
St. Louis-San Francisco Installs Centralized Traffic Control   8.3 MB
Dotsero, CO 2
Rio Grande has Longest CTC   9.2 MB
Signals Direct Trains at Junction On the Denver & Rio Grande Western and the Denver & Salt Lake   2.8 MB
Duluth, Missabe & Iron Range 1
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
Duluth, MN 1
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
Dunsmuir, CA 1
Railroad Applications of Electronics   1.9 MB
electric interlocking 2
Military Railway Service in Italy Installs Electric Interlocking   5.6 MB
New All-Relay Interlocking at Providence, RI on the New Haven   5.8 MB
electric lock switches 3
Emergency Release for Switch Lock   1.3 MB
Santa Fe Installs CTC on 115.6 Miles Los Angeles to San Diego   7.2 MB
St. Louis Southwestern Installs Centralized Traffic Control   6.9 MB
electronics 2
Electronics In Signaling   709.8 KB
Railroad Applications of Electronics   1.9 MB
Essex Terminal 1
Canadian Pacific Installs Centralized Traffic Control   4.4 MB
five-aspect signals 1
New York Central Installs Coded Track Circuits   3.9 MB
Franz, Ontario 1
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
Gallatin, MO 1
Head-End Collision in Manual Block   874.3 KB
General Railway Signal 9
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
CTC On 185 Miles on Canadian National   12.3 MB
L&N Installs CTC On an Engine District   9.0 MB
New York Central Installs NX Interlocking at Utica   5.7 MB
New York Central Modernizes an Interlocking   5.0 MB
Remote Control Interlocking on the D&RGW   4.3 MB
Remote Control Project Saves Train Time on the Baltimore & Ohio   3.5 MB
Rio Grande has Longest CTC   9.2 MB
Signals Direct Trains at Junction On the Denver & Rio Grande Western and the Denver & Salt Lake   2.8 MB
Glenwood Springs, CO 1
Rio Grande has Longest CTC   9.2 MB
grade time signals 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Grand Junction, CO 1
Rio Grande has Longest CTC   9.2 MB
H-2 searchlight signals 1
Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB
Hall disc signals 1
Light-Type Signals Installed on the Reading   6.3 MB
Hall Switch & Signal 1
Light-Type Signals Installed on the Reading   6.3 MB
Hancock, WV 1
Remote Control Project Saves Train Time on the Baltimore & Ohio   3.5 MB
Helper, UT 2
Remote Control Interlocking on the D&RGW   4.3 MB
Rio Grande has Longest CTC   9.2 MB
Hoffmans, NY 1
New York Central Installs Coded Track Circuits   3.9 MB
Illinois Central 1
Railroad Applications of Electronics   1.9 MB
Illmo, MO 2
St. Louis Southwestern Installs Centralized Traffic Control   6.9 MB
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
index 1
1944 index   3.6 MB
inductive train communication 1
Inductive Train Communication   3.9 MB
interlocking 12
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Canadian National installs new type of all-relay interlocking at Montreal   7.0 MB
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
Canadian Pacific Installs Centralized Traffic Control   4.4 MB
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
ICC Annual Signaling Statistics   6.6 MB
Military Railway Service in Italy Installs Electric Interlocking   5.6 MB
New All-Relay Interlocking at Providence, RI on the New Haven   5.8 MB
New York Central Installs NX Interlocking at Utica   5.7 MB
New York Central Modernizes an Interlocking   5.0 MB
Remote Control Project Saves Train Time on the Baltimore & Ohio   3.5 MB
Signaling Construction Increased in 1943   8.8 MB
Interstate Commerce Commission 3
A Collision Despite Automatic Signals   2.7 MB
Head-End Collision in Manual Block   874.3 KB
ICC Annual Signaling Statistics   6.6 MB
Iron Jct., MN 1
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
Italian State Railways 1
Military Railway Service in Italy Installs Electric Interlocking   5.6 MB
Italy 1
Military Railway Service in Italy Installs Electric Interlocking   5.6 MB
Keenan, MN 1
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
Kremmling, CO 1
Signals Direct Trains at Junction On the Denver & Rio Grande Western and the Denver & Salt Lake   2.8 MB
Las Vegas, NV 2
Railroad Applications of Electronics   1.9 MB
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
Longview, TX 1
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
Los Angeles, CA 1
Santa Fe Installs CTC on 115.6 Miles Los Angeles to San Diego   7.2 MB
Louisville & Nashville 2
Emergency Release for Switch Lock   1.3 MB
L&N Installs CTC On an Engine District   9.0 MB
manual block signaling 2
Head-End Collision in Manual Block   874.3 KB
ICC Annual Signaling Statistics   6.6 MB
McKeesport, PA 1
Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB
mechanical interlocking 3
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
Military Railway Service in Italy Installs Electric Interlocking   5.6 MB
New All-Relay Interlocking at Providence, RI on the New Haven   5.8 MB
Military Railway Service 1
Military Railway Service in Italy Installs Electric Interlocking   5.6 MB
Missouri Pacific 1
St. Louis Southwestern Installs Centralized Traffic Control   6.9 MB
Mobile, AL 1
L&N Installs CTC On an Engine District   9.0 MB
Moffat Tunnel 2
Rio Grande has Longest CTC   9.2 MB
Signals Direct Trains at Junction On the Denver & Rio Grande Western and the Denver & Salt Lake   2.8 MB
Montgomery, AL 1
L&N Installs CTC On an Engine District   9.0 MB
Montreal, Quebec 1
Canadian National installs new type of all-relay interlocking at Montreal   7.0 MB
Morris, IL 2
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
Morse, Samuel F. B. 2
Centennial of Morse Telegraph   6.6 MB
St. Louis-San Francisco Installs Centralized Traffic Control   1.1 MB
motor car indicators 1
St. Louis-San Francisco Installs Centralized Traffic Control   8.3 MB
Mount Vernon, NY 1
New York Central Modernizes an Interlocking   5.0 MB
multiple-aspect signaling 1
New York Central Installs Coded Track Circuits   3.9 MB
Nashville, Chattanooga & St. Louis 1
Emergency Release for Switch Lock   1.3 MB
New York Central 3
New York Central Installs Coded Track Circuits   3.9 MB
New York Central Installs NX Interlocking at Utica   5.7 MB
New York Central Modernizes an Interlocking   5.0 MB
New York, New Haven & Hartford 1
New All-Relay Interlocking at Providence, RI on the New Haven   5.8 MB
Norfolk & Western 1
N&W Installs CTC on Shenandoah Valley Line   10.2 MB
NX interlocking 2
New York Central Installs NX Interlocking at Utica   5.7 MB
New York Central Modernizes an Interlocking   5.0 MB
Oil City, PA 1
Pennsylvania Installs CTC On 53 Miles of Busy Single Track   8.5 MB
Orestod, CO 1
Signals Direct Trains at Junction On the Denver & Rio Grande Western and the Denver & Salt Lake   2.8 MB
Orleans Road, WV 1
Remote Control Project Saves Train Time on the Baltimore & Ohio   3.5 MB
Park Jct., PA 1
Light-Type Signals Installed on the Reading   6.3 MB
Pennsylvania 3
Inductive Train Communication   3.9 MB
Pennsylvania Installs CTC On 53 Miles of Busy Single Track   8.5 MB
Train Telephone Communication   4.1 MB
Pere Marquette 1
Canadian Pacific Installs Centralized Traffic Control   4.4 MB
Philadelphia, PA 1
Light-Type Signals Installed on the Reading   6.3 MB
Pittsburgh & Lake Erie 1
Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB
position light signals 1
N&W Installs CTC on Shenandoah Valley Line   10.2 MB
power spring switches 1
Remote Control Interlocking on the D&RGW   4.3 MB
Providence, RI 1
New All-Relay Interlocking at Providence, RI on the New Haven   5.8 MB
railroad radio 1
Railroad Applications of Electronics   1.9 MB
Reading 1
Light-Type Signals Installed on the Reading   6.3 MB
Reading, PA 1
Light-Type Signals Installed on the Reading   6.3 MB
Red Bank, PA 1
Pennsylvania Installs CTC On 53 Miles of Busy Single Track   8.5 MB
Redding, CA 1
Railroad Applications of Electronics   1.9 MB
relay interlocking 1
Canadian National installs new type of all-relay interlocking at Montreal   7.0 MB
remote control 2
Remote Control Interlocking on the D&RGW   4.3 MB
Remote Control Project Saves Train Time on the Baltimore & Ohio   3.5 MB
restricted speed 1
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
Rock Island, IL 2
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
route interlocking 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Royal Gorge 1
Rio Grande has Longest CTC   9.2 MB
San Diego, CA 1
Santa Fe Installs CTC on 115.6 Miles Los Angeles to San Diego   7.2 MB
Savannah, GA 1
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
Schreiber, Ontario 1
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
Seaboard Air Line 1
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
searchlight signals 5
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
Light-Type Signals Installed on the Reading   6.3 MB
New All-Relay Interlocking at Providence, RI on the New Haven   5.8 MB
New York Central Installs Coded Track Circuits   3.9 MB
Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB
Seventeenth Street, Chicago, IL 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Silvis, IL 2
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
Sir Johns Run, WV 1
Remote Control Project Saves Train Time on the Baltimore & Ohio   3.5 MB
Southern Pacific 1
Railroad Applications of Electronics   1.9 MB
Sparta, MN 1
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
spring switches 5
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
L&N Installs CTC On an Engine District   9.0 MB
Remote Control Interlocking on the D&RGW   4.3 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
Spring Valley, IL 2
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
Spruce, MN 1
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
St. Louis Southwestern 2
St. Louis Southwestern Installs Centralized Traffic Control   6.9 MB
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
St. Louis-San Francisco 1
St. Louis-San Francisco Installs Centralized Traffic Control   8.3 MB
station time signals 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Swedeborg, MO 1
St. Louis-San Francisco Installs Centralized Traffic Control   8.3 MB
telegraph 2
Centennial of Morse Telegraph   6.6 MB
St. Louis-San Francisco Installs Centralized Traffic Control   1.1 MB
telegraph centennial 2
Centennial of Morse Telegraph   6.6 MB
St. Louis-San Francisco Installs Centralized Traffic Control   1.1 MB
Terre Haute, IN 1
A Collision Despite Automatic Signals   2.7 MB
Texarkana, AR 1
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
Texas & Pacific 1
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
Thalmann, GA 1
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
track circuits 2
Necessities or Frills in Centralized Traffic Control   1.0 MB
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
train stops 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
train telephone communication 1
Train Telephone Communication   4.1 MB
Two Harbors, MN 1
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
U. S. Army 1
Military Railway Service in Italy Installs Electric Interlocking   5.6 MB
Union Pacific 2
Railroad Applications of Electronics   1.9 MB
Track Circuits on Passing Tracks in CTC Territory   941.8 KB
Union Route interlocking 1
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Union Switch & Signal 15
Automatic Signaling, Train Stop, and Route Interlocking Installed in the Chicago Subways   8.6 MB
Canadian National installs new type of all-relay interlocking at Montreal   7.0 MB
Canadian Pacific Installs Automatic Block Signaling   6.8 MB
Coded Track Circuits for CTC and Cab Signaling   4.0 MB
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
Inductive Train Communication   3.9 MB
N&W Installs CTC on Shenandoah Valley Line   10.2 MB
New All-Relay Interlocking at Providence, RI on the New Haven   5.8 MB
Pennsylvania Installs CTC On 53 Miles of Busy Single Track   8.5 MB
Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
Santa Fe Installs CTC on 115.6 Miles Los Angeles to San Diego   7.2 MB
Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB
St. Louis Southwestern Installs Centralized Traffic Control   6.9 MB
St. Louis-San Francisco Installs Centralized Traffic Control   8.3 MB
Train Telephone Communication   4.1 MB
Utica, NY 1
New York Central Installs NX Interlocking at Utica   5.7 MB
Wabash 1
Head-End Collision in Manual Block   874.3 KB
Walkerville Jct., Ontario 1
Canadian Pacific Installs Centralized Traffic Control   4.4 MB
Washington, DC 2
Centennial of Morse Telegraph   6.6 MB
St. Louis-San Francisco Installs Centralized Traffic Control   1.1 MB
Wayne Jct., PA 1
Light-Type Signals Installed on the Reading   6.3 MB
Wellington, Montreal, Quebec 1
Canadian National installs new type of all-relay interlocking at Montreal   7.0 MB
Windsor Jct., Nova Scotia 1
CTC On 185 Miles on Canadian National   12.3 MB
Windsor, Ontario 1
Canadian Pacific Installs Centralized Traffic Control   4.4 MB
Wolf, MN 1
CTC Speeds Ore Traffic On the DM&IR   4.6 MB
Woodlane, PA 1
Light-Type Signals Installed on the Reading   6.3 MB
Yermo, CA 1
Railroad Applications of Electronics   1.9 MB
Youngstown, OH 1
Signaling Modernized On the Pittsburgh & Lake Erie   4.7 MB

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