Ten men maintain four interlocking plants and 110 semaphore signals at an efficiency of 99.995%. (3500 w.) (No. 59689)
Signal maintenance methods on the New York, Westchester and Boston Railway
Elec Ry Jour
1915
Ills.
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
The New York, Westchester and Boston railway
Engineering Index Backfile | 1905
The New York, Westchester and Boston railway
Engineering Index Backfile | 1912
The New York, Westchester and Boston railway
Engineering Index Backfile | 1905
The signal system of the New York, Westchester and Boston railway
Engineering Index Backfile | 1912
The New York, Westchester and Boston
Engineering Index Backfile | 1912
|