N&W Interlocking Statistics, January 1, 1914 - MORE

[NW Mailing List]

>From a chart titled Number, Types and Characteristics of Interlocking Plants in Service January 1, 1914, from Signal Engineer, vol. 7, no. 6, p. 171, June 1914. 


TYPES OF PLANT 
Mechanical - 41 
Electro-mechanical - 3 
Pneumatic - 0 
Electro-pneumatic - 1 
Electric - 11 
Total of All Types - 56 

Total Number of Working Levers - 1224 

SIGNALS - HIGH 
Semaphore - 480 
Disc - 0 
Light - 0 

DWARF SIGNALS 
Semaphore - 281 
Disc - 0 
Light - 0 

OTHER TYPES - 4 

Upper Quadrant - 204 
Lower Quadrant - 555 
3 Position - 70 
2 position - 689 

Number of Switches - 336 
Number of Derails - 265 

-- abram burnett 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://six.pairlist.net/pipermail/nw-mailing-list/attachments/20130630/c2c96b33/attachment.htm>