N&W MANUAL BLOCK Statistics, Jan 1, 1910

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>From Signal Engineer magazine, vol. 3, June 1910, page 17. 

MANUAL BLOCK OPERATED BY TELEGRAPH: 
1015.9 miles of road, 1117.9 miles of track 

MANUAL BLOCK OPERATED BY TELEPHONE: 
490.9 miles of road, 550.6 miles of track 

CONTROLLED MANUAL BLOCK: 0 

ELECTRIC STAFF SYSTEM: 0 

Number of Block Stations: 163 
Number of Block Stations Closed Part Time: 36 

-- abram burnett 


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