Eastern-US ABS Signalling Example: PRR Cleveland Line

Railway Signalling and Operations

Eastern-US ABS Signalling Example: PRR Cleveland Line


[ Note to Contributors | Copyright & Licensing Agreement ]

Acknowledgements


Notes

This page is not yet complete. Some things may be inaccurate or incomplete. Comments and corrections are encouraged.

The track layout, switch frog numbers, and interlocking names, where given, are correct. Milepost numbers are largely if not entirely correct. The general signal arrangement is correct: i.e., mast vs. bridge, number of heads, number of lamps on each head. Aspects are guesses based on the lamp arrangement; some aspects (especially flashing aspects, if not witnessed) may be missing. If anyone has this information, please email me.

The main tracks have been drawn thicker for clarity; this is generally not done on railroad blueprints unless there is a large number of subsidiary tracks (e.g. near/through a yard). Road crossing mileposts are taken from milepost numbers of a phone cable buried alongside the right of way. Mileposts of railroad structures (typically given to the hundredths of a mile) are taken from the notation on the structure itself.

Legend

Red tint Interlocking limits (Interlocking Rules apply).
Green tint Automatic Block Signal System ("ABS") rules
AP Approach lighted position-light signal
1121 Signal near milepost 112.0 through 112.2, governing westbound trains (odd number). (When specific track numbers needed, the number is rendered "1121-1" or "1121-2", where the last number is the track number.) Track #1 is the eastbound track, #2 the westbound.

Key:
I=Interlocking; IS=Interlocking Station; BS=Block Station; TOS=Train Order Station; BLS=Block Limit Station; MP=Milepost; R=Remotely controlled from; Dspr=Dispatcher; X=In Service Full Time.
I IS BS
TOS
BLS Station MP Siding Note
X .. .. .. CP-HARVARD
    (W&LE Crossing)  R-Dspr
116.0    
X .. .. .. CP-WHITE
    (Harvard Conn.)  R-Dspr
114.2    
.. .. .. .. HBD-DED ("White") 112.9    
X .. .. .. CP-MAPLE
    R-Dspr
110.3    
X .. .. .. CP-WALTON
    R-Dspr
107.4    
.. .. .. .. WHEELOCK 106.5    
.. .. .. .. MOTOR YARD 105.4    
.. .. .. .. TWIN 102.9    
X .. .. .. CP-HUDSON
    (Akron Ind.)  R-Dspr
96.9 5850 V  
.. .. .. .. Division Post -
    Pittsburgh & Dearborn Divisions
96.3?    
.. .. .. .. HBD-DED ("Hudson") 94.8 5850 ^  
.. .. .. .. DED ("East Rock") 89.5    
X .. .. .. CP-RAVE
    R-Dspr
85.9    
.. .. .. .. HBD-DED ("Rootstown") 81.0    
.. .. .. .. ATWATER 75.0    
X .. .. .. CP-ALLIANCE
    (Fort Wayne Line)    R-Dspr
66.9    

Eastbound
(Read Down)

Westbound
(Read Up)

photos
not
yet
available








photos
not
yet
available


Home
Mark's Railroad-Related Stuff
Railroad Books of Rules and Signalling: A Home Page
Example of Eastern ABS Signalling


Mark D. Bej
bejm@eeg.ccf.org
+1 216-444-0119
1998.04.06