Railroad Abbreviations

Below is a the list of Abbreviations showing in the 7th Edition of GCOR Effective April 1, 2015.

ABS ……….. Automatic Block Signal System
MW ………… Maintenance of Way
ACS ……….. Automatic Cab Signal System
N ……………. North
AMTK ……… Amtrak
NO …………. Number
ATC ………… Automatic Train Control
NSS ……….. North Siding Switch
ATS ………… Automatic Train Stop
NWD ………. Northward
AUTH ……… Authority
OK …………. Correct
BO …………. Bad Order
OOS ………. Out of Service
BRN ……….. Branch
OPR ……….. Operator
BRT ……….. Block Register Territory
ORIG ……… Originating
C ……………. Center
PSGR …….. Passenger
C & E ……… Conductor and Engineer
RC …………. Radio Channel
COFC …….. Container on Flat Car
RCO ……….. Remote Control Operator
CONDR ….. Conductor
RCZ ……….. Remote Control Zone
CP ………….. Control Point
RECD …….. Received
CTC ……….. Centralized Traffic Control
RE ………….Region
DCS ……….. Dual Control Switch
S ……………. South
DISPR ……. Dispatcher
SDG ……….. Siding
DIST ………. District
SSS ……….. South Siding Switch
DIV ………… Division
SUB ……….. Subdivision
DT ………….. Double Track
SUBDIV ….. Subdivision
DTC ……….. Direct Traffic Control
SUPT ……… Superintendent
E ……………. East
SW …………. Switch
ENG ……….. Engine
SWD ………. Southward
ENGR …….. Engineer
TOFC ……… Trailer on Flat Car
ESS ……….. East Siding Switch
TRK ……….. Track
EWD ………. Eastward
TRN ……….. Train
FRT ………… Freight
TWC ………. Track Warrant Control
HER ……….. Head End Restriction
W …………… West
IM …………… Intermodal
WSS ………. West Siding Switch
JCT ………… Junction
WWD ……… Westward
MAX ……….. Maximum
XO …………. Crossover
MMT ………. Multiple Main Track
YD ………….Yard
MP …………. Mile Post
YL ………….. Yard Limits
MPH ……….. Miles Per Hour
YM …………. Yardmaster
MT …………. Main Track
Use the normal abbreviations for names of months.

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