COCR
Confirmatory Oscillograph Car Run
CTR
Complete Track Renewal
CWR
Continuous Welded Rail
LWR
Long Welded Rail
OMS
Oscillation Monitoring System
TBTR
Through Bridge Timber Renewal
TFR
Through Fitting Renewal
T/out
Turnout
TRC
Track Recording Car
TRR
Through Rail Renewal
TSR
Through Sleeper Renewal
TTR
Through Turnout Renewal
TWR
Through Weld Renewal
USFD
Ultrasonic Flaw Detection
WF
Weak Field
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