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What are W/L signs in Railways??  
1 Answers
Feb 20 2012 (12:11)

Entry# 1021     
Begins Falls Rises ™~
What are W/L signs in Railways??

Feb 20 2012 (12:09)
Blog Post# 353711-14     
Amita   Added by: Begins Falls Rises ™~  Feb 20 2012 (12:11)
Whistle Indicators
'W', or 'W/L' on a square yellow board. The 'W' is a general whistle indicator while the 'W/L' stands for Whistle for Level Crossing. The latter is also seen in Hindi with the characters 'see/pha' == 'seetee bajao - phatak'). Usually provided on approach to unmanned level crossings (and for manned level crossings without a clear view) about 250m away from the level crossing. Similarly, a 'W/B' sign is seen (less often) on approach to a bridge.
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