Are there any in-cab signalling methods, ATP, etc. used by IR?
[5/99] Some WAP / WAM models have in-cab AWS / ATS (auxiliary warning system, automatic train stop). AWS provides prior in-cab notification of distant or home signals that are displaying danger or ‘on’. ATS provides for a locomotive to be brought to a halt in case it overshoots an ‘on’ signal that it should not have. This has been tried out on the Mughalsarai-Howrah section (ER) but is not in wide use although it was installed in the 1980s. (Pilferage of the track equipment is said to have been one reason for slow adoption by the railways.) Some Mumbai-area suburban EMU routes of WR and CR have ATS and AWS systems (WR had AWS from the 1980s, while CR got it more recently, in 2000). If a signal at Caution is passed at above 25km/h, a buzzer sounds in the cabin and the motorman has to respond within 15 seconds to avoid application of the emergency brakes. The system also halts the EMU rake if a signal at danger is passed. The lineside transmitter for this is placed in between the rails a
