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AN INTRODUCTION TO - page 11 / 72

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Earlier System of Suburban Train Operations :

Suburban operation is divided into 2 controlled sections viz. Churchgate- Andheri (16 stations) and Andheri -Virar (12 stations). Controllers in the earlier system of working, used to collect information on telephone about the actual departure of each trains from the important nominated stations only, as it was not practical to collect timings from all 28 stations, keeping in view that every 45 seconds a train is passing a station. Departure timings were recorded in a pre- printed chart, each page covering ½ hour duration. Controllers in case of diversion/cancellation of trains informed various Assistant Station Masters (ASMs), who in turn were required to take action for manual updating of train indicator display boards.

Constraints of the Earlier Working:

Following are the constraints of the earlier system:-

Controller was essentially a recorder rather than managing the train movements. Information was not available immediately regarding unusual incidents at field. Decision/Action taken was delayed. Decisions taken were ad-hoc. The information displaying on Indicator display may not math with actual train- running information. Delay in announcements.

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