Why are multiple aspect signalling systems used? What was wrong with the older systems which had two aspects?

14-07-2019

Multiple aspect signals, by providing several intermediate speed stages between 'clear' and 'on', allow high-speed trains sufficient time to brake safely if required. This becomes very important as train speeds rise. Without multiple-aspect signals, the stop signals have to be placed very far apart to allow sufficient braking distance, and this reduces track utilization. At the same time, slower trains can also be run closer together on track with multiple aspect signals. Source -

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Why are there so many express and long-distance trains to or from obscure locations like Manduadih, Habibganj, etc.?
July 19, 2019

Often, the terminus for long-distance trains into a city or town is not the railway station that is the "main" station for that town, but rather some outlying or suburban station that can better handle the long-distance traffic. The names of the trains, unfortunately, often reflect these actual termini rather than the "real" destination to which

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Why do some stations have the state names or other regional names as suffixes? E.g., Chandrapur (Maharashtra) or Srirampur (Assam)?
July 19, 2019

This is done when there may be other towns of the same name elsewhere that may perhaps be as prominent or even better known than the station in question. Adding the state name as a suffix helps to disambiguate the station from the other towns of the same name. E.g., Berhampur (West Bengal) and Berhampur (Orissa). Hyderabad station is often

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What other suffixes such as ‘Road’ are used for station names in India?
July 19, 2019

See the list of common suffixes in Indian place names (which is a general, not railway-specific list). Many suffixes are self-explanatory. For instance, many cities have a Cantonment station which used to be where the British established military cantonments (and where significant military establishments may still exist. In addition to the Indian

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Why are so many railway stations named “[something] Road”?
July 19, 2019

The "Road" after the station indicates that it's the nearest railhead for that particular town. The road to that town originates at this station:you still need to travel a while by road to get to that town. There are a number of examples: Kodaikanal Road, Khurda Road, Mantralayam Road, Jajhpur Kheonjar Road, Nasik Road, etc. Jajpur Keonjhar Road

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How many stations does IR have?
July 19, 2019

This number is naturally a moving target, as IR is constantly opening new stations. Moreover, it is difficult to get a precise count of "stations" when considering junctions that have different gauges, stations with remote or differently named cabins or signalling sheds, derelict or abandoned stations, metropolitan areas with many stations and

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What are the different classes of stations?
July 19, 2019

IR's classification of stations is linked to their rules for block system working. Class A: Such a station is one where the Line Clear indication for the block may not be given unless the line where the train is to be received is clear at least for up to the starter signal (or, in some cases, for at least 400m ahead of the home signal). These are

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