What other coaches have been used lately?

22-06-2019

In the late 1990's RCF, under the auspices of a UN-assisted program, came out with some prototype coaches of new designs, classified IRX/IR15 (IRW?), IRY/IR20, and IRZ/IR30. The first part of the code (e.g., IRY) refers to the shell design, and the second part (e.g. IR20) to the bogie design.) The IR20 bogies are based on the Eurofima design (in fact, they are said to be more or less an exact copy of the design). The IRW coach is said to have had a variety of passenger-friendly and track-friendly features such as chemical toilets. As its production costs were projected to be too high, this design never entered serial production. The sole coach of this design made by RCF never entered

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What does it mean when a passenger or freight rake is referred to as a ’15/30′ load, or a ’36 unit’ load?
July 17, 2019

In order to compute the load to be hauled by the locomotive(s), IR personnel use some rules of thumb. An 8-wheeled passenger coach (of any kind) is counted as 2 units, a 4-wheeled wagon as 1 unit, 8-wheeled wagons as 2, 2.5, or 3 units depending on the payload capacity. A 36 unit load for a passenger train, therefore, may refer to 18 coaches each

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What else is specified in the working timetable?
July 17, 2019

The working timetable has a lot of other operational details. It has the load table specifying what loads each kind of locomotive is allowed to haul on sections covered by the timetable. In addition to the schedules for trains including the make-up time, etc., as noted above, it sometimes has a crossing and precedence table that describes which

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How is that trains that are delayed unexpectedly at some point (sometimes) still reach their destinations on time or nearly so?
July 17, 2019

IR provides generous amounts of make-up time or slack (also known as Extra Time Allowed (marked 'EA' in the working timetable), or margin) in the schedules for most long-distance trains. Delays of half-an-hour to a couple of hours are almost inevitable in the running of most long-distance trains (except the 'prestigious' ones such as the

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What’s the ‘normal running time’ of a train on a section of track?
July 17, 2019

The normal running time of a train between two points (usually two stations) is defined as the time it takes the train to travel between those points at the booked speed allowed for that train on that section, with allowances for permanent or temporary speed restrictions in effect, the time for acceleration and deceleration between the stations,

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What’s the ‘minimum running time’ of a train on a section of track?
July 17, 2019

The minimum running time of a train between two points (usually two stations) is defined as the time it takes the train to travel between those points at the maximum permissible speed allowed for that train on that section, with allowances for permanent or temporary speed restrictions in effect and gradients along the route. Source -

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What’s the ‘maximum permissible speed’ (MPS) of a train?
July 17, 2019

The maximum permissible speed is the highest speed permitted for a train on a particular section, and is not to be exceeded under any circumstances. A train needs to run at this speed only to make up for lost time. Most of the zonal railways fix the difference between max. perm. speed and booked speed as 10% although NR fixes this as 12-1/2 %.

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