The speed of a train estimated taking into account the stoppage time a...
Average Speed: It is the mean of the speeds attained by the train from start to stop, i.e. it is defined as the ratio of the distance covered by the train between two stops to the total time of run. It is denoted with Va
Average speed = distance between stops/actual time of run
Va = D/T
Where Va is the average speed of train in kmph
D is the distance between stops in km
T is the actual time in hours
Schedule Speed: The ratio of the distance covered between two stops to the total time of the run including the time for stop is known as schedule speed. It is denoted with Vs
Where Ts is the schedule time in hours
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The speed of a train estimated taking into account the stoppage time a...
Explanation:
The speed of a train estimated taking into account the stoppage time at a station in addition to the actual running time between stops is called the Schedule Speed.
1. Average Speed:
Average speed refers to the total distance traveled divided by the total time taken. It does not take into account the stoppage time at stations. It is a measure of the overall speed of the train, including both the running time and the time spent at stations.
2. Schedule Speed:
Schedule speed, on the other hand, considers the stoppage time at stations in addition to the actual running time. It is the speed at which the train is expected to travel according to the predefined schedule. This speed is important for planning and managing the train operations, as it helps in determining the arrival and departure times at each station.
3. Free-Running Speed:
Free-running speed refers to the maximum speed at which a train can travel without any restrictions or limitations. It is the speed at which the train can run under ideal conditions, without considering any external factors such as traffic, signals, or station stoppages.
4. Notching Speed:
Notching speed is a term commonly used in the context of locomotives. It refers to the different levels or notches in the throttle control that determine the power output and speed of the locomotive. It is not directly related to the estimation of speed taking into account stoppage time at stations.
Conclusion:
Among the given options, the speed of a train estimated taking into account the stoppage time at a station in addition to the actual running time between stops is called the Schedule Speed. This speed is important for maintaining the predefined schedule and ensuring efficient train operations.