hump
Quick Summary
A "hump" in rail traffic control refers to a raised track in a marshaling yard. Freight cars are pushed over this hump and then roll down a grade, using gravity to sort them. This process, known as "humping," allows cars to be directed over switching points to their designated berths for forming trains.1
Modern humping yards often employ automatic systems. Sensors detect the speed and weight of each car to estimate its rolling resistance. Once a car's destination is identified, automatic switches guide it along a predetermined path. Computers calculate the necessary speed for the car to reach the end of its assigned train, with automatic braking devices or boosters adjusting its speed as needed. This technology helps reduce delays in sorting freight cars.1
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railroadThe marshaling yard…then roll down from the hump by gravity, and each is routed into a classification or “bowl” track corresponding to its destination or where the train for the next stage of its transit is being formed.
Read More…then roll down from the hump by gravity, and each is routed into a classification or “bowl” track corresponding to its destination or where the train for the next stage of its transit is being formed.
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traffic controlConventional control techniques…raised track, known as a hump, so that the car travels freely down a grade and over switching points to its correct berth. Automatic humping includes sensors to detect car speed and weight, from which car rolling resistance is estimated. Once the uncoupled car has been allocated a train and…
Read More…raised track, known as a hump, so that the car travels freely down a grade and over switching points to its correct berth. Automatic humping includes sensors to detect car speed and weight, from which car rolling resistance is estimated. Once the uncoupled car has been allocated a train and…
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