A marshalling yard is typically an off-site location where shipping and deliveries are coordinated and controlled. This location allows the event organizers time and space to control the flow of traffic in an out of the loading docks, organize exhibitors based on arrival times, and keep everything running smoothly. -

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A classification yard (American and Canadian English (Canadian National Railway use)) or marshalling yard (British, Hong Kong, Indian, Australian, and Canadian English (Canadian Pacific Railway use)) is a railway yard found at some freight train stations, used to separate railway cars onto one of several tracks. First the cars are taken to a track, sometimes called a lead or a drill. From there the cars are sent through a series of switches called a ladder onto the classification tracks. Larger yards tend to put the lead on an artificially built hill called a hump to use the force of gravity to propel the cars through the ladder. - https://en.wikipedia.org/wiki/Classification_yard

Shunting occurs whenever train units are temporarily not needed to operate a given timetable - https://tinyurl.com/yypydaeg

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Note added at 4 hrs (2020-08-21 10:41:12 GMT)
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The process of parking train units, together with several related processes, is called shunting. A major complicating issue is the fact that train units are strongly restricted in their movements by the rail- way infrastructure. In addition, time is a restrictive resource for shunting.

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Note added at 4 hrs (2020-08-21 10:43:26 GMT)
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Train units arrive at and depart from the station according to a given train schedule and in between the units may have to be stored at the station.
The assignment of arriving to departing train units (called matching) and the scheduling of the movements to realize this matching is called shunting. The goal is to realize the shunting using a minimal number of shunt movements

- https://tinyurl.com/yync4mf3 - page 2

Polish term or phrase:
stacja techniczno-postojowa
English translation:
technical and holding station
Added to glossary by Polangmar

https://www.proz.com/kudoz/polish-to-english/transport-trans...

https://pl.wikipedia.org/wiki/Stacja_Techniczno-Postojowa_Ka...