block section — English Dictionary

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block section

Noun

In railway signalling, a section of track on which, in normal circumstances, only one train is allowed at one time.

Examples

More examples (1)

"Permissive" working allows more than one train to be in a block section at one time but trains must be run at low speed in order to stop on sight behind the train in front. Such working is often authorised to allow freight trains to "bunch" together to await a path through a bottleneck instead of being strung out over several block sections, as would be necessary if absolute working were in force.

Word forms

block sections

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