block section

Definitions

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

Equivalents

Examples

“"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⟳.”

CEFR level