running track
noun2
Rail transport, Railways, Transport A line on which trains can run, as opposed to a siding.
- There is a broad-gauge transfer shed, lengths of running track with reconstructed stations, and a bit of Brunel's ill-fated atmospheric railway.2021 December 29, Stephen Roberts, “Stories and facts behind railway plaques: Didcot (1932)”, in RAIL, number 947, page 61: