A single track is a line with only one set of rails for both directions. A single track branch.
Only one train can be in a section at a time, which is enforced by a token handed between drivers. A single track line is cheap to build and impossible to run frequently.
1nounsingle trackA line with only one set of rails for both directions.
“The whole branch is single track and has been since 1863.”
single track is a line.
singletrack comes from single + track.
Etymology from Wiktionary, CC BY-SA
Practised in Railways