Single track (rail)
A single track railway is one where traffic in both directions shares the same track. In the early days of railways, especially before the telegraph, operation of significant numbers of trains on a single track railway was fraught with difficulties, including delays and accidents, particularly head-on collisions.
Single Track (rail) Media
A Class 158 DMU on the Kyle of Lochalsh Line, a primarily single-track railway in Scotland
A train on the Long Island Rail Road's single-tracked Central Branch
A train on the Jinhua–Wenzhou Railway, a single-track railway in Southern Zhejiang Province, China
Single track on the Stony Point Line in the Australian state of Victoria
Kirkby railway station single-track railway interchange (former double-track railway)