Route
Route
The particular section or sections of line.
A (railway) route can be seen on a map and has a physical existence, unlike a (railway) path, which is part of a timetable.
TAF TSI definition: 'The geographical way to be taken from a starting point to a point of destination.'
UIC definition: Consecutive lines and nodes as a whole between a defined source and target.
US definition: A rail route is a line of railroad track between two points on a rail system.