Definition from Wiktionary, the free dictionary
trackside (not comparable)
- Located to the side of a track, especially a racetrack or set of railroad tracks.
2007 May 5, William Neuman, “Looking Back at 6 Decades of Subway Worker Deaths”, New York Times:
- Many workers were killed as they squeezed into a trackside niche or the narrow space between tracks to get out of the way of an oncoming train […] .