The term level crossing (also called a railroad crossing, road through railroad, railway crossing, train crossing or grade crossing) is a crossing on one level ("at-grade intersection") — without recourse to a bridge or tunnel — of a railway line by a road, path, or another railroad. It also applies when a light rail line with separate right-of-way (or a reserved track tramway) crosses a road.
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(See also At Grade, Highway-Rail Crossing, Rail-Highway Grade Crossing) An intersection of highway roads, railroad tracks, or dedicated transit rail tracks that run either parallel or across mixed traffic situations with motor vehicles, light rail, commuter rail, heavy rail, trolleybus or pedestrian traffic. Collisions at grade crossings involving transit vehicles apply only to light rail, commuter rail, heavy rail or trolleybus. (FTA1)
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