Foul a track
A track is fouled when an individual or equipment is in the gauge of the track or within 4 feet of the nearest rail of the track and can be struck by a moving train or on-track equipment.
Gauge
The gauge of a track is the area between the two rails of the track.
Roadway Worker
A roadway worker is a railroad employee or contractor whose duties include inspection, construction, maintenance, or repair of railroad tracks, signal and communication systems, or roadway maintenance machines.
Exclusive track occupancy
Exclusive track occupancy is a method of establishing working limits on controlled tracks.
Working limits
Working limits are a segment of track with definite boundaries upon which trains may move only as authorized by the roadway worker having control over that defined segment of track.
Controlled track
Controlled track is a track upon which the movement of trains must be authorized by a train dispatcher or control operator.
Adjacent controlled track
Adjacent controlled track is a controlled track whose track center is spaced 19 feet or less form the track center of the occupied track.