Which term describes a segment of track with definite boundaries upon which trains may move only as authorized by the roadway worker in charge of that segment?

• A. Inaccessible Track
• B. Foul Time
• C. Working Limits
• D. ACSES

Answer: (C)

Working limits describe a defined segment of track with clear boundaries where trains may move only as authorized by the roadway worker in charge of that segment. This protected area is set up so crew members can work safely while train traffic is coordinated and kept away from the active work site. The roadway worker in charge controls who may enter or move within these limits and can apply the necessary protections, such as stopping trains or using flag protection, to ensure worker safety. Other terms don’t fit as well: an inaccessible track isn’t the standard label for a protected boundary; foul time refers to the period a track is fouled and under protection, not the boundary itself; ACSES is a signaling system, not the boundary that defines a work area.