What type of working limits applies to controlled track?

Controlled track working limits involve specific measures to safeguard workers while they are engaged on the track, ensuring that the area is safe from train movements. The two primary types of working limits applicable in this context are foul time and exclusive track occupancy.

Foul time allows workers to be present on the track while trains may be operating, albeit under strict conditions where warnings and signals are coordinated. This involves the track being safe for workers at specified times, with communication to ensure safety.

Exclusive track occupancy, on the other hand, provides a higher level of safety by restricting all train movements on a designated section of track, ensuring that workers can proceed without fear of trains entering the space where they are working.

Both foul time and exclusive track occupancy are fundamental components in controlled track environments, thus addressing the necessity to protect workers during maintenance and other activities conducted on or near the tracks. This is why the correct choice encompasses both types of working limits, as they collectively define the conditions under which work can safely occur on controlled track.