Is it permissible to extend "track and time"?

The correct understanding here is that "track and time" can indeed be extended, allowing for operational flexibility on the railroad. Extensions are generally allowed, reflecting the need for adaptiveness in train operations. Specifically, the rules may stipulate that such permissions can be extended up to two additional times, providing a structured approach to managing time and track resource utilization.

This means that while "track and time" is not meant to be an indefinite permission, the process acknowledges the necessity of extending these permissions, hence allowing the dispatcher to accommodate ongoing operations while ensuring safety and efficiency. Such a procedure supports effective communication and coordination among the train crew, dispatchers, and other personnel involved in train operations.