What are interlocking limits?

Interlocking limits refer specifically to the area that lies between two opposing signals of an interlocking. This is a critical concept in railroad operations, as interlockings are designed to control the movement of trains at junctions and crossings to prevent collisions. The opposing signals mark the boundaries of this area where specific rules and procedures apply to ensure safe train movements.

Understanding interlocking limits is essential for train crews because it alerts them to the presence of signals that dictate how and when they can proceed through that section of track. The overall safety and efficiency of railroad operations depend on the correct interpretation and enforcement of these limits, ensuring that trains do not enter conflicting routes that could lead to accidents.

The other options do not accurately describe interlocking limits. The tracks leading to a garage for equipment maintenance do not pertain to interlocking operations. Tracks reserved for emergencies, while important for safety, are not directly related to the definition of interlocking limits. Lastly, sections of track not monitored by signal systems indicate an area lacking the control mechanisms that interlocking limits entail, which is contrary to the function of an interlocking system that deals specifically with signal and route control.