What should a train with en-route cab signal failure do in 562 territory?

When a train experiences an en-route cab signal failure while operating in 562 territory, the appropriate action is to operate at Restricted Speed. Restricted Speed is a lower speed limit that allows for greater caution and safety measures to be taken, particularly in scenarios where there might be undisclosed dangers on the track, such as obstructions or other trains.

In this type of territory, the goal is to reduce the risk associated with the failure of the cab signals, which are critical for ensuring safe operations by providing real-time information about track conditions and upcoming signals. By adhering to Restricted Speed, the crew can maintain control of the train, provide a greater reaction time to unexpected occurrences, and ensure that they can stop within half the range of vision.

Other responses would not be appropriate because they either ignore the need for caution following a signal failure or do not comply with safety protocols established for the operation of trains in such scenarios.