Describe the function of the cab signals.

Cab signals play a crucial role in enhancing the safety and operational efficiency of train movements. They serve to provide information about track conditions and signals directly to the engineer, allowing for immediate awareness of any changes or instructions pertaining to train operations. By transmitting real-time information regarding aspects such as speed restrictions or upcoming stop signals, cab signals enable the engineer to make informed decisions promptly, thereby aiding in maintaining a safe and efficient journey.

This function is essential because it allows the train crew to receive vital information without having to rely solely on external signals, which may be difficult to see or interpret from the locomotive. Having these signals integrated into the cab helps reduce the likelihood of human error and enhances the overall safety of the railway system.