What should a train crew do if they encounter a signal they do not understand?

When a train crew encounters a signal they do not understand, seeking clarification from the dispatcher is essential for maintaining safety and ensuring proper operations on the railway. The dispatcher has the authority and knowledge necessary to provide accurate information regarding the signal's meaning and what actions the train crew should take next.

This approach emphasizes communication and situational awareness, allowing the crew to confirm the signal's purpose or to receive alternative instructions if necessary. Operating without understanding a signal could lead to serious safety risks, including accidents or derailments. Therefore, consulting the dispatcher helps ensure that the crew acts according to established protocols and guidelines, thereby maintaining operational safety and efficiency.