What kind of signals should a watchman provide when a train is approaching?

Providing visual and audible signals is essential for ensuring safety when a train is approaching. The watchman plays a critical role in alerting others in the vicinity of the oncoming train, and using both types of signals enhances the effectiveness of the warning.

Visual signals, such as waving flags or using lights, can be seen from a distance, allowing those near the tracks to recognize the danger quickly. Audible signals, such as whistles or shouts, add an auditory element that can reach individuals who might not be looking in the direction of the train, such as those who are engaged in other activities or wearing headphones.

Combining both visual and audible signals allows for greater redundancy in communication, ensuring that the message of an approaching train is conveyed to everyone nearby, regardless of their situation. This multi-faceted approach to signaling is crucial for the safety of both rail personnel and bystanders.