In what scenarios must a conductor perform a roll call?

A conductor must perform a roll call during crew changes or prior to departure to ensure that all crew members are present and accounted for. This procedure is critical for safety and operational efficiency, as it allows the conductor to confirm that the necessary personnel are on board and ready to perform their assigned duties.

This practice helps ensure that all crew members are aware of their responsibilities and any important information regarding the train or its journey, contributing to a smooth and safe operation. By conducting a roll call at these specific times, the conductor can address any issues immediately, such as missing crew members or the need for replacements, thereby maintaining safety standards.

In other situations, such as when a train has completed its journey, it is more focused on assessing the completion of tasks rather than confirming presence. Similarly, conducting a roll call every hour may be impractical and unnecessary, as it could disrupt operations without providing significant safety value. Moreover, while emergencies require quick responses, roll calls are not typically performed solely in those contexts, as proactive checks usually are favored for overall crew accountability.