How long must a crew member wait after a stop if a signal does not provide a proceed indication?

When a crew member encounters a signal that does not indicate a proceed condition, they must take appropriate safety measures before proceeding. The requirement to wait typically depends on the specific conditions at the time, which can influence the appropriate waiting time. In this case, if the signal is indicating a stop, the crew member should wait 5 minutes if conditions are normal, or up to 10 minutes if the situation warrants additional caution, such as adverse weather or other operational factors.

This flexible approach encourages situational awareness and ensures that the crew is taking all potential factors into account before deciding how to proceed after a signal that prohibits movement. The rationale is to minimize risks and ensure that the line ahead is clear, as well as to comply with safety protocols relevant to railway operations.