What must a train do after stopping at a red flag or red light?

Moving at restricted speed until a specified distance is cleared is a crucial safety procedure following a stop at a red flag or red light. This protocol ensures that the train operator is fully aware of the surrounding conditions and potential hazards before proceeding. By traveling at restricted speed, the conductor can stop the train within half the distance of any observed obstruction, which is essential for maintaining safety on the track.

This approach allows the crew to respond quickly to any unforeseen circumstances that may arise, such as another train on the track or equipment failure. The specified distance usually refers to a defined area where the track may be obstructed or where the train must proceed cautiously. Adhering to this practice significantly reduces the risk of accidents and enhances overall operational safety.