When authorized by Form D, what is the speed limit for trains traveling over a broken rail?

When authorized by Form D, the speed limit for trains traveling over a broken rail is designated as 10 mph. This speed limit is established to ensure safety when trains must traverse areas where infrastructure integrity is compromised due to rail breaks. The reduced speed allows for more cautious travel, giving crew members and the train itself extra time to react to any potential hazards or issues that may arise from the weakened track.

The use of Form D serves as an important protocol for communicating specific safety requirements and restrictions, which highlight the necessity of slow speeds in these conditions to minimize risk. This is crucial in rail operations where structural defects pose potential dangers, ensuring that trains can navigate through such areas safely without exacerbating the situation.

Other speed limits for different rail conditions have been established according to industry standards, and 10 mph has been specified as a prudent maximum for broken rails to balance operational needs with safety protocols.