What is the maximum distance from a railroad crossing within which you should not pass another vehicle?

The correct answer is that you should not pass another vehicle within 100 feet of a railroad crossing. This regulation is in place to ensure safety in an area where vehicles may need to stop suddenly for oncoming trains. When approaching a railroad crossing, visibility is often limited, and the last thing you want is to be attempting to pass another vehicle when there may be an immediate need to stop for a train.

By maintaining a distance of at least 100 feet, you allow yourself ample time to react to any potential hazards and ensure that you can safely observe any crossings or signals that indicate a train's approach. This distance helps to protect not only your safety but also that of any passengers and other drivers on the road.

Distances greater than 100 feet may be more cautious in specific situations, but the regulation specifically outlines 100 feet as the maximum distance within which passing is prohibited to minimize risk in those crucial moments near a crossing.