What is the meaning of a stop sign at a highway-rail grade crossing?

• A. Stop and ensure safe crossing clearance before proceeding in accordance with signals and authority.
• B. Slow down and proceed without stopping.
• C. Stop only if you hear a whistle.
• D. Proceed if there is no traffic.

Answer: (A)

A stop sign at a highway-rail grade crossing means you must come to a full stop and then cross only when it’s safe, following any signals or directions from crossing authorities. You stop at the stop line, look and listen for approaching trains on all tracks, and ensure there’s enough space on the far side to clear the crossing. You then proceed only after you have crossing clearance, which may be provided by active signals (flashing lights, gates) or by directions from railroad personnel or other authorized signals.

This isn’t satisfied by simply slowing down and continuing, since a stop sign requires a complete stop. It isn’t enough to stop only if you hear a whistle, because trains can be silent or you might not hear them clearly. And you shouldn’t proceed just because there’s no traffic—an approaching train could be coming, so you must stop and verify it’s safe before crossing.