When approaching a railroad crossing with no warning devices and limited visibility, the safe speed is:

• A. 25 mph.
• B. 15 mph.
• C. 55 mph.
• D. 5 mph.

Answer: (B)

When you approach a railroad crossing with no warning devices and limited visibility, you must slow down enough to stop safely if a train appears. The reason is you can’t rely on signals or a long view of the tracks, so you need extra time to observe, listen, and stop. A speed of about 15 mph provides that workable margin: fast enough to keep traffic moving but slow enough to react and stop before the tracks if a train is coming.

Going faster would reduce your ability to stop in time once you’re close to the crossing, and going much slower isn’t necessary or practical for this situation. If you can’t see clearly, you should proceed with extreme caution and be prepared to stop before the crossing.