This sign means you are approaching a railroad crossing that does not have a signal. You should:

Question

At a railroad crossing marked with this sign, a driver should look both ways, listen for any trains, and be prepared to stop if any trains are nearby. Never try to outdrive an oncoming train.

Accepted Answer

Slow down, look both ways, listen for any trains, and be prepared to stop if any trains are nearby.

Answer

Come to a complete stop.

Answer

Proceed at a consistent speed while looking and listening for approaching trains.