At a railroad crossing, flashing red lights and lowered crossing gates mean that

Explanation

At a railroad crossing, flashing red lights, lowered crossing gates, or ringing bells mean that you must stop between 15 and 50 feet from the nearest rail. Even after the train has passed, use caution and watch the signals, the gates, and the tracks. There may be a second train after this one. You may proceed to cross the tracks only after the signals have stopped and the gates have been completely raised.