What do the flashing red lights at a railroad crossing indicate?

The flashing red lights at a railroad crossing clearly indicate that a driver must come to a complete stop until the lights stop flashing. This signal is an essential safety measure designed to protect drivers and passengers from the potential danger of an oncoming train. The flashing red lights serve as a warning, signaling that a train is either approaching or currently occupying the crossing, thus emphasizing the importance of halting all vehicle movement to prevent accidents.

When approaching a railroad crossing, ignoring the flashing lights by attempting to speed up, continue if no train is visible, or merely slow down can lead to dangerous situations, as trains often travel faster than anticipated and may not be visible until they are very close. Therefore, the requirement to stop ensures that all motorists have the opportunity to check for trains and safely navigate the crossing. This regulation enhances both individual safety and public safety at rail crossings.