Flashing red lights typically indicate that you must stop, but there may be exceptions depending on the specific situation and traffic laws.
Stop until the red lights stops flashing
Stop
You must stop at a railroad crossing with lights and gates when the lights are flashing and the gates are lowering or have already lowered. Additionally, you should stop if you hear a train horn or see a train approaching, even if the lights are not yet activated. Always ensure that you wait until the lights stop flashing and the gates are fully raised before proceeding. Never attempt to cross while the gates are down or the lights are flashing.
Vehicles approaching a school bus with its yellow lights flashing must stop.
You must obey the police officer over the other three. While red lights and stop signs indicate traffic rules that must be followed, a police officer directing traffic has the authority to override those signals for safety and order. Always prioritize the officer's instructions in such situations.
STOP!!
A passive crossing is marked by signs, pavement markings, and sometimes flashing lights or gates to indicate the presence of a railroad crossing. Drivers must stop and yield to oncoming trains.
turn on flashing lights
Turn on flashing lights (caution)
If you meet from behind, stop far enough to allow children to cross the street in front of you and behind the bus. If you are meeting from the front of the bus, the same applies- stop far enough to allow children to pass in front of you and in front of the bus. YOU MUST NEVER pass a bus that is stopped, with their red stop sign out, and/or has their red lights flashing. These signs indicate imminent roadway crossing of children who may be unaware of your presence in the roadway. YOU MUST wait until the sign is retracted, the red lights stop flashing, and the bus proceeds on its way. ONLY THEN may you proceed on your way.
Flashing red lights may be permanent or temporary (e.g. when the programmed sequence fails).A flashing red light means STOP, then proceed when safe.If it is a 4-way flashing red, cross traffic will also stop, and the intersection becomes identical to one with stop signs. This is a safety feature in some programmed signals. If only one direction has the flashing red (such as a road that intersects a busy highway), the traffic entering the highway must stop, and never has the right-of-way.* Some international traffic signals use a flashing red in place of steady red, to attract the attention of drivers where there is a profusion of commercial lights.
Stay 500 feet behind it if it's lights are flashing (in the U.S.)