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
Vehicles approaching a school bus with its yellow lights flashing must 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.
STOP!!
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.)
turn on flashing lights (caution)
Displacement must always indicate the change in position or location of an object or particle in a specified direction. It is a vector quantity that measures the distance and direction between an object's starting position and its ending position.