You must stop
A red light - steady or flashing - means STOP. A steady amber light means Caution - signal about to change. A flashing amber light means SLOW DOWN.
Amber in the traffic signal means caution. Generally, it is best to stop on an amber light.
Amber flashing light.
When approaching an intersection with a flashing yellow signal light, you should proceed with caution and be prepared to yield to oncoming traffic or pedestrians.
No, Flashing your headlight's will have no effect on a traffic signal. The reason a traffic signal changes for emergency vehicles that have the lights flashing, is, they have a special transmitter that tells the light to change. This transmitter is connected to the emergency lights so it comes on when the lights are used.
When approaching an intersection with a flashing yellow signal light, you should proceed with caution and be prepared to yield to oncoming traffic or pedestrians.
Flashing amber light means slow down, watch for potential dangers. Flashing red means stop; proceed if and when it is safe.
In the U.S.A it means you have the right of way but proceed with caution.
A flashing yellow signal light means proceed with caution.
If there are pedestrians still crossing when the amber light is flashing, the motorist must remain stationary. If there are no pedestrians crossing, the motorist can proceed. (But, be careful of pedestrians taking a chance and attempting to cross when the amber light is flashing - it is best to use caution until the light turns green.)
It means you should slow down and be prepared to stop if necessary. "Slow down and cross the intersection carefully."
You must proceed with caution and be prepared to stop if necessary. If it is in a school zone, slow to 20 miles per hour.