Amber in the traffic signal means caution. Generally, it is best to stop on an amber light.
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.
A signal light that is not working.
Amber (or red) in a traffic light sequence means "stop," put the brakes on! Green means "go;" and yellow signifies that the traffic light is about to turn red (or amber), so you should start to slow down and prepare to stop.
Amber
Orange or Amber
Stop light is another name for a traffic signal.
The red light on a vertical traffic signal is usually at the top, followed by the yellow or amber light in the middle, and the green light at the bottom. These lights communicate different signals to drivers to indicate when to stop, prepare to stop, or go.
Amber, as in: Red - stop Green - go Amber - caution
In the United States, the middle light on a traffic light is "Yellow" or "Amber," depending on the regional colloquialism.
Amber