Nothing. there is no blue light.
If the traffic light is not powered, you are to treat it as a all-way stop sign. I'm assuming that's what you mean by that. If the traffic light is broken, likely there will be utility workers out there working to fix it and you follow their instructions if any.
A yellow arrow traffic light means that you should yield in the direction you are going. These are often in place when you are turning left.
your not so bright
In the U.S.A it means you have the right of way but proceed with caution.
Don't look; I'm changing
I'm not sure that blue traffic lights are real. However, a blue light behind you means you just got pulled over.
To help people with colorblindness the "green" light has a mixture of green and blue. I think they the new lights have more blue than the older ones.
semáforo: traffic light
If the traffic light is not powered, you are to treat it as a all-way stop sign. I'm assuming that's what you mean by that. If the traffic light is broken, likely there will be utility workers out there working to fix it and you follow their instructions if any.
Light blue
They are "Confirmation Lights" which are the WHITE or BLUE light located directly above a Traffic Signal and are utilised by the Police to detect "Red Light Runners".It is "lit" when the lights are on Red.This allows the Police to see if anyone has run the red light.
Blue what ? ! ? Do you mean an object that appears blue in white light ? Such an object appears black in green light.
Proceed with caution.. ~Bemnestle
Proceed with caution.. ~Bemnestle
It means to stop
The yellow light on a traffic signal means that the light is about to turn red. It serves as a warning for drivers to slow down and prepare to stop.
A yellow light on a traffic signal means to slow down and prepare to stop before the light turns red. It serves as a warning that the light is about to change.