They're an additional feature to focus your attention towards the traffic light. The human eye is quicker to catch a flashing light than a steady light.
Nothing. there is no blue light.
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.
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.
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.
You must stop
On traffic lights it means slow down.