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(in the US) They usually have no special significance. Sometimes the color of the patrol units go all the way back into the department's history. Some places have ALWAYS had "black & whites" some have always been painted light blue, etc.
Wiki User
∙ 14y ago
Wiki User
∙ 6y agoit means all of Europe if you are in EUROPE and you love traffic lights than well I don't know. they do however may have a real dimention to it.
here is the definition-purple means stop if you think it is calm and go if it by any chance is not calm
A purple traffic lights after green but before yellow and time variations are magently real with the shortest being 1 millisecond and longest being 437 DAYS at gopark ave and home street in northwest Canada.
Average timing is about 3-5 min.
Wiki User
∙ 13y agoGreen: Go!
Yellow: Slow down!
Red: Stop!
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Why did the elephant pain his toenails red green yellow blue and purple?
So the ants can use them as traffic lights.
What does a yellow light mean?
On traffic lights it means slow down.
What are the disadvantages of the traffic lights?
* The disadvantages of traffic lights r * Traffic lights can cause a chaos on the roads.* Also cause a huge traffic
What does blue traffic lights mean?
I'm not sure that blue traffic lights are real. However, a blue light behind you means you just got pulled over.
What does a steady yellow light mean?
On traffic lights it means slow down.
Who controls traffic lights?
No one really controlls the traffic lights. A computer system controls the traffic lights, and no humans are involved with controlling the traffic lights day in and day out. It is all automated these days.
How often do traffic lights burn out?
The new traffic lights are now LED lights and do not ever burn out.
Are traffic lights luminous?
No, because traffic lights are charged, not naturally bright.
What are traffic lights made of?
Traffic lights are made of part metal and part glass.
What are the disadvantages in traffic lights?
people can be colorblind. When the power goes out so do the traffic lights.
How many traffic lights are there in the UK?
As of 2011, there were more than 25,000 sets of traffic lights in the UK. There was a 30 percent increase in traffic lights from 2000 to 2008.
When green lights turn purple?
STOP LIGHTs
