Tweet
What is the purpose of the little blue light on top of a stop light?
Answer
laurametz
Some cities put little blue lights on top of stoplights in order to help the police catch drivers running red lights. Since the blue light can be seen from any angle, police know when the light turns red.
Q&A Related to "What is the purpose of the little blue light..."
|
Primary use is designed to assist Law Enforcement observe "Red L.
http://www.chacha.com/question/what-is-the-blue-li...
|
|
The blue lights illuminates when the light turns red to
http://www.chacha.com/question/what-is-the-single-...
|
|
If the blue light is flashing, it's a signal that an emergency
http://www.chacha.com/question/why-is-there-blue-l...
|
|
The blue lights above stop lights are used for emergency
http://www.chacha.com/question/what-are-the-blue-l...
|
People Also Asked
Wikipedia on Ask.com
Traffic lights, also known as traffic signals, traffic lamps, signal lights, robots and semaphores., are signalling devices positioned at or near road intersections, pedestrian crossings and other...
Top Related Searches