traffic lights are signalling devices positioned at road intersections, pedestrian crossings and other locations to control flows of traffic. Traffic lights have been installed in most cities around the world. Traffic light also known as stoplights, traffic lamps, traffic signals, stop-and-go lights, robots and semaphore. traffic light use light in standard colors (red - amber/yellow - green) which is also in a code whose color blind still can understand the meaning of the lights, and each country has different style of the traffic light. The different of the traffic light makes it unique from other country to another.
file of the video you can see it in :
1. youtube funny traffic light
2. youtube traffic count down to green indicator
On Kamis, 07 Juli 2011
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