Traffic lights traffic signals an important part of the basic language of road traffic. Traffic lights from red (to indicate that traffic), green (indicating allows passage), yellow (for warning) components. Divided into: motor vehicle lights, non-motor vehicle lights, crosswalk lights, lane lights, directional lights, flashing warning lights, road and railway level crossing lights. September 29, 1994, Beijing Third Ring farewell traffic lights. From January 1, 2013, known as the history of the most stringent traffic rules revision "motor vehicle driver's license to apply for and use" and "motor vehicle registration requirements," the official implementation, which Chuang yellow 6 points deduction rules lead great attention from the media and the public. However, many provinces and cities have not to "grab yellow light" punishment. Road traffic lights traffic safety products in a category, in order to enhance road traffic management, reduce traffic accidents and improve the efficiency of road use, an important tool to improve the traffic situation. Applicable to the cross, and other T intersection, the road traffic signal control machine control, direct traffic and pedestrian safety and orderly traffic. Kind of traffic lights are: motor vehicle road lights, pedestrian crossing lights, non-motor vehicle road lights, directional lights, mobile traffic lights, solar flashing warning lights, ceiling lights toll traffic signal traffic lights are an important part of the command is. The basic language of road traffic. Traffic lights from red (to indicate that traffic), green (indicating allows passage), yellow (for warning) components. Divided into: motor vehicle lights, non-motor vehicle lights, crosswalk lights, lane lights, directional lights, flashing warning lights, road and railway level crossing lights. Widely used in highway intersections, corners, bridges, etc. there are security risks of dangerous sections, directing the driver or pedestrian traffic, promote traffic flow, to avoid traffic accidents and accidents.