More or less over the country at present there are using the wrong traffic signal lamps, damage to the seriousness of the traffic signal. Light of non-standard, the use of composite light. The road traffic lights ( GB14887- 2003). Regulation, motor vehicle lights in each group by red, yellow
at present, more or less everywhere errors in traffic lights, which damaged the seriousness of the traffic signal. Composition of lights, with composite lamp. The road traffic lights ( GB14887- 2003). Regulation, each group of motor vehicle lamp consists of three geometric position in red, yellow and green discrete units. In the same direction, red, yellow, and green direction indicator should be three discrete element with geometry. The law of the People's Republic of China on road traffic safety regulations on the implementation of article 38 of this law, non-motor vehicles and pedestrians shall in the absence of light emitting diode non-motorized traffic lights and light-emitting diodes of pedestrian crossing traffic light intersection traffic. However, in the use of composite under the condition of traffic lights, special slow traffic participants, such as color blindness and color blindness, not through the geometric position to identify the color of the light to determine whether they can pass. Once the misjudgment, accidents occur easily. Light shape is not correct. 'Law of road traffic safety' stipulated in article 25, the unified road traffic signals in the country. Set of traffic lights, traffic signs and traffic line markings shall be in conformity with the road traffic safety clear and the requirements of national standard, and maintain a clear, eye-catching, accurate and in good condition. The road traffic lights ( GB14887- 2003). Specify the shape of the light, the light is round, but there are still a square, rectangular and other special vehicle lights, hand shape, rectangular shaped the pedestrian lights. In is not in conformity with the national standards and rules of law cases, the light does not have the force of law should have. In the event of accident, it is difficult to determine the legal responsibility, brings to the traffic police law enforcement work. At the same time, special-shaped light against foreign normal identification and judgment of the traffic participants, increased operating burden, even influence the transport efficiency. Light is not set as required. The road traffic lights set up and installation specification ( GB14886 - 2006). Specify the installation condition of our country's road intersection and road lights. Some cities, however, there is still no set according to the circumstance led traffic light. First, to set up traffic conditions of intersections and sections is not set the traffic lights. A large number of enterprises in traffic flow disorder of light, will cause intersection and road traffic conflict, cause traffic jams or even accidents. Second, traffic lights set in setting conditions do not conform to the traffic light intersections and sections. Due to less traffic flow, intersection and road of excess leads to lower efficiency of traffic safety, red light driving behavior to increase at the same time, bring the traffic safety hidden trouble. As shown in figure 5, set conditions has been achieved, but there is no set the traffic lights, low level of confusion and lead to intersection traffic safety.