In the morning and evening rush hour traffic lights, many drivers must have had such a tangled moment. The front bus is a bus, which blocks the traffic lights in front of it. I don’t know whether the red light is in front. When you come to the intersection, keep going, afraid of running the red light. Don’t go. The horn of the rear car keeps pressing. < / P > < p > although this situation can be complained sometimes, the wasted time and energy is also a loss to myself. Therefore, following the traffic lights behind the bus has become a “nightmare” for many drivers. However, what makes Changsha drivers happy is that in the future, such things will be less and less in Changsha, and buses will also become “mobile traffic lights”. According to media reports, recently, Changsha smart bus line 315 has its own traffic lights, which are synchronized with the traffic lights at the intersection. Staff said that the bus is large, and the driver’s vision will be blocked, and the traffic light information displayed at the rear of the bus can reduce the occurrence of rear end collision and other accidents. < / P > < p > it is reported that when a bus passes a traffic light intersection, the second reading information of the traffic light at the intersection will be synchronized with the bus, and the display screen at the top of the bus tail will display the traffic light status and second reading information at the intersection. < / P > < p > in this way, drivers can drive more leisurely after seeing the information of straight ahead and left-right turn signal lights displayed on the bus. In addition, it is no longer necessary to rush into the intersection with luck and seize time to pass as before, so as to prevent the occurrence of rear end collision. According to the introduction, more than 2000 buses in Changsha have been transformed. In fact, the function of displaying traffic light information of this kind of bus is relatively safe to use, and it is worth popularizing and applying nationwide. Google said the proposed media negotiation rules would put its free services in Australia at “risk”