Solar energy traffic signal lamp manufacturers talk about along with the increasing vehicles, the traffic problem will become increasingly serious. By building more roads or limit the vehicle's ways to solve, but the increase of the road is limited, and limit the vehicle can make car and its related industries suppressed. At present, the developed countries is mainly to develop in the direction of intelligent traffic transportation. The way such as such as fitted on the car navigator, make full use of electronic equipment to improve the transport capacity of existing road traffic system.

Traffic lights is the important tool of urban traffic management, road traffic flow from the study of traffic signal lamp manufacturers in recent years, the influence of a great deal of attention in the majority of scholars. At present most of the traffic lights, the time is set, whether it's peak or trough, traffic lights time are fixed; There are traffic lights can be adjusted according to the simple division of time to time, but have not been very flexible to control, which makes the urban traffic regulation cannot achieve the optimal.

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