As the speed of urbanization accelerating, motor vehicle is becoming more and more widely, we enjoy infinite convenience brought by the motor vehicle, is faced with traffic congestion. Way of dealing with the traffic jam directly is to build more progress in luqiao ability of urban road network traffic. However, to build a bridge for the billions of dollars and severity of urban space, make the usefulness of this method. Progress, therefore, on the basis of the existing road, traffic control and processing level, reasonable use of the existing traffic facilities, give full play to their talents, one is a useful method for dealing with traffic question. Since the last century, all countries in the world began a discussion of urban traffic control system.

 

From 1868 London ChuDu using gas color light signal, the urban traffic signal from manual to automatic, traffic signal by a fixed cycle to cycle, variable system control method by point to wire control and control, from no vehicle detector to a vehicle detector, resume for nearly a century. To Toronto, Canada, in 1963 set up a computer model using IBM650 rendezvous harmonious induction control signal system and then marks the city road traffic signal system development has entered a new stage. In the future, the United States, Britain, the former federal republic of Germany, Japan, Australia and other countries have built based in computer area traffic control system, this system also equipped with traffic monitoring system in traffic control base.

 

Since the reform and opening up, China's national economy has made great development, urban construction changes with each passing day, urban road traffic conditions continue to improve. Along with the rising ownership of vehicles, some cities and increased more than ten times the number of motor vehicles, construction of the urban road far couldn't keep up with the increase of urban motor vehicle, urban traffic to be more and more serious, to the society, economy and environment has brought a series of adverse effects, such as waste of time and power, air and noise pollution, the increase of traffic accidents, etc., so deal with urban traffic question is now in the fire.

 

The development of modern science and technology provides a new method for dealing with urban traffic problem. Practice has proved that under the condition of the existing urban road, using computer technology, communication technology and control technology to contact processing technology to establish the modern city city traffic signal control system is a kind of capital contribution of the provinces, effective method of dealing with urban transportation question.

 

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