【正文】 。 at the same time can save manpower and material resources, petence and plex collection of traffic information and many other human can not be pleted. In the late 1970s to the early 1990s, urban traffic control center is set up traffic control signal 哈爾濱工業(yè)大學(xué) 華德應(yīng)用技術(shù)學(xué)院 畢業(yè)設(shè)計(jì)（論文） 23 systems and television traffic control system, w hose main function is to carry out traffic lights junction, bine the control of road traffic conditions in real time Surveillance, supported by human intervention. From the beginning of the end of the 1990s, China39。s major cities to ease urban traffic jams have been taken to new technology and to raise the level of scientific management, such as from a control point, to the regionbywire control, until now the Intelligent Transportation Systems, the electronics, sound Like the puter, such as GPS and hightech onesoluble, so that more and more traffic to the wisdom of the management system on the road. Intelligent tr affic system at the junction of the (above) no traffic management, and be able to rely on the automatic adjustment phase of the signal system to direct traffic in an orderly manner and at the same time the use of radio, video, information boards, and other technical means to the region at road junctions (above) the traffic situation At any time inform the driver, so that it can choose in advance the smooth flow of traffic on the road to traffic, urban road work can be more balanced and full use of. Intel ligent Transportation System will considerably enhance the city39。s living standards rising, more and more ordinary people into the car of the family, together with the Government to develop public transport, taxis, more and more vehicles. This requires not only the road to more and more broad and requires a new model of the introduction of traffic management. The old traffic control system and the shortings of the growing demands of the intensification of contradictions, so that was not very prominent problem of traffic was put on the agenda. Now more and more attention to the departments concerned in the management of traffic in the introduction of au tomation, intelligent technology, such as electronic police, adaptiv e traffic lights and expensive traffic mand and control systems. Traffic control capacity, it reflects from one aspect of this country for society as a w hole 哈爾濱工業(yè)大學(xué) 華德應(yīng)用技術(shù)學(xué)院 畢業(yè)設(shè)計(jì)（論文） 22 management control, so all countries have attached great importance to use a variety of hightech means to enhance traffic control capacity. Since the reform and opening up, China39。s urbanization development, a growing number of emerging cities, making urban transport has bee a major problem. At the same time as China39。s only realizing intellectualized administration of crossroads traffic light , use operation in controlling the vehicular traffic regularity. With the worldwide urbanization and motorization speed up the process, city traffic has increasingly bee a global problem. Urban transport infrastructure lags behind the supply of mobile highspeed grow th of demand, the increasing road congestion, frequent accidents, enviro n mental pollution, such as increased prevalence of the problem. Especially in some developing 哈爾濱工業(yè)大學(xué) 華德應(yīng)用技術(shù)學(xué)院 畢業(yè)設(shè)計(jì)（論文） 21 countries, not only in urban planning, urban transportation development model operator and the mechanism of choice in areas such as urban transport development in the developed countries to draw experience and lessons, and repeated them in the devel opment of highspeed mobile mitted over the Many mis takes, both large and mediumsized cities or emerging small and mediumsized cities, almost no forwardlooking to solve urban traffic problems. Since the reform and opening up, China39。s brought it39。 The motor vehicle breaking rules and regulations to the crossing is able to take a photo immediately , abstracts and the vehicle shop sign. Within world range, one uses the microelectronics technology , the puter and the tec hnology municating by letter are a guide39。 Every crossing has the fixed duty period , charges centre for being able to change it39。 哈爾濱工業(yè)大學(xué) 華德應(yīng)用技術(shù)學(xué)院 畢業(yè)設(shè)計(jì)（論文） 20 附錄 2 英文參考資料 The times is a automation times nowadays , traffic light waits for much the industry equipment to go hand in hand with the puter under the control of. Therefore, a good traffic light controls syste m , will give road aspect such as being crow ded , controlling against rules to give a technical improvement. With the fact that the largescale integrated circuit and the puter art promptness develop, as well as artificial intelligence broad in the field of control technique applies, intellige nce equipment has had very big development , the main current being that modern science and technology develops direction. The main body of a book is designed having introduced a intelligence traffic light systematically. The function being intelligence traffic light navar39。路口信號(hào)控制器是控制交叉路口交通信號(hào)的設(shè)備，它是交通信號(hào)控制的重要組成部分。城市交通控制系統(tǒng)是現(xiàn)代城市智能交通系統(tǒng)的組成之一，主要用于城市道路交通的控制與管理。七十年代末到九十年代初，城市交通監(jiān)控中心主要是建立交通信號(hào)控制系統(tǒng)和交通電視監(jiān)控系統(tǒng)，其主要功能是對(duì)路口信號(hào)燈進(jìn)行點(diǎn)、面相結(jié)合的控制，對(duì)路面的交通狀況進(jìn)行實(shí)時(shí)的監(jiān)視，并輔之以人工干預(yù)。智能交通系統(tǒng)實(shí)現(xiàn)了路口(段 )交通無(wú)人管理，依靠能自動(dòng)