交通畢業(yè)設(shè)計(jì)外文及翻譯-交通線路-閱讀頁
2025-02-08 00:17本頁面
【正文】 trol into one by the few line of control the grading of centralized control system, at this moment, you may think that makes the control is the surface control a unit。 The federal Germany on the road traffic accident about thirtysix percent to the hair in the intersection, city in the traffic accident happened about sixty percent to eighty percent in the intersection and its nearby. Therefore, the intersection traffic accident was not aroused people39。t consider the intersection of the upstream and downstream the influence of the intersection. The urban road traffic signal control is the study of the regional coordination in a city way way zone, to each road intersections of signal period of how long, how intersection green than and between the letter at phase difference is optimized, to minimize the intersection delay parking, improve the urban road work capacity traffic signal control method coordination area. Along with the urban road area signal coordination control the development of the theory, the researchers found that, can be to a larger city road traffic area work as a great whole, the traffic signal coordination control and optimization, as a result of road work and the plexity of the flow of motor vehicles, but for the optimization results to the travel of the ability is not very ideal. Therefore, since the 1970 s, many researchers began to try to be huge, plex tedious road work according to certain principles and methods model division, divided into several signal control branch area, and then again to signal control subdomain coordinate signal control, to improve the way of city road work coordination control effect. At present, the urban road traffic congestion problem has been bee the attention and to the world. City road and intersection traffic as a city of basic services, mainly including road intersection and sections, the service performance in good operating directly affect the normal operation of city traffic. City road crossing the road system is an important ponent of the urban road through the intersection nodes to the various factors of city road connect each other of road work, to coordinate each intersection on the direction of imported cars n
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