范文字数:23924,页数:43 开题报告,任务书, 摘 要 近一个世纪以来环形交叉口自产生之日起,由于其众多优点备受交通工程师们的青睐。然而随着交通需求的不断增长,其缺点也逐渐显露出来。环形交叉口曾一度遭到人们的反对,在交通工程师们的不懈努力下,对传统环形交叉口进行了不断的改进,逐渐克服了传统环形交叉口的缺点,发展了环形交叉口的优点,使得环形交叉口在欧美等各国得到了日益广泛的应用。然而由于种种原因,我国环形交叉口的建设无论是理论还是实践都还不够先进。因此,通过对环行交叉口的交通调查,利用国外的理论,再根据我国的实际国情,提出适合我国城市建设的环行交叉口交通组织优化方案已经是必须要解决的问题了。
ABSTRACT Nearly a century since the Roundabout since a date, because of its many benefits much traffic engineers of all ages. However, with demand continuing to grow, its shortcomings have gradually revealed. Roundabout had once been the people's opposition, traffic engineers in the unremitting efforts of the traditional Roundabout to the continuous improvement and gradually overcome the traditional shortcomings of the Roundabout, the development of the merits of the Roundabout, making Roundabout in Europe and the United States and other countries have been increasingly wide range of applications. However, due to various reasons, China's Roundabout building both theory and practice have also advanced, however. Therefore, if we adopted the Central Bank survey of traffic intersections, the use of foreign theories, and in accordance with China's actual conditions, suitable for China's urban construction by the Central Bank of traffic intersections organizations must optimize the programme is to solve the problem. Keyword: Roundabout; traffic survey; pedestrian traffic; analysis of the status quo; Traffic Organization optimization; traffic lights
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