环形交叉口优化设计.docVIP

焦东建行环形交叉口优化设计 摘 要 焦作社会经济的的飞速发展导致交通量的迅猛增长，道路通行能力降低，交叉口问题日益突出运行情况来看，车流在一定程度上能够连续行驶，减小了常规交叉口由于停车等待信号灯而引起的延误，节约了交叉口交通管理控制的成本。但仍然存在许多缺陷和问题，表现在高峰时间车辆拥堵较严重；机非混行，非机动车肆意穿越；争抢进入环交，造成一定的交织本文通过路环形交叉口评价，以满足通行能力合理组织车流人流为基本原则，综合考虑经济性和美观性，提出该交叉口的改造方案Along with the rapid development of social economy, the traffic volume is growing expeditiously, while the traffic capacity is dropping on the contrary, the traffic problems in the intersection is becoming increasingly prominent. Considering the operation of roundabout of China Construction Bank in the east of Jiaozuo city designed previously, the traffic stream can move continuously to a certain extent, reduce the delays caused by stopping to wait for the traffic lights in common intersections and save the cost of traffic management. However, there still exists some defects and problems: serious congestion in peak time; mixture of motor and non-motor vehicles, casual crossing of non-motor vehicles; Scramble for entering the roundabout and slight interexture. A rational and suitable renovation project will ultimately put forward by assessment of the roundabout of the China Construction Bank in the east of Jiaozuo based on calculating some index such as traffic volume in each side, traffic capacity, peak hour factor and delay and analyzing the problems and defects, which is combined with the forecast of traffic volume and based on the original shape. The project should obey the principle of fitting the traffic capacity and organizing vehicles and pedestrians reasonably, besides, it should take economy and artistry into consideration. Key words： Roundabout Canaligation Engineering Renovation Assessment 目 录 1 绪论了人类的出行方式扩大了空间但——环形交叉口为切入口，进行优化设计，以小见大，为焦作市整体道路通行能力的提升献言献策。该选题能够从一定程度上降低行车延误，改善焦作市城市道路的通行能力，缓解交通拥堵状况，降低交通事故发生率，提高环形交叉口的服务水平，对于优化焦作的交通环境，提升焦作的城市形象意义重大。 1．2 国内外研究概况 Eugene）在1903年提出了在交叉口车辆旋转运行的概念，它要求所有的车辆都必须围绕同一方向。这种环形系统最早投入实践是1905年由威廉在纽约设置的Columbus Circle。1925-1926年，环形交叉口被引进英国伦敦。第一本有关环形交叉口的工程设计指南是在1929年由英国交通署出版的，并在1957年引