论文部分内容阅读
为了充分发挥城市外环路对不同车流对象的服务功能,解决两互通式立交之间因间距不够引起的各种交通问题,建立了两独立互通式立交之间的最小净距模型。分析了驾驶人对道路交通信息的发现、识别、分析、判断等心理、生理反应过程,建立了驾驶人车道变换模型,根据调查资料得出运行速度与驾驶人变道转角之间的回归关系,分析了驾驶人在寻找可接受间隙期间行驶的距离,得出了两互通式立交净距的关系模型,并结合深圳外环高速公路进行了实例分析。研究结果表明:距离较近的两互通立交之间宜适当减少非必要道路交通标志的设置;双向6车道设计速度分别为100km/h和80km/h时,互通立交之间的净距不宜小于1 410m和880m;大型车比例较高或交通组织混合严重的互通式立交最小净距宜适当增加180~200m。
In order to give full play to the service function of the urban outer ring to different traffic flow objects and to solve the various traffic problems caused by the insufficient distance between the two interchanges, a minimum spacing model between the two independent interchanges is established. The psychological and physiological responses of the driver to the road traffic information were analyzed. The driver lane change model was established. Based on the survey data, the regression relationship between the running speed and the lane departure angle of the driver was obtained. This paper analyzes the distance that the driver travels while searching for the acceptable clearance, and obtains the relationship model of the two-way interchange clearance, and carries out an example analysis with the Shenzhen Outer Ring Expressway. The results show that the setting of unnecessary road traffic signs should be properly reduced between the two interchanges. When the bidirectional six-lane design speed is 100km / h and 80km / h respectively, the clearance between interchanges should not be less than 1 410m and 880m; the minimum clearance of interchanges with high proportion of large-scale vehicles or serious traffic organization should be appropriately increased by 180 ~ 200m.