城市道路交叉口选型及优化设计

随着城市人口的持续增长，交通问题日益凸显。在城市道路中，交叉口作为车流及人流汇合、转向、分离的关键节点，对于城市交通系统来说是十分重要的。通过对城市道路交叉口形式及其特点进行分析，并对城市道路交叉口设计流程及其评价方法进行研究，并结合某交叉口优化工程，进行交通现状的调查和交通量的预测，提出了相应的交叉口优化方案。另外，通过道路交叉口评价方法对上述优化方案进行了比选，为实际工程提供了参考。

Selection and Optimal Design of Urban Road Intersections

With the continuous growth of urban population, the traffic problems have become increasingly prominent. In urban roads, the intersections are very important to the urban traffic system as a key node for the convergence, turning and separation of traffic and pedestrian flows. The forms and characteristics of urban road intersections are analyzed, and the design process and evaluation methods of urban road intersections are studied. Combined with an intersection optimization project, the investigation of traffic situation and the prediction of traffic flow are carried out. The relevant optimization scheme of intersection is proposed. In addition, the above-mentioned optimization schemes are compared and selected through the evaluation method of road intersection, which provides a reference for the practical projects.