信号灯控制下的交叉路口是城市路网的节点和枢纽,是交通拥堵的高发点。通过对宁波市灯控路口的通行能力的理论计算,得出一种简便的适合交管部门使用的计算方法,以其为基础,提出增加灯控路口通行能力的理论依据和对城市交通拥堵状况进行评估、对路口通行能力进行优化的一些方法。 Traffic lights under the control of the intersection is the urban road network nodes and hubs, is the high point of traffic congestion. Based on the theoretical calculation of the traffic capacity at Ningbo Light Control Intersection, a simple and convenient calculation method suitable for the traffic control department is derived. Based on the calculation method, the theoretical basis for increasing the traffic capacity of the light control junction and the analysis of the traffic congestion in the city Evaluate some of the ways to optimize the capacity of intersections.