本文介绍了信号灯控制的交叉口设计理论和方法。对交叉口的设计内容与步骤、交叉口的平面布置以及饱和交通流量、损失时间、有效绿灯时间和通过能力等问题进行了论述和探讨。如果这些问题能按本文所提出的方法去处理,则将有助于改进信号灯交叉口的设计工作。 This article describes the signal-controlled intersection design theory and method. The content and steps of the intersection, the layout of the intersection and the problems of saturated traffic flow, loss time, effective green time and capacity are discussed and discussed. If these issues can be addressed in the approach proposed in this article, it will help to improve the design of the intersection of beacons.