以系统的观点分析各种影响通行能力的因素 ,并将其量化 ,从而得出不同几何类型、不同交通条件下无信号交叉口的实际通行能力。交叉口的实际通行能力为基本通行能力与各项因素影响修正系数的连乘积。方法简单便利 ,适合于工程应用。 From a systematic point of view, we analyze various factors that affect capacity and quantify them, so as to draw the actual traffic capacity of different types of roads and no-traffic intersections under different traffic conditions. The actual traffic capacity at the intersection is the product of the basic traffic capacity and the correction factor of each factor. The method is simple and convenient and suitable for engineering application.