本文调查分析了计重收费下货车收费时间,指出计重收费导致货车的平均收费时间和方差明显增大。根据收费时间的正态分布特征,利用M/G/K排队模型建立了计重收费下收费站通行能力计算方法,并以某高速公路收费站为例进行了实例分析。本论文研究成果可为计重收费下收费站的设计和运营管理提供依据。 This paper investigates and analyzes the charging time of the truck under the toll-weighting, and points out that the toll-taking time and the variance of the truck are obviously increased. According to the normal distribution of charging time, the calculation method of toll station capacity is established by using M / G / K queuing model, and an example is given by taking toll station of an expressway as an example. The research results of this paper can provide the basis for the design and operation management of toll station under the weight charge.