Abstract:

In view of the time and space distribution disequilibrium of urban rail transit passengers, the paper proposes quantitative evaluation method of passenger distribution equilibrium based on the Gini coefficient on the background of urban rail transit network operation. Through the Lorenz curve and Gini coefficient method, the passenger distribution is estimated and discussed. The results show that it is a simple and effective way to evaluate the passenger equilibrium with different grains based on the Gini coefficient. It provides support for allocating urban rail transit capacity resource , improving the efficiency of resource use and meeting the needs of passengers.

Key words: urban traffic, equilibrium, Gini coefficient, network passenger, Lorenz curve, leastsquares curvefitting

摘要：

以城市轨道交通网络化运营为背景，针对城市轨道交通客流分布时空不均衡特性，提出基于基尼系数定量化评价城市轨道交通客流分布均衡性的方法.通过洛伦兹曲线和基尼系数方法对我国某城市轨道交通客流均衡性进行实证分析和探讨.通过实例验证，证明运用基尼系数对城轨客流均衡性进行定量评价的方法简单快捷，能够面向不同的路网对象进行评价，为城轨交通运力配置提供辅助决策支持，对提高资源使用效率、满足乘客需求具有一定的指导意义.

关键词: 城市交通, 均衡性, 基尼系数, 路网客流, 洛伦兹曲线, 最小二乘曲线拟合