公交—地铁复合网络构建及网络特性分析

Construction of Subway and Bus Transport Networks and Analysis of the Network Topology Characteristics

公交和地铁是城市公共交通系统中最主要的两个组成部分,在大力推行公交优先政策的今天,我们却发现公交分担率并没有得到明显改善.本文运用Space L和Space P方法分别构建了北京市公交—地铁复合网络及其子网络.实证研究了公交—地铁网络的基本拓扑性质并对复合网络及其子网络的网络特性进行比较,从整体的角度,综合性地分析城市公共交通运输网络的特性及换乘状况.结果表明,北京市公交—地铁复合网络具备小世界和无标度网络特性,同时也证明了地铁及公交各自特点的充分发挥,二者高效的相互配合、衔接,是整个公共交通运输系统发挥最大效能的基础.

Bus and metro are two of the main components of urban transportation system. The cities vigorously advocate the bus priority policy, however, we find the sharing of public transport has not been significantly improved. In order to make an empirical study of urban transportation networks, from a unitary perspective view, this article establishes a compound network of subway and bus transport networks in the Space L and Space P. The topology characteristics of the compound network are compared with its subnetworks, the result shows that the compound network has the properties of small world and scale-free network. To give full play of urban transportation is to make sure both of subway and bus transportation be fully used and to strengthen the link and coordination.