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从复杂网络的角度,研究了南昌市公交线路、公交站点和公交换乘3种不同网络的拓扑结构特性,计算了各网络的特征路径长度、聚类系数、度、邻近度和介数等.研究表明:南昌市公交线路和公交换乘网络属于小世界网络,但公交线路网络并不具有明显的指数性或幂律性,公交换乘网络具有指数分布特征;公交站点网络度分布服从幂律分布,但不具有小世界性质.与其他城市公交网络进行比较,针对南昌市公交站点网络存在网络直径和特征路径长度较大的特点,提出了南昌市公交网络优化的具体建议.
From the perspective of complex network, this paper studies the topological features of three different networks, including bus lines, bus stops and bus transfers in Nanchang, and calculates the characteristic path length, clustering coefficient, degree, proximity, and mediation of each network. The research shows that the bus lines and bus transfer networks belong to the small-world network in Nanchang, but the bus lines do not have exponential or power-law network, and the bus transfer network has exponential distribution. But does not have the character of small world.Compared with other urban public transit networks, this paper puts forward the specific suggestions of public transit network optimization in Nanchang for the characteristics of network diameter and characteristic path length of the public transit network in Nanchang.