The invention provides an urban
public transport network optimization method capable of improving overall transfer performance. In the method, a
public transport network is expressed as relation between stations and lines (cliques, the largest complete subgraph in the network). The method comprises the following steps: setting network
diameter to be N; simulating the growth process of the actual
public transport network to be optimized; starting from an original network with only one
clique, adding one
clique to the original network at each
time step, and forming the network which is composedof overlapped cliques and is logically shown as a structure with (N+1)
layers, wherein, the
clique at a (m-1) layer is mapped into a point at a m layer, and m is not less than 1 and not more than N+1; and regulating the network after one clique is added at each
time step so as to ensure that the network at each layer is composed of the cliques so that the optimized
public transport network becomes an ideal clique network with the depth N. By utilizing the method, average transfer time and average shortest path
time coefficient of the
public transport network can be effectively reduced, and concentration degree of the
bus lines is improved, thus realizing higher
transfer efficiency of a public
transport system.