Authors:
Chuanci Cai
and
Xuan Zhang
Affiliation:
School of Traffic and Transportation, Beijing Jiaotong University, China
Keyword(s):
urban road network, controllability, network topology, PBH theorem
Abstract:
In order to study the factors influencing the controllability of urban road network, the paper calculates the network topology features of the real urban road networks and the simulated urban road networks, such as average degree, 2-core, clustering coefficient, heterogeneity, organic ratio and meshedness coefficient. According to the PBH judgment theorem and the minimal control input theorem, the minimal number of control inputs and the network controllability are obtained. Then the correlation between network controllability and topological characteristics is analyzed. It is found that heterogeneity, 2-core and average degree have a great influence on controlling the urban road network. The results show that it is of great significance to balance the function, strengthen the connectivity and regularity of network to ensure the orderly operation of urban road network.