MODELING THE COEVOLUTION OF ROAD EXPANSION AND URBAN TRAFFIC GROWTH

The evolution of road expansion and traffic growth (motor vehicle) of urban system is a quite complex process. To investigate the interaction between them, a coevolution dynamics model is proposed in this paper to capture the relationships among traveler, vehicle and road. Then stability analysis and numerical simulation are conducted. The results show that the coevolution model can be stable under certain conditions and there exists a dynamic equilibrium in the evolution process. In order to verify the proposed model, Beijing as a case study is analyzed. Results show that the proposed model provides a new perspective for capturing the characteristic of road and urban traffic and contributes to the coordinated development of the whole transportation system.