Optimization of Urban Traffic Mode Structure in Nanchang City

The supply-demand balance of the urban traffic mode structure means that the urban traffic mode structure should accord with sustainable development. That is, if the resources of the city permit, various modes of transportation in the whole transportation system should cooperate with each other, so that the traffic demand can be met, and people can reach destinations on time, safely, expediently, comfortably, and with the least time and money, and the total impact on environment caused by vehicles and transportation load in the system can be minimized. According to the traffic survey data of Nanchang, this paper establishes the efficiency optimization model of coordinated transportation based on sustainable development. And we, depending on the result of the model optimization, analyze the problem of the current traffic mode structure in Nanchang. Finally, we put forward related optimization solutions.