![]() ![]() The second mode is o suggest that the public transport system and car traffic should be the common subject, and the sharing rate of the two is similar. They advocate the decentralized development of the city, the decentralized function of the city center, long-distance travel as the main mode, and typical cities such as Los Angeles and Detroit. ![]() ![]() Transcad user equilibrium full#The first mode is to advocate the full development of car travel. At present, according to the national conditions of various countries and the experience of urban transport mode development, scholars put forward four urban transport development modes. The first research aspect is the development mode of urban spatial layout and traffic structure. The existing research on urban traffic structure mainly involves four aspects. Moreover, it can also realize the harmonious development of human society and natural environment. To enhance the proportion of high-efficiency, low-energy, low-pollution, and high-capacity modes of transportation in residential travel, its role in solving urban traffic problems should be more lasting and effective than blindly expanding the supply of transportation. With a certain amount of traffic travel demand and difficulty in the road reconstruction and expansion, a rational traffic structure based on the concept of sustainable development should be established for the historic city. Therefore, how the inadequate transportation supply meets the ever-increasing trend of total traffic demand and structural diversification, realizing a new balanced supply-demand relationship, has become an urgent issue to be resolved. Meanwhile, a lot of resources are consumed in this process, and the historic city landscape and ecological environment are severely damaged, resulting in that the ecological environment and transportation system are on the brink of collapse. Modern cities, however, continue to suffer a vicious circle of traffic congestion which is formed by inappropriate traffic management measures. Therefore, any planning and construction activities in historic cities should and must give priority to historical and cultural protections. The first one is the relationship between the development of historic cities and the current level of transportation services, the second contradiction is the relationship between the growth of the total traffic demand and the limited supply of the city, and the relationship among the reconstruction, extension, and style protection of historic urban infrastructure is the third contradiction. Presently, there are three major contradictions in the transportation development of historic cities. Historical districts refer to the important positions in the history and culture of a certain area, representing the cultural context of the region and the building group reflecting regional characteristics. The research results can be the important reference for traffic planning in historic districts. By changing the constraint conditions of the model, two sets of different governance policies are compared and analyzed, and some feasible suggestions on improvement of traffic structure are also put forward. Finally, the model presented in the study is verified by the historical districts of Academy Street in Zhengzhou city, China, and the optimal structure and optimal traffic share of each traffic mode in the block are obtained. By iterating the Nash equilibrium solution of the model, the optimal structure and the optimal share of the traffic modes in the historical districts can be predicted. The model is based on the goal of maximizing the generalized profit, and modeling with environmental pollution, energy utilization, and road service level as the common constraints of various traffic modes. Accordingly, a dynamic game model of complete information is established for the trip mode of historical districts, taking into account the economic sustainability, environmental sustainability, and social sustainability of the traffic development. Firstly, the logit model reflecting the sharing rate of the traffic mode is established by using the generalized cost method to quantify all the factors that influence the travel mode selection. ![]() To perform the reasonable traffic structure in the historical districts and effectively alleviate the contradiction between limited traffic supply and rapid growth of the traffic demand in historical districts, a dynamic game model of traffic competition is established in this paper, aiming at the green transportation and sustainable development. ![]()
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