Urban public transportation modes coupling study based on residents travelling

Using the method of system dynamics under urban transportation system theory implementation, this paper studies the impact factors of contribution rate of urban public transportation-bus, rail transit, and taxi and their corresponding coupling relationship. Four factors are defined, namely, safety factor, convenience factor, comfort factor, and cost factor, to analyze the influence on each mode of public transportation contribution rate through system dynamics flows analysis. And a public transportation mode coupling model is established to provide convenience to urban residents. Furthermore, it is indicated in this paper that the application range of the model makes it widely useful in public transport situation evaluation. The paper also provides improvement suggestion as well as inter-city comparison of public transport coupling situation.