Evolution Of Urban Space And Urban Traffic Impact Analysis

Today, china's big cities are developing rapidly and have already made remarkable achievements. But a lot of urban problems thus apparent, in particular the uncoordinated development between the evolution of urban space and urban transport troubled many large cities. This paper will analyze and study the interaction between the two aspects.It exits an objective and interactive feedback between the evolution of urban structure and urban transport. Whether it can be formed a coordinated development between them during the development of a city often decides the city's sustainable development potential. This paper summarizes interrelated theory on the evolution of urban structure and urban transport system, defines and analyzes the concepts in their respective area. Paper expounds the impacts on evolution of urban space from urban transport system by mode of transportation, mobility of transportation, transport accessibility and transportation technology innovation. Then it makes the scale evolution of urban space,spatial layout and spatial density as affecting factory, analyzes their impacts on related elements of transport system. Then, based on the above theoretical studies, paper establishes system dynamics model about the evolution of urban space and urban transport interactions, which is divided into 5 sub-modules, expounds feedback relationship of the elements in each sub-module respectively, establishes their own system flow diagram, and finally draw the system flow diagram of the entire model to establish the relationship formula between elements of diagram.The empirical analysis section reviews the history of Beijing city, sums up the interaction between evolution of urban structure and urban transport of Beijing city. Paper makes use of Beijing' urban historical data to test SD model, where the certification valid, just operate system model to get the trend forecasting of Beijing' urban space agencies and transportation development, and meantime do sensitivity analysis on the amount of private car travel,urban spatial scale and rail transportation construction. Finally, based on the analysis of simulation results, it makes recommendation on the future development of Beijing city, such as speeding up the construction of rail transportation,decentralizing urban population while scattering urban functions,establish the urban structure with a small load.