The Prediction And Analysis Of The Freeway Network Traffic

Freeway has been playing an important part in highway transportation with security, comfort and convenience. Along with the development of highway construction, the structure is changing from simple tree frame to flexible network structure. So it can induce and transform a portion of traffic and this trend must bring out some effects to the constitution of highway transportation and traffic distribution.This dissertation is based on this problem and dose research on it. Firstly, the paper studies the relationship between the traffic and various impact factors grounded on the characteristic of freeway and the mechanism of traffic. Secondly, the travel psychology characteristics and behavior characteristics are analyzed from the users' point of view and it points out travel behavior is a kind of consume choice behavior. At the same time, multi-road choice model is built on the Logit model under the maximum utility principle with the economic utility theory. Then due to the presence of network structure in freeway and the integral consideration that different vehicles have different feeling about the real impedance, the paper proposes a traffic distribution method that different vehicles different distribution based on Wardrop equilibrium theory by dealing different power of different vehicle in time and expense integrative. At the last, combined with the real network structure of Shandong freeway, the traffic variety is analyzed according to the period of time and the impact is analyzed due to the change of highway construction.