Simulation Study Of Vehicle Emission Based On The Urban Traffic Control Strategy

With the development of urbanization and the holdings of vehicle largely increasing, the control and renovate the pollution from vehicle emission has become one of urgent issues of urban environment sustainable development. In order to understand the vehicle emission laws and study the impact of urban traffic management and control strategy to vehicle emission, the thesis selects the IVE model which was specifically designed for developing nations, from analysis and comparison these foreign mature vehicle emission model, as the tool of the evaluation and calculation of vehicle emission factor, and make it localization according to the traffic and environment of Wuhan city. At the same time the IVE model was reprogrammed and its interface was developed by C language for more versatile and easy to transplant. The thesis has improved the Urban Traffic Microscopic Simulation Model which developed by Dr. Shang Lei, increased bus action model, dynamic route choice model, traffic signal control optimization model and so on to make it has more realistic simulation and accurate analysis ability. Final the vehicle emission factor was calculated based on the average speed and the vehicle drive cycle which result from the simulation of the improved Urban Traffic Microscopic Simulation Model coupled with the localization IVE model.The main contents are listed as follows:1) Through the search of Wuhan city traffic and environmental condition, vehicle classify, I/M class, fuel characteristic and emission feature of local vehicle on field based on the investigation of relevant units, analysis of experimental data and literature inquiry the localization IVE model has been completed.2) The IVE model has been reprogrammed and its interface has been developed by C language, the new model has been more versatile and easy to transplant.3) The Urban Traffic Microscopic Simulation Model has been improved and been coupled with the localization IVE model; the part of parameters of the simulation model has been verified.4) The impact to vehicle emission due to multiple traffic management and control strategies have been studied by the improved Urban Traffic Microscopic Simulation Model, which included traffic signal control strategy, dynamic route choice strategy, different fraction of vehicle technology in the entire fleet, the public traffic system and so on.