Traffic Calming Planning And Its Effect Evaluation For Community

A lot of through traffic and speeding vehicles in community road seriously affect the safety and the living environment of community residents. Traffic calming is the combination of mainly physical measures that reduce and control the negative effects of motor vehicle use. Many countries have sophisticated and organized methods to carry out the measures, and have achieved some results. While our country does not have well defined and systematic study process to facilitate traffic calming measures, and the "people first" concept of traffic calming is not popular. The development and impacts of traffic calming in foreign countries is described. Then the effects of some measures which used in community is investigated, the result suggested that traffic calming measures can reduce the speed of the vehicles within the community effectively.The content of the thesis are completed as follows:(1) The process of traffic calming planning is investigated. In urban communities, the different roads have different functions. Which traffic calming measure should be used depends on the road hierarchy. For the intersections, the connection roads determine the traffic calming measures.(2) The benefits which can be gained from traffic calming depend on the choice of appropriate traffic calming measures and its implementation. Traffic calming device should be chosen based on the type of the problem of the street. There is deep analysis, which is about the impacts of the most popular traffic calming measures to vehicles, community residents, public transport, emergency services, environment.(3) In order to investigating and evaluating the effects of common traffic calming measures, the speed forecasting model which is based on neural network is established. Then takes vehicle speed as the main factor to evaluate the safety and environmental conditions of community. Thus provides a method which can determine the traffic calming measures based on the conditions of the road.(4) Taking the case of university town of Changsha, the road characteristics of university town has been studied in the thesis. The results show that the application of traffic calming measures can effectively reduce vehicles speed.