机动车污染模拟和地理信息系统支持

Simulation of Vehicle Pollutants and Support of Geographic Information System

机动车污染是城市大气污染物的重要来源 ,对街区机动车污染排放量的预测和排放模拟对了解城市街区环境污染状况有重要价值。影响机动车尾气污染物扩散的因素很多 ,其中车流量分布、街区形状和地理空间有密切联系 ,因此将机动车尾气污染排放模拟模型和地理信息系统结合起来是很有价值的。文章中将CAR模式的模拟计算和GIS集成在一起 ,通过VisualBasic进行了一个样例开发 ,其中GIS功能由MapX控件实现。

Vehicle pollutants are the main sources of urban atmospheric pollution. It is useful to predict pollutant discharge and to simulate pollutant dispersion due to running vehicles in city. Among many factors which control pollutant volume and pollutant diffusion from motors, distributions of vehicle fluxes and forms of districts are strongly related to geographic positions, so it is valuable to integrate simulation model of vehicle pollutants and GIS. This paper gives an example which combines the simulation of CAR model and GIS. The main application is developed with Visual Basic, while the GIS part is fulfilled with MapX, a software which integrate many GIS functions into a COM(Component Object Model) objects.