The Application of Expert System to the Screening of Atmospheric Environmental Impact from Comprehensive Road Traffic Planning in Shanghai

This paper presented the development of an expert system (ES) and its integration with GIS and mathematical models to advance a method to identify the significant atmospheric environmental impact caused by road traffic. Based on the literature reviews and consultations with experts, the paper addressed two major impact factors-photochemical smog and visibility for which ES knowledge base and reasoning had been developed. The development of GIS platform was based on the ArcObjects, and the ES was developed using ClipsActiveXControl. Finally, a case study of the screening of atmospheric environmental impact of comprehensive road traffic planning in Shanghai was presented. The case study shows that ES and its integration with GIS and mathematical models are supportive for the preliminary assessment of atmospheric environmental impact of urban traffic planning, and the component technology is an important means for system integration, which will improve the efficiency and flexibility of system development.