National Geographical Organization Scientific- Research Quarterly of Geographical Data (SEPEHR) 2588-3860 19 75 2010 10 23 The Use of Expert System and Dynamic GIS in for Instant Guidance of Traffic in Tehran on the Basis of Air Pollution Condition The Use of Expert System and Dynamic GIS in for Instant Guidance of Traffic in Tehran on the Basis of Air Pollution Condition 78 83 26629 FA Nahid Sajjadian Assistant Professor, Shahid Chamran University of Ahvaz Mahyar Sajjadian Master of Science in (GIS) and Remote Sensing, Science and Research University of Tehran Journal Article 2010 04 27 Tehran is one of the most polluted cities in the world in terms of air pollution, and according to surveys, about 70% of this contamination is due to transportation and heavy traffic. Traffic monitoring is now being conducted using traffic lights and related equipment, as well as air pollution sensing stations. But the problem is that these systems lack the necessary ability of immediate reactions and traffic management in terms of time and location and according to air quality index.<br /> It seems that the use of an expert system based on GPS, dynamic GIS, and timed relationship databases is capable of providing intelligence and immediate operation to the traffic control system. The research method is analytical-practical. According to the findings of the research, the expert system, based on the correct use of GIS, GPS and timed relationship databases, is capable of providing intelligence and immediate reactions to a traffic control system based on air quality management. Finally, based on the findings of the research, a conceptual design of such an expert system was proposed. Tehran is one of the most polluted cities in the world in terms of air pollution, and according to surveys, about 70% of this contamination is due to transportation and heavy traffic. Traffic monitoring is now being conducted using traffic lights and related equipment, as well as air pollution sensing stations. But the problem is that these systems lack the necessary ability of immediate reactions and traffic management in terms of time and location and according to air quality index.<br /> It seems that the use of an expert system based on GPS, dynamic GIS, and timed relationship databases is capable of providing intelligence and immediate operation to the traffic control system. The research method is analytical-practical. According to the findings of the research, the expert system, based on the correct use of GIS, GPS and timed relationship databases, is capable of providing intelligence and immediate reactions to a traffic control system based on air quality management. Finally, based on the findings of the research, a conceptual design of such an expert system was proposed. https://www.sepehr.org/article_26629_0d4caa61a340cc953d6d0ec97ecd6180.pdf