Comparison and Evaluation Frequently and AHP methods in parking site selection (Case study: 4 region of Tehran 15 zone)

Parking areas are the most important infrastructures of urban transportation systems. They have a critical role on reducing parking at street corners and traffic stresses issues. Parings can function effectively when they were built in suitable¬ places. Parking management is an important tool in urban management. GIS is science and technology of Geo-referenced data analysis. It can overlay number of parameters simultaneously. GIS is suitable tool for Multi-criteria deciding making like site selection. Weighting and layers overlay methods are common problems in the site selection process using GIS. In this article in addition to provide suitable parkings optimum site selection in the 4 region of Tehran 15 zone by using GIS, comparison of different weighting methods for parkings site selection is also provided. By use of weighting methods like: Statistic Correlation, Fuzzy AHP, AHP three degrees, Structured AHP. 4 scenarios of parkings site selection were generated. For converting areas to important points, derived areas were categorized in 3 classes of high, medium and low suitability using standardization methods. Finally, according to the methods of calculation, the second scenario- Fuzzy AHP method -was the most appropriate scenario in the Parking site selection in the study area.