Determination of a suitable area for density increase in Qazvin city based on AHP, TOPSIS and VIKOR decision models

Building density, as a ratio of the building area (across all floors) to the area of the residential plot, is an important issue in urban planning and land management. Today, due to the scarcity of resources and to reduce urban development costs and provide more desirable and yet economical services, attention has been drawn to population densification and consequently, increased building density. What criteria are effective in determining density and how effective they are, is an important issue that should be considered in determining density. Since several quantitative and qualitative criteria influence density determination, it is necessary to use decision support systems to integrate and combine criteria. The purpose of this study is to identify factors affecting building density and finally, determine the suitable area for increasing density in Qazvin. In this paper, the AHP, TOPSIS, and VIKOR methods are used for criteria weighting and area prioritization to increase the reliability coefficients. Priority areas with all three methods are Mahdieh, Imamzadeh Hossein, Minoodar, Azadegan, Babaei and Imamzadeh Ali, respectively.