Spatial Analysis of the Effect of Economic and Physical Components from the Urban Planning Perspective on Trials of the City of Qazvin on Violations of Construction

Controlling urban structures in order to optimally manage the city is mainly carried out through urban construction regulations, which, despite the various measures of urban management, annually, significant cases of construction violations in cities are reported. In fact, construction violations can be defined as non-compliance with urban construction regulations that threaten the quality of life in cities. The purpose of this study was to investigate the relationship between economic and physical factors and the number and amount of construction violations in Qazvin city that by identifying the factors affecting each type of construction violations, a better understanding of the existing status of construction violations can be achieved and provide a suitable context for future planning. The research method is descriptive-analytical. To evaluate the effect of spatial patterns of the city on violations, weighted overlay method was used in GIS software. The results showed that there is a relationship between the economic and physical factors and construction violations. Economic factors show direct relationship with the number of violations of the construction of the excess on the license and the total area of violation of the construction of surplus on the surface and change of land use and inverse relationship with the number of violations of unauthorized construction. Also, the number of violations of the construction of surplus on the surface and the change of land use physical factors are directly related and the number of excess violations has a negative relationship with density and physical factors.