Spatial analysis of unauthorized constructions in Bostanabad usingFeatures of Arc GIS software

Construction violations are one of the anomalies of cities, especially in developing countries. In line with the increase in effective demand in the construction industry, cities have faced huge challenges. The aim of the current research is the spatial analysis of construction violations based on the Article 100 Municipal Commission in Bostan Abad city. The current research is applied in terms of purpose and descriptive-analytical in terms of nature. Construction violations registered in the Article 100 Commission of Bostan Abad Municipality during a 5-year period (1396-1400) were analyzed temporally and spatially using spatial analysis techniques in the ArcGIS software environment. Then, using the average nearest neighbor distance (ANN) model, the pattern of spatial distribution of construction violations in the city of Bostan Abad during the 5-year period of study was determined. Also, the Kernel Density Estimation (KDE) technique has been used to analyze high or low amounts of construction violations registered in the Article 100 Municipal Commission in Bostan Abad city. According to the results of the research, according to the frequency of construction violations registered in the Article 100 commission of Bostan Abad city during a period of 5 years (1396-1400), Farhangian, Waliasr, Molvi and Gurbanabad neighborhoods with 227, 190, 114 and 93 cases of construction violations registered in the Commission of Article 100 of Bostan Abad city, have allocated a major part of construction violations. The neighborhoods of Qarakore and Eskikandi have the lowest frequency of construction violations with 37 and 49 cases of construction violations recorded during the 5-year period under study. The pattern of spatial distribution of recorded building violations was also cluster type. It should be noted that most of the registered construction violations are related to construction violations without a construction permit and exceeding the construction permit, which have been registered in the form of residential and commercial uses.