Investigation and analysis of construction violations and explaining the key affecting factors (A case study of Yazd city)

Physical planning of cities is being prepared for the sustainable development of cities, but these plans are always faced with problems, one of these problems is the occurrence of construction violations during the execution of physical plans that change the city's image. This research has two goals, first, the construction violations and the way to deal with these violations will be examined and analyzed, In the next step, the key and affecting factors in the occurrence of construction violations will be explored. The research method is descriptive-analytical and the exploration analysis is based on the exploration of the key factors in the occurrence of constructional violations. The most important factors affected in the occurrence of construction violations were initially investigated with the views of the experts using the Delphi method (three steps) which 46 factors were selected as effective factors, In the next step, using Micmac software, 15 factors were selected as the most influential factors.  The results show that, firstly, construction violations have been 5 times higher from 1391 to 1395, and secondary the most constructional violations has been in residential applications with a value of 0.74 and the greatest deal of the municipality with constructional violations was the use of fines with a value of 0.72. Finally, the most important key factors were analyzed and evaluated. The results show that in the case of constructional violations, the four factors, namely, the municipality, laws, income, Profit Seeking and public awareness have the most impact on violations.