Assessing Tehran’s Urban Structure Effects on Non-Compliance with FAR Regulations

ABSTRACT: Building contraventions have become one of the important dilemmas of many cities like Tehran. The wide aftereffects of the contraventions and the large cost of removing their negative effects, make the reduction of the possibility of their occurrence essential. This paper tries to find the reasons and roots of building contraventions in order to prevent their occurrence through appropriate planning, legislation and decision making. In this paper, it is supposed that some urban conditions and location characteristics could result in more opportunities for the occurrence of building contraventions. Therefore, it tries to find the relationship between Tehran’s urban structure and the most dominant kind of building contravention in Tehran, FAR contravention. To study the relationship, the effects of physical, social, economic and functional factors describing Tehran’s urban structure on the occurrence of FAR contravention is surveyed using the correlation method. The results showed that the majority of factors are related to FAR contravention with confidence coefficient of 99% and 95%. Among them, the main factors are residential per capita, average building price, residential land use area, transport network area, total residential building floor area and the average residential plot area. Therefore, specifying the effects of various factors on the occurrence of building contravention causes their prevention to be more feasible.