Explaining optimal model of urban development, with consideration of the influence of sphere effects in Boroujerd City

Physical development of cities, especially in the second half of the present century, it turns out that habitable land under the influence of factors. the objective of the study is to explain the mechanisms affecting urban development in boroujerd and its influence of sphere into a model. in this study, the effect of economic and social factors or mechanisms on boroujerd’s urban development and its regional penetration was studied. employment and its diversity in boroujerd city have led to the attraction of immigrants and the retention of the population in the city, which is largely dependent on the economic activities of workshops and industrial companies. considering the urban structure of boroujerd and also examining the theoretical foundations of the factors affecting urban development, which is referred to as a mechanism with the word mechanism, in general, economic as well as social and cultural factors can be used as an approach.