Role of Urban Design in Regeneration of Ancient District with Catalyst Approach Case Study: KOLAPA District in Hamedan

Quality improvement with the aim of an increase in citizen's presence and human activities has been one of the central point's attracting plan makers and urban designers all around the world. Nowadays, ancient districts of city that have valuable and ancient fabric work like heart of cities and they lose their social, cultural and economics function. Trying to inject new spirit to these areas and make situation to presence and contribution of everyone are the valuable goals of this approach.one of latest policies in urban development in general and specially regeneration of obsolescence textures is using actions and urban catalyst projects with goals of speedup and facilitation in process evolution in fabrics with use of contribution of social citizens power and local capacities. In fact urban catalysts are a new redevelopment strategy that includes landscapes and constructions to guide urban development. Urban catalysts are generators to return prosperity to the area of regeneration projects to initiate the cycle of people`s activities. The main issue of this research is the effect of urban catalysts in regeneration process of ancient texture. Methodology of this research is based on applied ways that include two courses of analysis- descriptive and statistical; the first part tries to review outstanding and important documents in urban regeneration and urban catalyst domain to achieve frame work concept to recognize k whole research ways. The second part, with dispensation of questionnaires ,depends on research goals in analysis of information with SPSS22 software (n=96). Article conclusion points out that according to urban catalyst aspects that include: sociality-cultural, economic, spatial and environmental objects, sociality –cultural aspect in KOLAPA district has allocated more priority and social concern turns out to be the main issue in urban catalyst approach. In social aspect: social interaction, contribution, belief, security are much important than other objects.