urban fabric

Today city residents are experiencing a new way of life which is unprecedented ever since the urbanization concept appearance. The continuous demand to build and maintain the real city space with all the well-known problems, alongside the simultaneous management of urgency and the presence of a developing virtual parallel world, has baffled the city's management sys tems and city's residents. One of the proposed solutions is employing a machine approach to solve these related issues. The general purpose of this research is to provide a comprehensive definition of the concept of urban technology synthesis in the area of physical space as an urbanism machine. This inves tigation is a comparative s tudy to allocate and provide a particular paradigm for the introduction of augmented reality ins tances utilizing matter and information combination via technology in urban spaces. After the semantic framework formulation of the mentioned concept, recognition of tools ins tances in the context of nowadays cities have been considered. In the process of this research, the phenomenon of augmented reality has been retrieved, with its definitions and capabilities as tools for the realization of technological synthesis in the context of current cities. Another result of this research is the introduction of some advantages in applying augmented reality in cities.

What is called the problems of Tehran metropolis now a days, is deep- rooted in the policies ofurban planning in our country. Since not far past up to now, immigration from all over the country to Tehran, irregular growth of urban population, inconsistency with urban infrastructure development, environmental pollution and low quality of living areas, erosion of self -growing fabric in most areas which get erosion very quickly due to not being benefited from minimum constructional standards, service and urban infected organ are all those problems that a city such as Tehran is confronted with. These cases caused that the greatest growth center of the country loses its capability of attracting the possibilities and parameters needed for efficient development and due to heavy pressure imposed by other towns and villages, this city is now suffering from serious problems which only by allocating extra budgets and additional funds, may be temporarily decreased. The topics which will be discussed in this article are those problems arisen from immediate neighborhood of two heterogeneous fabrics which have not been properly paid attentions to. So it has been tried in this article to address the heterogeneity in Tehran, caused by economic and social problems. In this article different aspects of the issue from urbanization viewpoint with analytical approaches and the existed challenges have been addressed.