چکیده:
The historical urban tissues are the rich sources of social culture history; so need to be revitalized because of “obsolescence” process during the ages and it is quiet natural. Rather than the characteristics of the historicaltissue must be updated to meet the contemporary human needs by “integrated revitalization”. This method knownas a staged process which followed planned mechanism. Beside of all of this integrated revitalization based onmaintaining natural capital for present and future generation which is known as “Sustainability”. The main aim of
this paper is to propose a model for integrating the two concept of sustainability and revitalization of historic urbanquarters and to indicate an appropriate strategy for their revitalization. Based on this aim, this study use analyticaldescriptivemethod according to documents and theoretical framework. So this study is based on several stages:first presents the theoretical review on the concept of “revitalization”, and its relationship with sustainability;next, it introduces the characteristics, role, selection process and scaling method of sustainability in compare with
revitalization. The paper then, as the main contribution of this paper, proposes the model for measuring the levelof sustainability in historic urban quarters and determines some proposals to achieve revitalized and sustainablehistoric urban quarters. Therefore, when the level of sustainability is high in any one of these three structures, itmeans that the level of obsolescence is low in the same structures of an historic urban quarter. The result of this
paper leads us to say that, the level of sustainability is a new (additional) input in the strategic planning process ofrevitalization and sustainable urban revitalization of historic urban quarters. Finally, the paper concludes with abrief summary on the general arguments of the paper. As aforementioned, there are three strategic approaches in the
revitalization process. Accordingly, there will be three proposals according to the level and types of obsolescence,sustainability and development dynamics in order to achieve more sustainable historic urban quarters. The firststrategic approach is determined by whether the area has a high resource value with physical obsolescence, highdevelopment dynamics and a high sustainability level. The possibility of high development dynamics, which areaccepted as an historic urban quarter is still an attractive proposition for its current use and/or for alternative uses.
In respect of these results, an historic urban quarter, where physical obsolescence and high development dynamicsis present, it is necessary to implement physical revitalization as a short-term strategy and functional regenerationas a long-term strategy. In the second proposal, the strategic approach is applied when an historic urban quarterhas only a partially sustainable position due to the presence of physical and functional obsolescence in the physical
structures and problems in the socio-economic structure. If an historic urban quarter has physical and functionalobsolescence, the development dynamics are in a static state. According to these results, the proposal shouldbe to implement physical revitalization as a short-term strategy and functional diversification as a long-termeconomic revitalization strategy to increase the attractiveness and sustainability level of historic urban quarters.
The third proposal is applied when an historic urban quarter is in an unsustainable condition and demonstrates ahigh degree of physical, functional and locational obsolescence. If an historic urban quarter has these three typesof obsolescence, the development dynamics are in a declining and/or deteriorating state.
خلاصه ماشینی:
Developing a Conceptual Model for Urban Texture Sustainability: an Integrated Revitalization Approach Abstract Mehrnoush Hasanzadeh* Hossein Soltanzadeh** The historical urban tissues are the rich sources of social culture history; so need to be revitalized because of "obsolescence" process during the ages and it is quiet natural.
In the second proposal, the strategic approach is applied when an historic urban quarter has only a partially sustainable position due to the presence of physical and functional obsolescence in the physical structures and problems in the socio-economic structure.
Noha Nasser (2003), in his research project entitled " Planning for Urban Heritage Places: Reconciling Conservation, Tourism, and Sustainable Development", emphasizing the dichotomy between protection and changes in historical area by providing Cultural-oriented criteria in the conservation based on sustainable development for the presence of tourists and booming economy in these places.
Stubbs (2004), in a research entitled " Heritage-sustainability: developing a methodology for the sustainability appraisal of the historic environment," in large-scale theoretical studies, presented historical issues in three social-cultural, economic and public dimensions, and proportionate Each of the required benchmark issues is also considered for the assessment in the sustainability level.
Attention to the concept of sustainability coincides with the advent of the Nature Conservation Movement in the late 1960s & 1970s ,some debates about "Limits to Urban Growth" (Meadows, et al, 1972) and the "Green Economy" (Pearce, 1989; Dasgupta, 1993; Dresner, 2002).
Based on the results of physical, social, economic and value analysis, it is possible to identify the type and level of obsolescence as well as trends in the development of historical textures and adopt appropriate strategic approaches for regeneration.