بررسی تطبیقی عوامل تبیین کننده ی تاب آوری در بافت های جدید و قدیم شهری (مطالعه موردی: کلان شهر تبریز) (مقاله علمی وزارت علوم)
درجه علمی: نشریه علمی (وزارت علوم)
حوزه های تخصصی:
شماره صفحات:
۴۱ - ۶۰
دریافت مقاله
آرشیو
چکیده
با توجه به وجود مستمر بحران ها و مخاطرات و افزایش آسیب های ناشی از آنها بر شهرها، در عصر حاضر مفهوم تاب آوری شهری به یک اجماع جهانی برای دستیابی به توسعه ی پایدار شهری تبدیل شده است. در این راستا، به منظور برنامه ریزی و تحقق شهر تاب آور، اولین قدم شناسایی وضعیت ابعاد و مؤلفه های این رویکرد در فضاها و بافت های مختلف شهری محسوب می گردد. با توجه به اهمیت موضوع، هدف از پژوهش حاضر شناسایی عوامل تبیین کننده ی تاب آوری و بررسی میزان مطلوبیت ابعاد مختلف آن در بافت جدید و قدیم کلان شهر تبریز می باشد. بنابراین، روش تحقیق از نظر هدف کاربردی و از منظر ماهیت اکتشافی-تطبیقی بوده که برای تجزیه و تحلیل اطلاعات از مدل سازی معادلات ساختاری در نرم افزار Amos استفاده شده است. جامعه ی آماری تحقیق نیز شامل شهروندان بافت جدید و قدیم شهر تبریز بوده که بر مبنای فرمول کوکران 384 نفر به عنوان حجم نمونه تعیین گردیده است. یافته های تحقیق حاکی از آن است که مهمترین عوامل تبیین کننده ی تاب آوری در بافت قدیم شهر تبریز عوامل فردی، اجتماعی و مدیریتی-نهادی به ترتیب با ارزش 63/0، 61/0 و 54/0 و در بافت جدید شهر عوامل کالبدی-زیست محیطی، اقتصادی و مدیریتی-نهادی به ترتیب با ارزش 77/0، 72/0 و 69/0 می باشد. همچنین نتایج نشان می دهد که بافت جدید شهری از منظر استحکام سازه ای و کالبد در وضعیت مطلوب تری قرار داشته، درحالی که بافت قدیمی دارای سرمایه های انسانی و اجتماعی مناسب تری می باشد. این موضوع ناشی از نظام مدیریتی حاکم یعنی تکنوکرات گرا بوده که اثرات مختلفی بر روی بافت های قدیم و جدید شهر داشته است.Comparative Study of Explanatory Factors of Resilience in New and Old Urban Textures (Case Study: Tabriz Metropolis)
Extended Abstract
Introduction
Due to the continuous existence of crises and dangers and the increasing pressures and damages caused by them on cities, in the present era, the concept of urban resilience has become a global consensus to achieve sustainable urban development. In this regard, in order to plan and realize a resilient city, the first step is to identify the dimensions and components of this approach in different urban spaces and contexts. Therefore, considering the importance of planning resilient cities in the present era and the need to recognize and assess the current situation, this study tried to identify the factors explaining the resilience and the desirability of its various dimensions in the new and old texture of Tabriz metropolis. It can be said that currently we are witnessing the polarization of most cities in the form of new and old textures. The old texture of today’s cities, due to the low value of investment and the shift of economic values to other areas of the city, has suffered a decline in environmental quality in various dimensions. On the other hand, the spatial changes of recent years in the spatial structure of cities have caused the new urban textures to be in a more favorable condition in terms of economic, physical, and infrastructure indicators. This can also be seen in the resilience of cities.
Method
The applied study is of exploratory-comparative nature. The structural equation modeling in Amos software was used for the data analysis. The statistical population of this study included citizens of the new and old textures of Tabriz metropolis, out of whom 384 people were selected as members of the sample based on the Cochran's formula.
Results and discsussion
The results showed that the most significant factors explaining resilience in the old texture of Tabriz are individual, social and managerial-institutional factors. The coefficients extracted from the structural model for each factor is 0.63, 0.61 and 0.54, respectively. Moreover, among the sub-variables, the most explanatory factors of resilience are related to the variables of the importance of the place of residence and the sense of belonging, sense of social responsibility in the face of crisis and the importance of health and safety of others in society, as well as helping neighbors and other citizens, necessary and positive thinking about problems, and the ability to create different solutions with a value of 0.73, 0.71 and 0.65, respectively. Unlike the old texture, the most important factors explaining resilience in the new texture of Tabriz are physical-environmental, economic and managerial-institutional factors The coefficients derived from the structural model for each is 0.77, 0.72 and 0.69, respectively. Also, among the sub-variables, the most explanatory factors for resilience in the new texture are related to the variables of the strength of buildings and infrastructure, elasticity of passages, income and its continuity and permanence with values 0.91, 0.85 and 0.82, respectively.
Conclusion
The results on three old neighborhoods of Tabriz (Rasteh Koocheh, Nobar and Koocheh-Bagh neighborhoods) and three new neighborhoods of the city (Yaghchian, Marzdaran and Roshdieh neighborhoods) showed that the construction of new neighborhoods are plan-based. Previously, these neighborhoods have been in a favorable condition in terms of physical resilience. In these neighborhoods, access to rescue services, structural strength, etc., has made their physical resilience in a more favorable situation than the old parts of the city with the deterioration of buildings, infrastructure, lack of elasticity of roads, etc. In terms of social and individual resilience, the old texture is in a better condition than the new texture, and this is due to the high level of sense of belonging as well as social relations and interactions in the these neighborhoods. In terms of economic resilience, the new textures are in a better condition than the old textures in terms of land value, residents' incomes and the flow of investments. Finally, in the dimension of managerial-institutional resilience, we see unfavorableness in all levels of the city and different regions.
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