Evaluation of Urban Resiliency in Physico-Structural Dimension of Karaj Metropolis

Cities as the most complex man-made structures have been always exposed to natural and man-made hazards; these unpredictable risks have imposed serious impacts on urban areas. Meanwhile Urban Resiliency is the ability of the cities to respond quickly to inappropriate and unpredictable conditions, and to make them stand over the situation and enable them to remain stronger even after the disaster. Karaj as one of the metropolises of Iran and as the nearest city to the capital, has a close connection with economy and employment of Tehran. There has been always a risk of earthquake in Karaj City as geologically it surrounds with Tehran, Ray and Kahrizak faults which have considerable influences on Karaj resiliency. Thus the objective of this research is to formulate the effective indicators on Physico-Structural resiliency of Karaj and to assess them in the city based on the individual characteristics of each region. The indicators have been defined through literature review and in-depth expert-interviews. According to experts answer to the questionnaire, the 11 indicators were found and weighted by AHP and the importance of each is determined in Physico-Structural resiliency of Karaj. Then, relying on spatialoccasional framework and using Arc GIS software, each of eleven indicators are defined as a layer which affects Karaj resiliency. By overlaying the layers and applying each one s weight in the numerical range of zero to one, the final layer of Physico-Structural resiliency of Karaj is obtained in the numerical range of one to four. The result represents 1.96 as the lowest number of resiliency and 3.94 as the highest in Karaj. Also region No.1 and No. 8 have the lowest rate of Physico-Structural resiliency and regions No.12 and No.10 respectively has the most.

کلیدواژه ها:

Resiliency ، Urban Resiliency ، Physico-structural Dimension ، Karaj Metropolis