کاوشهای جغرافیایی مناطق بیابانی (Aug 2019)
Analysis and Evaluation of the Vulnerability of the Worn-out and Unstable Texture of the City of Bojnourd in the Face of Earthquakes
Abstract
As the study area, the worn-out texture of Bojnourd was found to be incapable of accommodating those who commute in it, especially as a context in which urban problems of Bojnourd are accumulated. It is due to the excessive use and fatigue of this part of the city. This research is descriptive-analytic in terms of the methodology, and its nature is theoretical-practical in terms of purpose. Collection of the data was done through three methods of field work, library study as well as using software and applied models. To analyze the data, the multivariate weighting method was used according to the coefficient and the different impact of each criterion on the vulnerability. Also, AHP-FUZZY technique was used for weighting the variables. Neighborhoods were then extracted and identified, and, using the Arc GIS 10.4.1 software, neighboring maps was developed. In addition, the weighted maps were given fuzzy functions and standard privacy that they lacked through a fuzzy membership program. Finally, using the Fuzzy overly as a tool with a 0.9 gamma, a risk map was derived for Birjand old texture. The results show that there is almost no place in the old texture that is left undamaged. In this case, the most vulnerable part is from the center of the texture to the western margin of the city. Also, the overall risk profile of the area indicates that the whole worn-out part of Bojnord is at a moderate to high risk.
