Document Type : Research Paper
Authors
1 Professor / University of Tabriz
2 M.A. Student, Faculty of Planning & Environmental Science, University of Tabriz, Tabriz.
3 Assistant Professor, department of RS & GIS, Faculty of Planning & Environmental Science, University of Tabriz, Tabriz.
Abstract
One of the most critical issues encountered during and after an earthquake is optimal routing for emergency evacuation, which is among the initial steps in crisis management and must be executed as swiftly as possible; otherwise, it could lead to an increased mortality rate. Accordingly, the main objective of this paper is to establish optimal routing for emergency evacuation during a destructive earthquake. To achieve this, the influential factors in the vulnerability of the study area were initially identified. In the next stage, the Analytic Hierarchy Process (AHP) was used to assign weights to these factors, and a vulnerability map was then prepared. Following this, the accessibility of District 1 to safe locations, such as medical centers, parks, green spaces, and barren lands, was assessed using QGIS software. Overall, the results indicated that District 1 of Tabriz, due to its location on the active Tabriz fault, is at high risk during earthquakes. The findings also showed that the northwest parts of District 1 are more vulnerable to earthquakes compared to other sections of the district. Subsequently, using the genetic algorithm, an optimal route to a safe location was identified, taking into account factors such as the shortest path and criteria like road width and population density. For this purpose, the starting and ending points representing areas with the highest and lowest vulnerability, respectively were identified. Based on these points, the optimal route, which largely follows Tavanir Highway, was determined.
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