Analysis of safety parameters in the selection of optimal routes for Search and Rescue (case study: ۱۳ Aban neighborhood of Tehran)

Introduction: Earthquake occurrence seriously threatens urban environments of Iran especially Tehran. Earthquake caused causes wide spread damage, many casualties and extensive damage. The most important needs of accidentalness after happening earthquake is to Rescue and relief services for them at least time, as it is possible. In order to speed up relief, the most optimal rout in term of safety should be considered. Therefore, at the phase before earthquake to survey the safety of rood network and to determine the most optimal route, it is needed to take a series of parameters together with their importance into consideration. By considering this affair at the present study, analytic multi-factor approach to determine and evaluate effective safety parameters for selecting optimal routes to relief optimal routes within the city after occurrence of earthquake has been paid attention and this study was conducted as a pilot study at ۱۳ Aban neighborhood of Tehran. Methods: At the present study, the research aimed to determine parameters affecting on safety of road networks and analyze the relationship between them and affecting amount of every parameters on selecting the most optimal safe route for ۱۳ Aban neighborhood at the municipal district ۲۰ of Tehran. Fording this, Analytic Hierarchy process model as the main model was employed. In addition, the capabilities and analytic techniques of GIS software such as layer coverage were used. Findings: some Parameters including dangerous usages, transportation buildings (such as bridge and tunnel), vulnerability and irreparable losses happened at buildings and population accumulation for determining the optimal safe route to relief as main affecting parameters, so that each of these parameters has different significance level. In addition, the effect of factors such as passage gradient, distance from fault and aqueducts cannot be ignored. Conclusion: The present study that determination and optimization of relief route haven't yet paid attention. Determination and optimization of relief routes can help to provide relay services more at possible least time. Parameters affecting on determination of safe road network include population accumulation, vulnerability and irreparable losses happened at buildings, transportation constructions and dangerous usages.

Keywords:

Earthquake , Rescue & Relief routes , Analytic hierarchy process (AHP) , crisis management , optimization , ۱۳ Aban district of Tehran. , زلزله , مسیرهای امداد و نجات , فرآیند تحلیل سلسله مراتبی (AHP) , مدیریت بحران , بهینه سازی , محله ۱۳ آبان تهران.