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Identification of Inaccessible Roads and Vulnerable Settlements in Dhaka City Using ArcGIS Tools
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Author(s): Tahsina Islam (University of Texas at Arlington, USA), Md. Azijul Islam (University of Texas at Arlington, USA), Md. Shahidul Islam (Dhaka University, Bangladesh)and Nishat Farzana Nimni (University of Maryland Eastern Shore, USA)
Copyright: 2020
Volume: 3
Issue: 1
Pages: 13
Source title:
International Journal of Disaster Response and Emergency Management (IJDREM)
Editor(s)-in-Chief: Dean Kyne (The University of Texas Rio Grande Valley, USA)and William Donner (The University of Texas Rio Grande Valley, USA)
DOI: 10.4018/IJDREM.2020010101
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Abstract
Dhaka, the capital, is a highly populated city in Bangladesh. Indiscriminate and unplanned urbanization, with narrow road networks, has made the city more vulnerable and risk-prone for any disaster. This study focuses on the identification of inaccessible roads and vulnerable areas of Dhaka city for improving search and rescue operations, response initiatives, and debris management. For the study purposes, four different locations of Dhaka city have been selected to analyze the accessibility of emergency vehicle and equipment for rescue operations. The narrowest roads and vulnerable areas including individual houses have been identified using ArcGIS. The analysis reveals that a maximum of 60% houses of old Dhaka has been found vulnerable whereas in Uttara there are 2.4% vulnerable houses. In addition, the traffic volume analysis is performed for the most vulnerable area in terms of narrow roads. Thus, vulnerable houses have been identified on the basis of maximum congestion in a scenario of no disaster to access basic facilities like hospital and fire stations.
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