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Developing a Methodology for Evaluating the Vulnerability of Urban Transportation Networks after an Earthquake

Mahmoudabadi, Mahdiyeh | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 51478 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Nassiri, Habibollah
  7. Abstract:
  8. Natural disasters, earthquakes in particular, claim many human lives and damage major lifelines such as transportation networks. Transportation networks play an important role in various stages of response to disasters, such as evacuation, search, rescue and reconstruction missions. Hence, special attention must be paid to transportation networks in any disaster management system. Hence, in order to reduce the impacts of earthquakes on denser cities and metropolitan areas, analysis of the resiliency and vulnerability of critical infrastructures such as transportation network, can be used as an effective strategy.The resiliency and vulnerability of transportation network have attract a lot of attention recently. In order to assess these issues quantitatively, operational measures are needed. In this paper, the concepts of link importance and site exposure are introduced. Also, several link importance indices and site exposure indices are derived. The measures are calculated for the road network of Mashhad. For computational reasons, in this paper we use the EMME2 software for allocating traffic in our case study network and then by using presented models the measures are calculated. Results are collected in a GIS for visualization, and are presented per link and region. According to results it seems that regions 1, 2 and 4 are the most vulnerable regions in Mashhad transportation network where travelers will experience significant increase in travel time when a certain link is closed. In addition, according to link importance results, it can be concluded that most critical links in this network are bridges such as Fajr bridge, Imam Hossein bridge and Alqadir bridge
  9. Keywords:
  10. Shortest Path ; Disaster Management ; Transportation Network Vulnerability ; Network Resiliance ; Mashhad ; Links Importance ; Sites Exposure

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