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Network Evaluation Based on Connectivity Reliability and Accessibility

In: Network Reliability in Practice

Author

Listed:
  • Ryuhei Kondo

    (Metropolitan Expressway Co., Ltd.)

  • Yasuhiro Shiomi

    (Kyoto University)

  • Nobuhiro Uno

    (Kyoto University)

Abstract

Our daily lives and activities rely heavily on transportation systems, particularly road networks. At the same time, we face the risk of various types of natural disasters. It is, therefore, extremely important to establish road networks that are robust and reliable under conditions of network degradation caused by natural disasters. Even immediately after a disaster, an area should retain connectivity with its neighboring areas, while at the same time residents in the area should have access to adequate urban services, such as medical facilities, at a reasonable travel cost. To achieve the former goal, the concept of connectivity reliability has been developed, and to achieve the latter, accessibility measures have been proposed. This study proposes a method of evaluating road network robustness against a natural disaster by applying the concepts of connectivity reliability and accessibility. A new network evaluation measure, which considers both the risk of link disruption and the number of opportunities in an area, was first established. Then, the measure was applied to test networks, and the influence of network topology and distribution of opportunities were analyzed. Finally, the road network and medical facilities in Kyoto Prefecture were evaluated using the proposed measure.

Suggested Citation

  • Ryuhei Kondo & Yasuhiro Shiomi & Nobuhiro Uno, 2012. "Network Evaluation Based on Connectivity Reliability and Accessibility," Transportation Research, Economics and Policy, in: David M. Levinson & Henry X. Liu & Michael Bell (ed.), Network Reliability in Practice, edition 1, chapter 0, pages 131-149, Springer.
    • Handle: RePEc:spr:trachp:978-1-4614-0947-2_9
    DOI: 10.1007/978-1-4614-0947-2_9
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    Cited by:

    1. Monfared, M.A.S. & Rezazadeh, Masoumeh & Alipour, Zohreh, 2022. "Road networks reliability estimations and optimizations: A Bi-directional bottom-up, top-down approach," Reliability Engineering and System Safety, Elsevier, vol. 222(C).
    2. Muriel-Villegas, Juan E. & Alvarez-Uribe, Karla C. & Patiño-Rodríguez, Carmen E. & Villegas, Juan G., 2016. "Analysis of transportation networks subject to natural hazards – Insights from a Colombian case," Reliability Engineering and System Safety, Elsevier, vol. 152(C), pages 151-165.
    3. Reggiani, Aura & Nijkamp, Peter & Lanzi, Diego, 2015. "Transport resilience and vulnerability: The role of connectivity," Transportation Research Part A: Policy and Practice, Elsevier, vol. 81(C), pages 4-15.
    4. Aura Reggiani, 2022. "The Architecture of Connectivity: A Key to Network Vulnerability, Complexity and Resilience," Networks and Spatial Economics, Springer, vol. 22(3), pages 415-437, September.

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