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Road network unreliability: impact assessment and mitigation

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  • A.J. Nicholson

Abstract

Road transport network reliability has recently become important, with the increasing emphasis on 'just-in-time' production methods and reducing the impacts of natural disasters (e.g., earthquakes, tsunamis). This has led to increased efforts to mitigate the impacts of disruption of road transport networks, and the inclusion of changes in network reliability in economic appraisals of road network improvement proposals. This paper discusses the sources of unreliability, and the relative merits of alternative measures of reliability and models for predicting reliability. Methods for assessing and mitigating the impacts of degradation of inter-urban and urban road networks, and for estimating the economic value of reducing travel time unpredictability, are described. The paper also outlines research into the resilience of road networks and the users/organisations which rely upon them. The paper focuses on fundamental issues and methodological problems, and concludes that several such issues and problems are yet to be resolved.

Suggested Citation

  • A.J. Nicholson, 2007. "Road network unreliability: impact assessment and mitigation," International Journal of Critical Infrastructures, Inderscience Enterprises Ltd, vol. 3(3/4), pages 346-375.
    • Handle: RePEc:ids:ijcist:v:3:y:2007:i:3/4:p:346-375
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    Cited by:

    1. Adrian Barchański & Renata Żochowska & Marcin Jacek Kłos, 2022. "A Method for the Identification of Critical Interstop Sections in Terms of Introducing Electric Buses in Public Transport," Energies, MDPI, vol. 15(20), pages 1-37, October.
    2. Nicholson, Alan, 2015. "Travel time reliability benefits: Allowing for correlation," Research in Transportation Economics, Elsevier, vol. 49(C), pages 14-21.
    3. Gonçalves, L.A.P.J. & Ribeiro, P.J.G., 2020. "Resilience of urban transportation systems. Concept, characteristics, and methods," Journal of Transport Geography, Elsevier, vol. 85(C).
    4. Ghavami, Seyed Morsal, 2019. "Multi-criteria spatial decision support system for identifying strategic roads in disaster situations," International Journal of Critical Infrastructure Protection, Elsevier, vol. 24(C), pages 23-36.
    5. Yifan Yang & S. Thomas Ng & Frank J. Xu & Martin Skitmore & Shenghua Zhou, 2019. "Towards Resilient Civil Infrastructure Asset Management: An Information Elicitation and Analytical Framework," Sustainability, MDPI, vol. 11(16), pages 1-24, August.

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