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Travel Time Reliability Indices for Highway Users and Operators

In: Network Reliability in Practice

Author

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  • Hiroshi Wakabayashi

    (Meijo University)

Abstract

Travel time reliability is an emerging evaluation measure for highway network service. This chapter focuses on travel time reliability indices for a highway network, and compares several previously and newly proposed indices for both highway users and operators. This study requires a comparison study of travel time reliability between two existing routes and a newly opened route. Then since this comparative study requires travel time variation, the Multi-Hierarchical Stochastic (MHS) model for estimating travel time variation under uncertainty in demand and service is developed. Travel time reliability indices, including previously proposed indices, are calculated on the basis of the Cumulative Distribution Function (CDF). The results of a comparative study of 12 indices suggests that the combination of average travel time and an appropriate travel time reliability index are very important for both users and operators for reliably assessing the true route travel time.

Suggested Citation

  • Hiroshi Wakabayashi, 2012. "Travel Time Reliability Indices for Highway Users and Operators," Transportation Research, Economics and Policy, in: David M. Levinson & Henry X. Liu & Michael Bell (ed.), Network Reliability in Practice, edition 1, chapter 0, pages 79-95, Springer.
    • Handle: RePEc:spr:trachp:978-1-4614-0947-2_6
    DOI: 10.1007/978-1-4614-0947-2_6
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    Cited by:

    1. Nogal, Maria & Morales Nápoles, Oswaldo & O’Connor, Alan, 2019. "Structured expert judgement to understand the intrinsic vulnerability of traffic networks," Transportation Research Part A: Policy and Practice, Elsevier, vol. 127(C), pages 136-152.

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