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Safety Performance of High-Occupancy Vehicle (HOV) Facilities: Evaluation of HOV Lane Configurations in California

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  • Jang, Kitae
  • Chung, Koohong
  • Ragland, David R
  • Chan, Ching-Yao

Abstract

Collision data from High Occupancy Vehicle (HOV) facilities with two different types of access, continuous and limited, are examined in this paper. The findings show that HOV facilities with limited access offer no safety advantages over those with a continuous access. Compared with continuous access HOV lanes, a higher percentage of collisions was concentrated on limited access HOV lanes. Limited access HOV lanes also had higher collision rates. Findings from investigating the relationship between collision rates in HOV lanes with respect to shoulder width, length of access, and the proximity of access to its neighboring ramps are also documented. These findings provide enhanced understanding about the effects of geometric factors on the collision rates in HOV lanes.

Suggested Citation

  • Jang, Kitae & Chung, Koohong & Ragland, David R & Chan, Ching-Yao, 2009. "Safety Performance of High-Occupancy Vehicle (HOV) Facilities: Evaluation of HOV Lane Configurations in California," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt1cm7z3rd, Institute of Transportation Studies, UC Berkeley.
    • Handle: RePEc:cdl:itsrrp:qt1cm7z3rd
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    File URL: https://www.escholarship.org/uc/item/1cm7z3rd.pdf;origin=repeccitec
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    References listed on IDEAS

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    1. Wei‐Kei Shiue & Lee J. Bain, 1982. "Experiment Size and Power Comparisons for Two‐Sample Poisson Tests," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 31(2), pages 130-134, June.
    2. H. S. Sichel, 1973. "On a Significance Test for Two Poisson Variables," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 22(1), pages 50-58, March.
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    Cited by:

    1. Eui-Jin Kim & Oh Hoon Kwon & Shin Hyoung Park & Dong-Kyu Kim & Koohong Chung, 2021. "Application of naïve Bayesian approach in detecting reproducible fatal collision locations on freeway," PLOS ONE, Public Library of Science, vol. 16(5), pages 1-21, May.
    2. Shan, Xiaonian & Hao, Peng & Boriboonsomsin, Kanok & Wu, Guoyuan & Barth, Matthew & Chen, Xiaohong, 2018. "Partially limited access control design for special-use freeway lanes," Transportation Research Part A: Policy and Practice, Elsevier, vol. 118(C), pages 25-37.

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    Keywords

    Engineering; safeTREC;

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