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Study on the Distribution of the Suburban Expressway Hourly Traffic Volume and Modification of the Design Hourly Volume under the Background of the Tourism Economy—Analysis on Design Factors of Normalized Congestion in Suburban Expressway

Author

Listed:
  • Fangchen Ma

    (College of Highway, Chang’an University, Xi’an 710064, China)

  • Jinliang Xu

    (College of Highway, Chang’an University, Xi’an 710064, China)

  • Chao Gao

    (College of Highway, Chang’an University, Xi’an 710064, China)

  • Yufeng Bi

    (Shandong Provincial Communication Planning and Design Institute Group Co. Ltd., SHANDONG HI-SPEED Group, Jinan 250000, China)

Abstract

An unreasonable design hourly volume (DHV) greatly impacts road facility construction costs and traffic efficiency. With the rapid rise in the tourism economy and widespread emergence of holiday travel characteristics in China, DHV applicability for suburban expressways requires verification. This study collected annual traffic volume data over 8760 h along Xi’an Ring Expressway from 2017 to 2019. Traffic demand distribution patterns throughout the year and peak hours were analyzed on the basis of the descending order of the obtained hourly traffic volume (HV) and factor data. HV distribution characteristics, 30th highest hourly volume (30 HV) typicality, and DHV factor applicability were investigated. Due to travel characteristics under the background of the tourism economy, the peak HV distribution exhibits polarization characteristics. The recommended value of the design hour traffic factor in the specification corresponded to a number of hours greater than 200, with the 30 HV factor under the background of the tourism economy being 25% higher than the recommended value. Considering the tourism economy, the high level of traffic operation time increased significantly, and the characteristics of a sharp decline in the peak HV disappeared. The 30 HV factor no longer exhibited traditional characteristics. The design causes of traffic congestion are identified herein.

Suggested Citation

  • Fangchen Ma & Jinliang Xu & Chao Gao & Yufeng Bi, 2022. "Study on the Distribution of the Suburban Expressway Hourly Traffic Volume and Modification of the Design Hourly Volume under the Background of the Tourism Economy—Analysis on Design Factors of Normal," Sustainability, MDPI, vol. 14(17), pages 1-15, August.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:17:p:10775-:d:901037
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    References listed on IDEAS

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    1. Jucheol Moon & Jin Gi Hong & Tae-Won Park, 2022. "A Novel Method for Traffic Estimation and Air Quality Assessment in California," Sustainability, MDPI, vol. 14(15), pages 1-12, July.
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