Relationship between traffic load and traffic flow characteristics: Application of weigh-in-motion (WIM) approach

Ying Wang, Qingjun He, Huizhao Tu, Xin Ruan, N. N. Sze

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

It is importance to examine the relationship between the traffic load and traffic flow characteristics for better understanding of traffic flow theory. However, related studies have been rare because of the difficulty in obtaining detailed traffic load data. Weigh-in-Motion (WIM) technology addresses the issue by generating comprehensive real-time synchronized traffic load and traffic flow data. This study examined the effects of traffic load on the traffic flow characteristics. In particular, traffic flow characteristics in the terms of speed, time headway and their distributions were diagnosed. Also, the sensitivity effects of vehicle composition and number of axle were investigated. Results indicated that no significant difference in time headway and vehicular speed between vehicle classes could be established. Except that the time headway and vehicular speed of two-axle vehicles were higher than that of the counterparts. Also, there was significant linear negative correlation between average traffic load and free-flow traffic speed.

Original languageEnglish
Title of host publicationTransport and Society - Proceeding of the 22nd International Conference of Hong Kong Society for Transportation Studies, HKSTS 2017
EditorsAnthony Chen, Tony N.N. Sze
PublisherHong Kong Society for Transportation Studies Limited
Pages267-273
Number of pages7
ISBN (Electronic)9789881581464
Publication statusPublished - 1 Jan 2017
Event22nd International Conference of Hong Kong Society for Transportation Studies: Transport and Society, HKSTS 2017 - Hong Kong, Hong Kong
Duration: 9 Dec 201711 Dec 2017

Publication series

NameTransport and Society - Proceeding of the 22nd International Conference of Hong Kong Society for Transportation Studies, HKSTS 2017

Conference

Conference22nd International Conference of Hong Kong Society for Transportation Studies: Transport and Society, HKSTS 2017
Country/TerritoryHong Kong
CityHong Kong
Period9/12/1711/12/17

Keywords

  • Traffic flow characteristics
  • Traffic load
  • Transport survey
  • Weight-in-Motion (WIM)

ASJC Scopus subject areas

  • Transportation

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