Influence of Heavy Vehicles on Traffic Flow in Freeway Work Zones

The proportion of heavy vehicles is very high on Chinese highways. Slowly moving heavy vehicles cause additional delay in a work zone especially when there is only one open lane in the work zone. In this paper, we study traffic delay in a work zone considering the influence of heavy vehicles. We found that there are four key factors contributing to the delay of non heavy vehicles; that the marginal influence of heavy vehicles is constant when heavy vehicles do not interact, decreases when heavy vehicles interact; and that the influence of the work zone's length decreases when the proportion of heavy vehicles is high.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Qiang, Fu
  • HangFei, Lin
  • XiaoHong, Chen
  • Ye, Li
• Conference:
  • Transportation Research Board 86th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2007-1-21 to 2007-1-25
• Date: 2007

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; Photos; References;
• Pagination: 8p
• Monograph Title: TRB 86th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

• TRT Terms: Heavy vehicles; Lane closure; Operations; Slow moving vehicles; Traffic control; Traffic delays; Traffic flow; Work zone safety; Work zone traffic control; Work zones
• Subject Areas: Administration and Management; Highways; Operations and Traffic Management; Planning and Forecasting; Safety and Human Factors; I72: Traffic and Transport Planning; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 01049636
• Record Type: Publication
• Report/Paper Numbers: 07-1047
• Files: TRIS, TRB
• Created Date: May 21 2007 1:18PM