TRAFFIC CAPACITY THROUGH WORK ZONES ON URBAN FREEWAYS

The report summarizes findings of capcity studies conducted at urban freeway maintenance and construction work zones in Houston and Dallas. Studies were conducted on 5-, 4-, and 3-lane freeway sections. The results indicate that the per lane capacities are affected by the number of lanes open during the roadwork. For example, the average capacity on a 3-lane section with 2 lanes open was 1500 vphpl; while the average capacity with 1 lane open was only 1130 vphpl. The report also illustrates how the data can be used to estimate the effects of the lane closures in terms of queue length, and thus can be applied to work scheduling.

• Record URL:
  • https://library.ctr.utexas.edu/hostedpdfs/tti/228-6.pdf
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/85681
• Supplemental Notes:
  • Sponsored in part by Texas State Dept. of Highways and Public Transportation, Austin. Transportation Planning Div.
• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011

  Texas State Department of Highways & Public Transportation

  Transportation Planning Division, P.O. Box 5051
  Austin, TX  United States  78763

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Dudek, C L
  • Richards, S H
• Publication Date: 1981-4

Media Info

• Media Type: Digital/other
• Pagination: 34 p.

Subject/Index Terms

• TRT Terms: Construction; Freeways; Highway capacity; Highway maintenance; Lane closure; Length; Maintenance; Maintenance management; Queuing; Roads; Scheduling; Traffic control; Urban areas; Urban highways; Work zone traffic control
• Old TRIS Terms: Lane closing
• Subject Areas: Construction; Highways; Maintenance and Preservation; Operations and Traffic Management; I61: Equipment and Maintenance Methods; I71: Traffic Theory;

Filing Info

• Accession Number: 00364811
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: TTI-2-18-78-228-6 Res. Rpt., FHWA/TX-81/28-228-6
• Files: NTIS, NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Apr 28 1982 12:00AM