DEVELOPMENT OF PRELIMINARY CONGESTION IINDIIES FOR URBAN FREEWAYS IN TEXAS

Traffic congestion on urban freeways in Texas is a growing concern; freeways in each of the five largest cities in Texas experience some degree of connestion every weekday, yet no quantitative measure of freeway congestion has been developed. The report documents the results of an effort to develop a preliminary freeway congestion index. Elements of congestion are discussed, and measures of congestion which can be derived from available data are presented. Several candidate congestion indices are identified, and values for each are calculated and compared for ninteen selected freeways in five Texas cities. The study utilizes only readily available data; as a consequence, the results need to be viewed as preliminary, since data from a limited number of locations are used to describe an entire segment of roadway. Finally, recommendations are made of the best index to use for various applications.

• Supplemental Notes:
  • Report on Priority Use of Freeway Facilities
• Corporate Authors:

  Texas Transportation Institute

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

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • HOLDER, R W
  • Christiansen, D L
  • Fuhs, C A
• Publication Date: 1976-6

Media Info

• Pagination: 40 p.

Subject/Index Terms

• TRT Terms: Data collection; Freeways; Indexes (Information management); Networks; Roads; Traffic congestion; Transportation planning; Urban transportation
• Uncontrolled Terms: Road networks
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00318503
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: TTI-2-10-74-205-7 Intrm Rpt.
• Files: NTIS, TRIS, USDOT
• Created Date: Feb 6 1981 12:00AM