An ongoing Texas Transportation Institute study sponsored by the Texas State Department of Highways and Public Transportation shows that traffic congestion is worsening in most major U.S. cities except for those in Texas. A congestion index was developed last year for the seven largest Texas urban areas and 32 other areas across the nations. The index demonstrates trends that will have both short-term and long-term effects on how we get from point A to point B, and how much we pay to get there. The Roadway Congestion Index (RCI) considers daily vehicle-miles of travel and the number of miles of lanes of freeways and principal arterial streets in a given urban area. To determine the economic impact of traffic congestion, the costs of travel delay, excess fuel consumption, and higher auto insurance premiums were considered. The total cost of traffic congestions for the combined study area was estimated at $34 billion. The study has three important issues to raise, 1) roadway congestion in most major U.S. cities is getting worse and researchers now have a reliable method for measuring congestion; 2) economic impact of roadway congestion is significant, even when its costs is compared to the cost of constructing new transportation systems, and 3) the answer to this problem is far beyond the solution of more roadway construction and a mix of several solutions is need to fully address the problem. Some other solutions may be improvements in traffic operations, high-occupancy vehicle lanes, improvements in puilic transportation systems, changing daily commuter routines through flexible work schedules, and carpool incentives.

  • Availability:
  • Supplemental Notes:
    • Roadway Congestion in Major Urban Areas: 1982-1988.
  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  United States  76011
  • Publication Date: 1991-4

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 1-2
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00608045
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 31 1991 12:00AM