Capacity and Cost Benefits of Super 2 Corridors

Based on 2004 traffic volumes, supporting background information for TxDOT Research Project 0-6135, "Super 2 Design for Higher Traffic Volumes," indicated that there are over 4,200 miles of two-lane rural highway on the state highway system that have average daily traffic counts (ADTs) greater than 5,000. Given the increase in statewide traffic since that time, the number of two-lane highway segments with high ADTs has increased further, providing additional candidates for sites that would benefit from Super 2 installations. This project will test that the use of a Super 2 treatment on a two-lane rural highway with high ADT provides capacity benefits approaching those of a four-lane alignment, but at greatly reduced costs.


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  • Status: Completed
  • Funding: $299972
  • Contract Numbers:


  • Sponsor Organizations:

    Texas Department of Transportation

    125 E. 11th Street
    Austin, TX  United States  78701-2483
  • Project Managers:

    Odell, Wade

  • Performing Organizations:

    Texas A&M Transportation Institute, College Station

    Texas A&M University System
    3135 TAMU
    College Station, TX  United States  77843-3135
  • Principal Investigators:

    Brewer, Marcus

  • Start Date: 20180901
  • Expected Completion Date: 20200831
  • Actual Completion Date: 20200831

Subject/Index Terms

Filing Info

  • Accession Number: 01690750
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 0-6997
  • Files: RIP, STATEDOT
  • Created Date: Jan 11 2019 3:23PM