Costs and Effectiveness of Lower-Speed, Environmentally-Friendly Urban Highway Designs

Adding capacity to ameliorate urban road congestion is often thought to be infeasible due to its great expense. This proposal seeks to investigate differentiated design standards as a source of capacity additions that are more affordable and have smaller "footprints," thus smaller aesthetic and environmental impacts. The research will examine the tradeoff between providing capacity for high-speed off-peak travel, when peak travel is severely congested, versus providing more capacity but only for moderate-speed travel. It will also examine the potential savings in cost and footprint from designing certain roads to be for passenger vehicles only. Thus, the research will show under what conditions lower-speed, environmentally-friendly highway designs are cost-effective. The results will provide guidance for metropolitan transportation planning, in particular guidance concerning the emphasis given to different types of highways for handling anticipated traffic growth.


    • English


    • Status: Active
    • Sponsor Organizations:

      California Department of Transportation

      1227 O Street
      Sacramento, CA  United States  95843
    • Project Managers:

      Briseno, Coco

    • Performing Organizations:

      University of California Transportation Center (UCTC)

      University of California, Berkeley
      2614 Dwight Way, 2nd Floor
      Berkeley, CA  United States  94720-1782
    • Principal Investigators:

      Small, Kenneth

    • Start Date: 20070801
    • Expected Completion Date: 0
    • Actual Completion Date: 20080731
    • Source Data: RiP Project 15181

    Subject/Index Terms

    Filing Info

    • Accession Number: 01460125
    • Record Type: Research project
    • Source Agency: University of California Transportation Center (UCTC)
    • Files: UTC, RiP, STATEDOT
    • Created Date: Jan 3 2013 1:19PM