The objective of this study was the development of geometric design guidelines for suburban, high-speed curb and gutter roadways. Design elements that were addressed included design speed, alignment, cross section, drainage, driveways, and sight distance. Safety studies, operational studies and clear zone studies were conducted. Field data collection sites for the studies were selected from various areas throughout the state of Texas. The safety studies analyzed the safety effects of high-speed curb and gutter roadway sections through accident rates, accident severities, and accident characteristic frequencies. The operational studies included a study concerning shoulder requirements and two-way left-turn lane (TWLTL) requirements. The clear zone study was conducted to determine the most appropriate and cost-beneficial clear zone width requirements for suburban high-speed curb and gutter sections. The resultant guidelines were based on the input from a panel of experts and the results of several safety, operational, and computer simulation studies. They were prepared in a format such that they can be inserted into the current edition of the Texas Department of Transportation's Design Manual. The geometric design criteria for suburban highways were prepared in both English and metric units. Adoption of these guidelines should result in a consistent, safe and defensible set of geometric design guidelines for suburban high-speed curb and gutter roadways.

  • Supplemental Notes:
    • Research study title: Design Criteria for Suburban High-Speed Curb and Gutter Sections. Published August 1994; revised May 1995.
  • Corporate Authors:

    Texas Transportation Institute

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

    Texas Department of Transportation

    Research and Technology Transfer Office, P.O. Box 5051
    Austin, TX  United States  78763-5051

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Fambro, D B
    • Nowlin, R L
    • Warren, S P
    • Lienau, K A
    • Mounce, J M
    • Bligh, R P
    • Mak, K K
    • Ross, H E
  • Publication Date: 1995-5


  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 253 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00720302
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/TX-95/1347-1F, Res Rept 1347-1F, TTI: 0-1347
  • Contract Numbers: Study 0-1347
  • Created Date: Apr 26 1996 12:00AM