Curve Advisory Speed and Curve Safety Assessment Practices: Training Development and Support

The Texas Department of Transportation’s (TxDOT’s) engineering study methods for setting curve advisory speeds were recently updated to extend the guidance to more types of rural highways (e.g., four-lane highways and freeways). Additionally, the software suite used to implement the Global Positioning System (GPS)-based engineering study method for setting advisory speeds was updated to accommodate four-lane rural highways and add technical capabilities, such as the ability to process multiple curves with a single data collection run and to add the capability to measure vertical grade. These resources facilitate the goal to check and update Texas’s curve advisory speeds. The researchers developed training workshop and webinar materials to assist TxDOT practitioners in their application of these new resources. The researchers presented these workshops and the webinar to TxDOT practitioners who are responsible for traffic operations and for signing and marking rural highways. The researchers also provided technical support and guidance for the software suite, which consists of the executable Texas Roadway Analysis and Measurement Software (TRAMS) program and the spreadsheetbased Texas Curve Evaluation Suite (TCES) program.

• Record URL:
  https://static.tti.tamu.edu/tti.tamu.edu/documents/5-6960-01-R1.pdf
• 
• Summary URL:
  https://static.tti.tamu.edu/tti.tamu.edu/documents/5-6960-01-PSR.pdf
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/66267
• Corporate Authors:

  Texas A&M Transportation Institute

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

  Texas Department of Transportation

  Research and Technology Implementation Office
  125 E 11th Street
  Austin, TX  United States  78701-2483

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Pratt, Michael P
  • Geedipally, Srinivas R
  • Le, Minh
• Publication Date: 2021-6

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Technical Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 56p

Subject/Index Terms

• TRT Terms: Highway curves; Rural highways; Software; Speed limits; Traffic signs; Training
• Geographic Terms: Texas
• Subject Areas: Education and Training; Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 01778822
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-20/5-6960-01-R1, 5-6960-01-R1
• Contract Numbers: 5-6960-01
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Aug 9 2021 9:44AM