Analyze Operational and Safety Improvements Associated with Implemented Innovative Intersections in Texas

Innovative intersection designs (e.g., diverging diamond interchanges (DDIs), displaced left turns (DLTs), median U-turns (MUTs), and restricted crossing U-turns (RCUTs)) and modern roundabouts are increasingly used in Texas and throughout the country to remove conflict points and redistribute turning traffic from traditional intersections, improving operational efficiency and promoting increased safety. While their use is growing and their benefits have been demonstrated, Texas still has a limited number of innovative intersections throughout the state. Because many of these intersection types and their design elements are not commonly used in Texas, there is a natural tendency to be cautious about their use. Providing information to help promote these treatments for use in appropriate locations will be important to their successful adoption and implementation. The research team will build on recent research to document the benefits of innovative intersections, develop case studies of successfully implemented intersections in Texas, and provide resources for practitioners to use in support of new implementation across the state.

• Record URL:
  • https://library.ctr.utexas.edu/Presto/project=0-7226

Language

• English

Project

• Status: Active
• Funding: $417931
• Contract Numbers:

  0-7226

• Sponsor Organizations:

  Texas Department of Transportation

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

  Schwerdt, Tom

• Performing Organizations:

  Texas A&M Transportation Institute

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

  Texas State University, San Marcos

  JCK Building, Suite 489
  San Marcos, TX  United States 
• Principal Investigators:

  Brewer, Marcus A

• Start Date: 20240901
• Expected Completion Date: 20260831
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Benefits; Diamond interchanges; Highway design; Innovation; Intersections; Restricted crossing U turn intersections; Roundabouts; Traffic safety
• Geographic Terms: Texas
• Subject Areas: Design; Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 01928242
• Record Type: Research project
• Source Agency: Texas Department of Transportation
• Contract Numbers: 0-7226
• Files: RIP, STATEDOT
• Created Date: Aug 23 2024 12:46PM