Develop Heavy Duty Intersection Designs with High Performance Graded (HPG) Binder or Suitable Asphalt Mixtures

Current asphalt pavements with traditional asphalt mixes perform well under free flow traffic at regular speed. However, due to the nature of slow-moving or standing traffic, the same pavement structure with the same materials appears to severely rut at intersections. Ruts deeper than 2-inches were observed at multiple highway intersections, including those designed with premium mixes such as Stone-Matrix Asphalt, which result in serious safety concerns during wet weather conditions and costs millions of dollars annually to fix. Pavement designs specifically for slow-moving or standing traffic areas such as intersections, are rarely investigated. With the increasing frequency of extreme weather conditions and increase in truck traffic, there is an urgent need to develop long-lasting asphaltic pavement designs for intersections. The research team will coordinate with the Texas Department of Transportation (TxDOT) to develop heavy duty intersection designs for different traffic levels following the same format of the heavy-duty pavement guidelines (i.e. catalogue design approach), using the Texas Mechanistic-Empirical Asphalt Concrete Pavement Design and Analysis System (TxME) with suitable asphalt mixes and other layer materials designed with the reliable laboratory testing protocols. Furthermore, the research team will identify and construct up to three field test sections for Validation of the new heavy duty intersection design method.

• Record URL:
  • https://library.ctr.utexas.edu/Presto/project=0-7247

Language

• English

Project

• Status: Active
• Funding: $412,558.00
• Contract Numbers:

  0-7247

• Sponsor Organizations:

  Texas Department of Transportation

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

  Texas Department of Transportation

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

  Adediwura, Jade

• Performing Organizations:

  Texas Transportation Institute

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

  Zhou, Fujie

• Start Date: 20260101
• Expected Completion Date: 20280229
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Asphalt concrete pavements; Asphalt mixtures; Heavy vehicles; Intersections; Laboratory tests; Mechanistic-empirical pavement design; Rutting; Slow moving vehicles
• Subject Areas: Design; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01969905
• Record Type: Research project
• Source Agency: Texas Department of Transportation
• Contract Numbers: 0-7247
• Files: RIP, STATEDOT
• Created Date: Oct 28 2025 10:52AM