Develop a Real-time Decision Support Tool for Urban Roadway Safety Improvement

Due to the complex nature of urban roadways, conventional crash prediction models are limited as these models omit operating speed, short-duration volume, and weather data. To mitigate this research gap, the following three national databases can be utilized: (1) National Performance Management Research Data Set (NPMRDS) with passenger and freight speed data, (2) Travel Monitoring Analysis System (TMAS) data with both temporary traffic counting and continuous traffic counting programs, and (3) real-time weather data from the National Oceanic and Atmospheric Administration (NOAA). The fatality rate on Texas roadways for 2020 was 1.50 deaths per hundred million vehicle miles traveled, which is an 18.94% increase from 1.26 in 2019. From 2011 to 2020, the fatalities on rural roadways increased by 19%, and this increase on urban roadways is disproportionately high (31%). Research and a supporting decision support tool are necessary to improve urban safety. The research teams will leverage ongoing staff leadership and engagement in several national and state Department of Transportation (DOT) speed-safety projects. The research teams will provide updated safety performance functions (SPFs) for urban roadways and a real-time decision support tool on risk scoring with the applicability of new data input and model updating pipeline.


  • English


  • Status: Active
  • Funding: $465010
  • Contract Numbers:


  • Sponsor Organizations:

    Texas Department of Transportation

    11th and Brazos Streets
    Austin, TX  United States  78701
  • Managing Organizations:

    Texas Department of Transportation

    11th and Brazos Streets
    Austin, TX  United States  78701
  • Project Managers:

    Kasberg, Katelyn

  • Performing Organizations:

    Texas State University, San Marcos

    JCK Building, Suite 489
    San Marcos, TX  United States 

    Texas Transportation Institute

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

    Das, Subasish

  • Start Date: 20230109
  • Expected Completion Date: 20250630
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01875322
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 0-7144
  • Files: RIP, STATEDOT
  • Created Date: Mar 9 2023 2:09PM