Evaluation of Ultra-Wideband Radio for Improved Pedestrian Safety at Signalized Intersections

As America’s population continues to age, the number of pedestrians with mobility or vision disabilities will increase. The focus of this project was to evaluate ultra-wideband (UWB) radio signaling for the purpose of tracking individuals as they cross an intersection. Working with products from DecaWave, the authors conducted multiple tests on a test course. Under ideal conditions they were able to achieve a positioning accuracy of approximately +/- 15 cm, not quite as good as the +/- 10-cm accuracy reported by the manufacturer. One possible explanation is the generic antennas supplied with the development kits and, in particular, their proximity to the human body and earth ground. Both cases resulted in signal absorption, leading to degradation in positioning accuracy. Future work would involve the development of antennas tuned to the application and less susceptible to signal loss. If that work was successful, additional software development would be required to exchange positioning information between the pedestrian “tag” and a traffic controller via UWB.

  • Record URL:
  • Record URL:
  • Corporate Authors:

    Pacific Northwest Transportation Consortium

    University of Washington
    More Hall Room 112
    Seattle, WA  United States  98195-2700

    University Transportation Center Region 10

    More Hall 112
    Box 352700
    Seattle, WA  United States  98195

    Research and Innovative Technology Administration

    Department of Transportation
    1200 New Jersey Avneue, SE
    Washington, DC  United States  20590

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Authors:
    • Frenzel, James F
  • Publication Date: 2016-12-30


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Figures; References;
  • Pagination: 31p

Subject/Index Terms

Filing Info

  • Accession Number: 01675300
  • Record Type: Publication
  • Contract Numbers: DTRT13-G-UTC40
  • Created Date: Jul 5 2018 11:00AM