Field Implementation of Direction Rumble Strips for Deterring Wrong-Way Entries

Drivers who make wrong-way (WW) entries onto freeways pose a serious risk to the safety of right-way (RW) motorists and themselves. The previous project, “Directional Rumble Strips for Reducing Wrong-Way-Driving (WWD) Freeway Entries,” developed and tested directional rumble strip (DRS) patterns to address this safety issue. WW drivers are expected to perceive elevated sound and vibrations while RW drivers will slow down by DRS. Three patterns were recommended for field evaluation. Southbound off-ramps on I-65 were selected for implementation based on a mathematical model and numerous WWD incidents observed in the field. Speed and video data were collected using cameras and magnetic sensors. Field driving test was conducted to collect sound and vibration data at various speed categories for both RW and WW directions. Time series and spectrum analysis were used in analyzing sound and vibrations. Before-and-after studies were conducted to evaluate patterns based on drivers’ speeds, behavior, and WWD incidents. Results showed that DRS can reduce the average vehicle speed for RW drivers. The standard deviations of RW speeds were also lowered by the patterns. The number of WWD incidents and WWD distances significantly dropped after implementing all DRS.

Language

  • English

Project

  • Status: Active
  • Funding: $88937
  • Contract Numbers:

    DTRT13-G-UTC35

    CTS-2018071

  • Sponsor Organizations:

    Research and Innovative Technology Administration

    University Transportation Center Program
    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
  • Project Managers:

    Stearns, Amy

  • Performing Organizations:

    Southern Illinois University, Edwardsville

    Department of Civil Engineering
    Campux Box 1800 Building, Room 2056
    Edwardsville, IL  United States  62026-1800
  • Principal Investigators:

    Luo, Albert

  • Start Date: 20180427
  • Expected Completion Date: 20190731
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01668388
  • Record Type: Research project
  • Source Agency: Roadway Safety Institute
  • Contract Numbers: DTRT13-G-UTC35, CTS-2018071
  • Files: UTC, RiP
  • Created Date: May 2 2018 3:28PM