Investigating Safety Impact of Centerline Rumble Strip, Lane Conversion, Roundabout and J-Turn Features on Louisiana Highways

The goal of this study is to evaluate a few relatively new crash countermeasures on Louisiana highways including the centerline rumble strip, lane conversion (four to three and additional analysis on four to five-lane), and the restrictive median opening on high speed corridors. Specifically, the objectives are to conduct before-and-after study and exploratory data analysis for centerline rumble-strips, the lane conversion, roundabout and the J-turn treatment (restricted median opening on highways in Louisiana and perform cost-benefit analysis for all investigated safety features.

  • Supplemental Notes:
    • Publication Pending


  • English


  • Status: Active
  • Funding: $129876.00
  • Contract Numbers:



  • Sponsor Organizations:

    Louisiana Department of Transportation and Development

    P.O. Box 94245
    1201 Capitol Access Road
    Baton Rouge, LA  United States  70804-9245

    Louisiana Transportation Research Center

    4101 Gourrier Avenue
    Baton Rouge, LA  United States  70808
  • Project Managers:

    Zeringue, Kirk

  • Performing Organizations:

    University of Louisiana at Lafayette

    104 University Circle
    Lafayette, LA  United States  70503
  • Principal Investigators:

    Sun, Xiaoduan

  • Start Date: 20150501
  • Expected Completion Date: 0
  • Actual Completion Date: 20170430
  • Source Data: RiP Project 39909

Subject/Index Terms

Filing Info

  • Accession Number: 01567078
  • Record Type: Research project
  • Source Agency: Louisiana Transportation Research Center
  • Contract Numbers: 15-3SA, 1000087
  • Files: RiP, STATEDOT
  • Created Date: Jun 24 2015 1:01AM