Determining Louisiana’s Roundabout Capacity

The primary objective of this project is to use local data to determine Louisiana’s roundabout capacity and compare to software outcomes which are currently being used in the planning and design of modern roundabout in Louisiana. Specifically, the main objectives are to conduct a literature review on the roundabout capacity models as presented in the Highway Capacity Manual (HCM) 2010 and HCM 6, highlighting differences and similarities and comparing to Sidra capacity estimation methods, select candidate sites for local data collection to be used for parameter estimation, compare parameters obtained from site observations to HCM 2010, HCM 6, and Sidra outputs, and make a recommendation on best practices to be followed in determining parameters that best reflect local driver behavior.

Project

• Status: Active
• Funding: $113811
• Contract Numbers:

  19-2SS

  1000282

• Sponsor Organizations:

  Federal Highway Administration

  5304 Flanders Drive, Suite A
  Baton Rouge, LA  United States  70808
• Managing Organizations:

  Louisiana Department of Transportation

  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:

  Louisiana Transportation Research Center

  4101 Gourrier Avenue
  Baton Rouge, LA  United States  70808
• Principal Investigators:

  Codjoe, Julius

• Start Date: 20190101
• Expected Completion Date: 20200630
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Estimating; Highway capacity; Literature reviews; Recommendations; Roundabouts
• Identifier Terms: Highway Capacity Manual
• Geographic Terms: Louisiana
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 01688092
• Record Type: Research project
• Source Agency: Louisiana Transportation Research Center
• Contract Numbers: 19-2SS, 1000282
• Files: RIP, STATEDOT
• Created Date: Dec 12 2018 10:53AM