Develop Traffic Capacity Models for Mini-Roundabouts from Simulation

No capacity models for mini-roundabouts exist, other than from ARCADI, a United Kingdom (UK) model whose equations are unpublished. Based on VISSIM and using typical sizes of small size roundabouts, layouts and models will be developed to simulate at least two typical designs. The models will include effects of large vehicles and assumptions about driving behaviors. The objective is to simulate numerous traffic scenarios representative of all possible traffic volume conditions and estimate maximum throughput at one of the approaches. The maximum throughput data will be fitted in an exponential function as a function of circulating or conflicting volume, and percent of large vehicles.

• Supplemental Notes:
  • Program Information: Surface Transportation Research, Trans Ops Concepts and Analysis Team

Language

• English

Project

• Status: Completed
• Sponsor Organizations:

  Federal Highway Administration

  Turner-Fairbank Highway Research Center
  McLean, VA  United States  22101
• Project Managers:

  Lochrane, Taylor

• Performing Organizations:

  Federal Highway Administration

  Turner-Fairbank Highway Research Center
  McLean, VA  United States  22101
• Principal Investigators:

  Zhang, Wei

• Start Date: 20110531
• Expected Completion Date: 0
• Actual Completion Date: 20120330

Subject/Index Terms

• TRT Terms: Highway capacity; Highway design; Roundabouts; Through traffic; Traffic simulation; Traffic volume
• Identifier Terms: VISSIM (Computer model)
• Geographic Terms: United Kingdom
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting;

Filing Info

• Accession Number: 01574342
• Record Type: Research project
• Source Agency: Department of Transportation
• Files: RIP, USDOT
• Created Date: Aug 27 2015 4:05PM