MODELING TRAFFIC FLOWS THROUGH A MODERN ROUNDABOUT BASED ON VIDEO DATA

In 1997, the City of Manhattan installed the first modern roundabout in the state of Kansas. Field study of the operation of the roundabout has been conducted by a Kansas State University research team. Comparison to comparable traffic flows at stop controlled intersections have been made. Using the measured field conditions as a starting point, the SIDRA computer model was used to evaluate a range of traffic conditions. Field traffic conditions and measured delays were used to check output from the models and assist in model validation. SIDRA was used to replicate field conditions to test the projected roundabout operation at increasing traffic levels. The model results of the roundabout and other intersection traffic control are compared. The comparison yields information usable by other jurisdictions when evaluating the installation of new intersection controls versus a roundabout. The methodology should be valuable to any community desiring to consider roundabouts as a viable, cost-effective intersection traffic control device.

• Supplemental Notes:
  • The proceedings can be located on-line at www.ctre.iastate.edu/.
• Corporate Authors:

  Iowa State University, Ames

  Center for Transportation Research and Education, 2711 South Loop Drive
  Ames, IA  United States  50011-8664
• Authors:
  • LUTTRELL, G
  • Russell, E R
  • Rys, M
• Conference:
  • Mid-Continent Transportation Symposium 2000
  • Location: Ames, Iowa
  • Date: 2000-5-15 to 2000-5-16
• Publication Date: 2000

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 193-198

Subject/Index Terms

• TRT Terms: Alternatives analysis; Computer models; Field studies; Highway capacity; Intersections; Roundabouts; Traffic control; Traffic flow; Video cameras
• Identifier Terms: SIDRA (Computer program)
• Geographic Terms: Manhattan (Kansas)
• Subject Areas: Design; Highways; Operations and Traffic Management; Planning and Forecasting; I21: Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00793297
• Record Type: Publication
• ISBN: 0965231046
• Files: TRIS
• Created Date: May 26 2000 12:00AM