TESTING OF DYNAMIC MODELS FOR SIGNAL CONTROLLED INTERSECTIONS

Three continuum traffic models and the simple input-output one are implemented at a signalized intersection and tested against limited data collected by time lapse photography. A comparative performance evaluation is made based on estimations of the queue length, the effective queue size and interrupted total travel time. These estimates are obtained from initial and boundary conditions measured in short time increments at each end of the link under consideration. The test results indicate that the continuum models are more effective in estimating the above state variables and measure of effectiveness. A simple statistical adjustment suggests that the least sophisticated continium model performs consistently better than any other alternative. The findings of this study can only be tentative due to the limitations of the data base. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01912615
• Corporate Authors:

  Pergamon Press, Incorporated

  Headington Hill Hall
  Oxford OX30BW,    
• Authors:
  • Beskos, D E
  • Okutani, I
  • Michalopoulos, P
• Publication Date: 1984

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 397-408
• Serial:
  • Transportation Research Part B: Methodological
  • Volume: 18B
  • Issue Number: 4/5
  • Publisher: Elsevier
  • ISSN: 0191-2615
  • Serial URL: http://www.sciencedirect.com/science/journal/01912615

Subject/Index Terms

• TRT Terms: Accuracy; Economic efficiency; Intersections; Length; Mathematical models; Measures of effectiveness; Queuing; Signalized intersections; Tests; Time lapse photography; Traffic signals; Traffic simulation; Traffic surveys; Travel time; Trip length
• Uncontrolled Terms: Efficiency
• ITRD Terms: 5911: Efficiency; 697: Journey time; 455: Junction; 6488: Length; 6473: Mathematical model; 6594: Queue; 6255: Test; 565: Traffic signal
• Subject Areas: Economics; Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00396611
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Sep 30 1985 12:00AM