Total Approach Capacity at Signalized Intersections with Shared and Short Lanes: Generalized Model Based on a Simulation Study

An empirically calibrated theoretical model is presented for the estimation of total approach capacity at signalized intersections with shared and short lanes. The model extends the theoretical capacity formula for shared and short lanes at unsignalized intersections (previously introduced by the author) to signalized intersections. The model accounts for the stochastic nature of traffic flow and the effect of queue blockage on the short turn lanes. The VisSim simulation package was used to generate a comprehensive database for model calibration under different lane and signal-control conditions. The proposed model can be used for arbitrary lane and signal-timing configurations. Explicit equations are given for signalized intersections with simple shared- and short-lane configurations. Detailed monographs are prepared for practical applications.

• Record URL:
  https://doi.org/10.3141/2027-03
• 
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=Total+Approach+Capacity+at+Signalized+Intersections+with+Shared+and+Short+Lanes%3a+Generalized+Model+Based+on+a+Simulation+Study&author=N.+Wu&publication_year=2007
• Availability:
  • Find a library where document is available. Order URL: http://www.trb.org/Main/Public/Blurbs/159708.aspx
• Authors:
  • Wu, Ning
• Publication Date: 2007

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 19-26
• Monograph Title: Highway Capacity and Quality of Service 2007
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 2027
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Highway capacity; Mathematical models; Signalized intersections; Stochastic processes; Traffic flow; Traffic queuing; Traffic simulation; Turning lanes
• Identifier Terms: VISSIM (Computer model)
• Uncontrolled Terms: Intersection approaches; Shared left turn and through lane; Shared-use lanes
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; I71: Traffic Theory; I73: Traffic Control;

Filing Info

• Accession Number: 01050069
• Record Type: Publication
• ISBN: 9780309104548
• Files: TRIS, TRB, ATRI
• Created Date: Feb 8 2007 4:42PM