01050069

Component

https://doi.org/10.3141/2027-03

http://scholar.google.com....+Wu&publication_year=2007

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.

01089135

English

pp 19-26

2007

Transportation Research Record: Journal of the Transportation Research Board

9780309104548

Print

Figures (12) ; References (7) ; Tables (1)

Highway capacity; Mathematical models; Signalized intersections; Stochastic processes; Traffic flow; Traffic queuing; Traffic simulation; Turning lanes

VISSIM (Computer model)

Intersection approaches; Shared left turn and through lane; Shared-use lanes

Data and Information Technology; Highways; Operations and Traffic Management; I71: Traffic Theory; I73: Traffic Control

TRIS, TRB, ATRI

Feb 8 2007 4:42PM

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• Effect of Site and Population Characteristics on Freeway Bottleneck Capacity
• Errors in Analyses for Capacity and Timing Design of Signalized Intersections in Absence of Steady Queue Discharge Rates
• Estimating Truck Equivalencies for Freeway Sections
• Field Measurement of Approach Delay at Signalized Intersections Using Point Data
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• Implementing the Concept of Reliability for Highway Capacity Analysis
• Incorporation of Transportation User Perception into Evaluation of Service Quality of Signalized Intersections
• Probabilistic Analysis of "Highway Capacity Manual" Models: Case Study of a Signalized Intersection
• Relationship of Lane Width to Saturation Flow Rate on Urban and Suburban Signalized Intersection Approaches
• Travel Time Measurement Using Toll Infrastructure