Effect of upstream traffic signal on capacity of a downstream TWSC intersection

Kyte, Michael, Amin, Enas, & Troutbeck, Rodney J. (2014) Effect of upstream traffic signal on capacity of a downstream TWSC intersection. In Tian, Z. (Ed.) TRB 93rd Annual Meeting Compendium of Papers, Transportation Research Board (TRB), Washington, D.C.

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This paper investigates the platoon dispersion model that is part of the 2010 Highway Capacity Manual that is used for forecasting downstream traffic flows for analyzing both signalized and TWSC intersections. The paper focuses on the effect of platoon dispersion on the proportion of time blocked, the conflicting flow rate, and the capacity flow rate for the major street left turn movement at a TWSC intersection. The existing HCM 2010 methodology shows little effect on conflicting flow or capacity for various distances downstream from the signalized intersection. Two methods are suggested for computing the conflicting flow and capacity of minor stream movements at the TWSC intersection that have more desirable properties than the existing HCM method. Further, if the existing HCM method is retained, the results suggest that the upstream signals model be dropped from the HCM method for TWSC intersections.

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ID Code: 88629
Item Type: Conference Paper
Refereed: Yes
Divisions: Current > Research Centres > Centre for Accident Research & Road Safety - Qld (CARRS-Q)
Current > QUT Faculties and Divisions > Faculty of Health
Deposited On: 20 Oct 2015 04:01
Last Modified: 20 Oct 2015 04:01

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