Special report - Transportation Research Board, National Research Council · 1975 · 13 citations · 5 references
AeroacousticsEngineeringStabilityOperations ResearchControl PolicyStatistical Signal ProcessingSystems EngineeringTransportation EngineeringBetter UseFlow Control (Data)Traffic Signal ControlSignal ProcessingIntersection OversaturationAerospace EngineeringNetwork Traffic ControlFlow MeasurementNew Control PolicyCongestion ControlRoad Traffic ControlTraffic Management
A measure of oversaturation is developed and validated with field data. A control policy for oversaturated intersections is developed. The results of this work have applicability wherever intersection oversaturation is frequently experienced. The primary objective of this control policy is to delay or eliminate intersection blockage, which is the outgrowth of oversaturation. The control policy developed in this paper (queue-actuated control) is of a tactical nature. It responds to quenues (maximum queues allowed at both approaches of an intersection) similar to the way in which the current traffic-actuated control responds to demand. The new control policy can be applied to isolated intersections as well as to coordinated ones. The specific aspects addressed are field validation of the new measure of oversaturation, development of a delay model for queue-actuated control, and effects of queue-actuated control on adjacent intersections. Validation of the delay model and evaluation of quene-actuated control in alleviating the problems of oversaturation are performed with the UTCS-1 simulator.
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