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Specification of conditions of transport jams occurrence in networks with traffic light control

Abstract

Specification of conditions of transport jams occurrence in networks with traffic light control

Orlov N.A.

Incoming article date: 26.03.2015

In article process of vehicles queue formation before an adjustable intersection is considered. Classical models of delay and queue assume, that all vehicles arriving to intersection take places on a stop line. If in free conditions of movement the given assumption is comprehensible, in the conditions of the saturated movement the account of existential distribution of queue is required. For this purpose the description of queues dynamics is added by variables of queues front position and queues departure front position. Under concept the front of queue is understood position of last car in queue, and as departure front - position of the car beginning movement at travel of queue. Analytical dependences for calculation of values of the specified variables are resulted, both at constant arrival of vehicles, and at any cyclic profile of flow. Conditions of transport links blocking with the account of the entered variables are specified.

Keywords: Delay, length of queue, transport links, blocking, traffic light control, front of queue, front of queues departure