QUEUING AT UNSIGNALIZED INTERSECTIONS

A general queueing theory model for traffic flow at unsignalized inter sections is described and analysed which contains most of the mathemat ical models developed in the literature as special cases. Thus a consi stent approach is presented for obtaining these models from a general viewpoint. Included are green-red models which are based on an analogy to traffic signals. Critical gaps and merging times or move-up times are allowed to be stochastically dependent. Inconsistent and consisten t driver behaviour is considered. Platooning of the major road traffic with random intra-bunch headways is included. The results focus on th e distributions of queue lengths and delays and, in particular, on cap acities. A general capacity formula is developed and it is shown how t he various capacity formulas from the literature come out as special c ases. Some numerical results are presented. (C) 1997 Elsevier Science Ltd.