Macroscopic intersection modelling in simulation-based dynamic network loading

Node models for macroscopic simulation have attracted relatively little attention in literature. Nevertheless, in dynamic network loading (DNL) models for congested road networks, node models are as important as the extensively studied link models. A formulation defining a generic class of first order macroscopic node models is presented, satisfying a list of requirements necessary to produce node models with realistic, consistent results. Defining a specific node model instance of this class requires the specification of a supply constraint interaction rule and (optionally) node supply constraints. Following, specific macroscopic node model instances for unsignalized and signalized intersections are proposed.