Macroscopic Arc Performance Models For Within-Day Dynamic Traffic Assignment
نویسندگان
چکیده
The network travel time pattern plays a double role in within-day dynamic traffic assignment: on one side, it constitutes the main attribute in the context of users’ path choice; on the other side, it determines the arc flow pattern for given path choices. Then, it is important that in the supply model realistic arc performances are yielded for given arc inflows. On the other hand, the arc performance model has to be efficient in order to be employed in within-day dynamic traffic assignment, which is a complex problem of its own. In this paper, we present a new link-based macroscopic arc performance model with capacity constraints capable of taking implicitly into account the variability of the flow state along the arc accordingly to any fundamental diagram. Then we compare it, in terms of realism and efficiency, with three existing models, which have been to this end suitably modified and enhanced. Guido Gentile, Lorenzo Meschini, Natale Papola 3
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