A schedule-based assignment model with explicit capacity constraints for congested transit networks
Document Type
Journal Article
Publication Date
2011
Subject Area
operations - capacity, operations - scheduling, place - europe, operations - crowding
Keywords
Transit networks, Schedule-based, Dynamic assignment, Congestion, Capacity constraints
Abstract
This paper presents a schedule-based dynamic assignment model for transit networks, which takes into account congestion through explicit vehicle capacity constraints. The core of this assignment model is the use of a joint choice model for departure times, stops and runs that defines a space-time path in which users decide to leave at a given time, to access the network at a given stop and to board a given run to reach their destination. The assignment model is defined through a dynamic process approach in which the within-day network loading procedure allocates users on each transit run according to user choice and to the residual capacity of vehicles arriving at stops. The proposed model, albeit general, is specified for frequent users, who constitute a particularly congestion-sensitive class of users. Finally, an application to a real-size test network (part of the Naples transit network in southern Italy) is illustrated in order to test the proposed approach and show the ability of the modelling framework to assess congestion effects on transit networks.
Rights
Permission to publish the abstract has been given by Elsevier, copyright remains with them.
Recommended Citation
Nuzzolo, A., Crisalli, U., & Rosati, L. (2011). A schedule-based assignment model with explicit capacity constraints for congested transit networks. Transportation Research Part C: Emerging Technologies, Article In Press, Corrected Proof.
Comments
Transportation Research Part C Home Page:
http://www.sciencedirect.com/science/journal/0968090X