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Dynamic pedestrian traffic assignment with link transmission model for bidirectional sidewalk networks.
- Source :
-
Transportation Research Part C: Emerging Technologies . Dec2022, Vol. 145, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- Planning assessment of urban walking infrastructure requires appropriate modeling methodologies that capture the time-dependent and unique microscopic characteristics of bidirectional pedestrian streams. In this paper, we develop a simulation-based dynamic pedestrian traffic assignment (DPTA) model specifically formulated for walking networks (e.g. sidewalks) with bidirectional links. The model consists of a dynamic user equilibrium (DUE) based walking route choice and a link transmission model (LTM) for network loading. The formulated DUE adopts a pedestrian volume delay function (pVDF) taking into account the properties of bidirectional pedestrian streams such as self-organization. The adopted LTM uses a three-dimensional triangular bidirectional fundamental diagram as well as a generalized first-order node model. The applicability and validity of the model is demonstrated in hypothetical small networks as well as a real-world large-scale network of sidewalks in Sydney. The model successfully replicates formation and propagation of shockwaves in walking corridors and networks due to bidirectional effects. • A simulation-based dynamic pedestrian traffic assignment (DPTA) model is proposed. • The model adopts a bidirectional pedestrian volume-delay function (pVDF). • The model adopts the link transmission model with a three-dimensional fundamental diagram. • The model is applied to a large-scale network of sidewalks in Sydney. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0968090X
- Volume :
- 145
- Database :
- Academic Search Index
- Journal :
- Transportation Research Part C: Emerging Technologies
- Publication Type :
- Academic Journal
- Accession number :
- 161018278
- Full Text :
- https://doi.org/10.1016/j.trc.2022.103930