Constructing set-valued fundamental diagrams from jamiton solutions in second order traffic models

Benjamin Seibold, Morris R. Flynn, Aslan R. Kasimov, Rodolfo Ruben Rosales

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Fundamental diagrams of vehicular traiic ow are generally multivalued in the congested ow regime. We show that such set-valued fundamental diagrams can be constructed systematically from simple second order macroscopic traiic models, such as the classical Payne-Whitham model or the inhomogeneous Aw-Rascle-Zhang model. These second order models possess nonlinear traveling wave solutions, called jamitons, and the multi-valued parts in the fundamental diagram correspond precisely to jamiton-dominated solutions. This study shows that transitions from function-valued to set-valued parts in a fundamental diagram arise naturally in well-known second order models. As a particular consequence, these models intrinsically reproduce traiic phases.

Original languageEnglish
Pages (from-to)745-772
Number of pages28
JournalNetworks and Heterogeneous Media
Volume8
Issue number3
DOIs
Publication statusPublished - Sep 2013
Externally publishedYes

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