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Freeway traffic incident reconstruction – A bi-parameter approach

Azita Dabiri (Institutionen för signaler och system, Reglerteknik) ; Balazs Kulcsar (Institutionen för signaler och system, Reglerteknik)
Transportation Research Part C: Emerging Technologies (0968-090X). Vol. 58 (2015), p. 585-597.
[Artikel, refereegranskad vetenskaplig]

The paper suggests a novel alternative to generalized traffic incident descriptions within the macroscopic traffic model framework. The contribution of the paper is twofold. First, by extending already existing second order macroscopic conservation laws to characterize off-nominal traffic conditions, we define two main incident parameters such as direct and indirect ones. Physical interpretations of this incident parametrization is provided. These incident indicators are relative in view of the nominal traffic flow model parameters and carries physically meaningful macroscopic content. Second, the paper proposes to use a constrained and nonlinear, joint traffic state- and incident parameter reconstruction method and validates the suggested modeling idea via real traffic measurements fitting. Evaluation of the numerical results demonstrate the effectiveness of the methodology.

Nyckelord: Freeway traffic modeling, Second order traffic flow models, Traffic incidents, Moving horizon algorithm, Direct and indirect incident parameters

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Denna post skapades 2015-04-29. Senast ändrad 2015-10-29.
CPL Pubid: 216057


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Institutioner (Chalmers)

Institutionen för signaler och system, Reglerteknik


Transportteknik och logistik

Chalmers infrastruktur

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