arXiv Open Access 1998

Origin of synchronized traffic flow on highways and its dynamic phase transitions

H. Y. Lee H. -W. Lee D. Kim

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Abstrak

We study the traffic flow on a highway with ramps through numerical simulations of a hydrodynamic traffic flow model. It is found that the presence of the external vehicle flux through ramps generates a new state of recurring humps (RH). This novel dynamic state is characterized by temporal oscillations of the vehicle density and velocity which are localized near ramps, and found to be the origin of the synchronized traffic flow reported recently [PRL 79, 4030 (1997)]. We also argue that the dynamic phase transitions between the free flow and the RH state can be interpreted as a subcritical Hopf bifurcation.

Topik & Kata Kunci

cond-mat.stat-mech

Penulis (3)

H. Y. Lee

H. -W. Lee

D. Kim

Format Sitasi

APA MLA BibTeX

Lee, H.Y., Lee, H.-., Kim, D. (1998). Origin of synchronized traffic flow on highways and its dynamic phase transitions. https://arxiv.org/abs/cond-mat/9805097

Akses Cepat

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Informasi Jurnal

Tahun Terbit: 1998
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓