Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS C
Volume 28, Issue 7, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0129183117500863
Keywords
Traffic flow; lattice model; driver's memory; nonlinear analysis
Funding
- National Natural Science Foundation of China [61134004, 61673352]
- Zhejiang Province National Science Foundation [LY12A010 09, LY12A01010]
- Scientific Research Fund of Zhejiang Provincial Education Department [Y201328023]
- Zhejiang Ocean Electronic Technology Innovation Team [2013TD14]
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In order to investigate the effect of driver's memory during a period of time upon traffic dynamics, an extended lattice hydrodynamic model for traffic flow is proposed and studied analytically and numerically in this paper. The linear stability analysis reveals that the time length of driver's memory has an important effect on stability of traffic flow. The factor will lead to the occurrence of traffic congestion. Three typical nonlinear wave equations including Burgers, Korteweg-de Vries and modified Korteweg-de Vries equation are derived to describe the evolution of density wave for traffic flow in three different regions, which are stable, meta-stable and unstable region, respectively. The simulations are given to illustrate and clarify the analytical results. The results indicate that the time length of driver's memory has a negative effect upon stability of traffic flow.
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