Journal
CHINESE PHYSICS B
Volume 19, Issue 11, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/19/11/110503
Keywords
traffic flow; non-linear stability; wavefront method
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This paper presents our study of the nonlinear stability of a new anisotropic continuum traffic flow model in which the dimensionless parameter or anisotropic factor controls the non-isotropic character and diffusive influence In order to establish traffic flow stability criterion or to know the critical parameters that lead, on one hand, to a stable response to perturbations or disturbances or, on the other hand, to an unstable response and therefore to a possible congestion, a nonlinear stability criterion is derived by using a wavefront expansion technique The stability criterion is illustrated by numerical results using the finite difference method for two different values of anisotropic parameter It is also been observed that the newly derived stability results are consistent with previously reported results obtained using approximate linearisation methods Moreover, the stability criterion derived in this paper can provide more refined information from the perspective of the capability to reproduce nonlinear traffic flow behaviors observed in real traffic than previously established methodologies
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