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- W2511949208 abstract "A well-known optimal velocity (OV) model describes vehicle motion along a single lane road, which reduces to a perturbed modified Korteweg-de Vries (mKdV) equation within the unstable regime. Steady travelling wave solutions to this equation are then derived with a multi-scale perturbation technique. The first order solution in the hierarchy is written in terms of slow and fast variables. At the following order, a system of differential equations are highlighted that govern the slowly evolving properties of the leading solution. Then, it is shown that the critical points of this system signify travelling waves without slow variation. As a result, a family of steady waves with constant amplitude and period are identified. When periodic boundary conditions are satisfied, these solutions' parameters are associated with the driver's sensitivity, $hat{a}$, which appears in the OV model. For some given $hat{a}$, solutions of both an upward and downward form exist, with the downward type corresponding to traffic congestion. Numerical simulations are used to validate the asymptotic analysis and also to examine the long-time behaviour of our solutions." @default.
- W2511949208 created "2016-09-16" @default.
- W2511949208 creator A5004891954 @default.
- W2511949208 date "2016-08-11" @default.
- W2511949208 modified "2023-09-27" @default.
- W2511949208 title "Travelling wave solutions of the perturbed mKdV equation that represent traffic congestion" @default.
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