Journal
MODERN PHYSICS LETTERS B
Volume 29, Issue 5, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217984915500177
Keywords
Lattice model; slope; traffic flow; two-lane
Funding
- National Natural Science Foundation of China [11102165]
- Natural Science Basis Research Plan in Shaanxi Province of China [2012JM1001, 2013JQ7014]
- Fundamental Research Funds for the Central Universities [3102015ZY050]
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An extended two-lane lattice model of traffic flow with consideration of the slope effect is proposed. The slope effect is reflected in both the maximal velocity and the relative current. The stability condition of the model is derived by applying the linear stability method. By using the nonlinear analysis method, we obtain the Korteweg-de Vries (KdV) equation near the neutral stability line and the modified Korteweg-de Vries (mKdV) equation near the critical point. The analytical and numerical results demonstrate that the stability of traffic flow is enhanced on the uphill but is weakened on the downhill when the slope angle increases.
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