TWO DIMENSIONAL ANISOTROPIC MACROSCOPIC SECOND-ORDER TRAFFIC FLOW MODEL.

Fosu, Gabriel Obed; Oduro, Francis Tabi

In the past, the density-gradient term of second-order macroscopic models was replaced with a speed-gradient term to rectify the rearward movement of traffic waves. Hither, a classical speed-gradient macroscopic model is extended to account for the lateral flow dynamics on a multi-lane road. The anisotropic model is modified to capture some inherent vehicular multi-lane traffic features; lateral viscosity and velocity differentials. These variables are quantized within the scope of a two-dimensional spatial domain as opposed to the existing one-dimensional model. A detailed exemplification of acceleration and deceleration waves, stop-and-go waves, and cluster effects are presented to explain the path of information flow. All these non-linear flow properties are evident throughout the simulation.

TRAFFIC flow

Journal of Applied Mathematics & Computational Mechanics, 2020, Vol 19, Issue 2, p59

2299-9965

Academic Journal

10.17512/jamcm.2020.2.05