Analysis by Macroscopic Model Using Optimal Velocity Model in Two-lane Traffic Flow

In the present study, the formation of the traffic congestion in two-lane traffic flow is studied. The two-lane macroscopic model using the optimal velocity model which has been introduced in the microscopic model is constructed on the basis of the one-lane model. We adopt different optimal velocity function to each lane and new rules of changing lanes are introduced. Numerical simulations are performed in order to investigate the characteristic phenomena of two-lane traffic flow. In particular, we concentrate the discussion about the property of "Synchronized flow", one of the most characteristic phenomena of two-lane traffic flow. Furthermore, the fundamental diagrams from the simulations are compared with those observed in a highway.