Influence of the traffic interruption probability on traffic stability in lattice model for two-lane freeway

• An extended lattice model is proposed by incorporating the traffic interruption probability for two-lane freeway.
• The interruption probability can efficiently suppress traffic jams under high response coefficient with lane changing.
• The traffic interruption probability plays an important role on the mKdV equation.
• The traffic interruption factor can improve the stability of traffic flow with lane changing under intense response to traffic interruption incident.

In this paper, a new lattice model is proposed with the traffic interruption probability term in two-lane traffic system. The linear stability condition and the mKdV equation are derived from linear stability analysis and nonlinear analysis by introducing the traffic interruption probability of optimal current for two-lane traffic freeway, respectively. Numerical simulation shows that the traffic interruption probability corresponding to high reaction coefficient can efficiently improve the stability of two-lane traffic flow as traffic interruption occurs with lane changing.