A modified two-lane traffic model considering drivers’ personality

• A modified two-lane CA traffic model considering drivers’ personality is proposed.
• The vehicle updating rules taking into account dynamic headway are introduced.
• The proposed new symmetric lane changing rules are proved more realistically.
• The dynamic properties of the free flow and the congested traffic are analyzed.
• The phenomenon of high speed car-following is exhibited by using the new model.

Based on the two-lane traffic model proposed by Chowdhury et al., a modified traffic model (R-STCA model, for short) is presented, in which the new symmetric lane changing rules are introduced by considering driving behavioral difference and dynamic headway. After the numerical simulation, a broad scattering of simulated points is exhibited in the moderate density region on the flow-density plane. The synchronized flow phase accompanied with the wide moving jam phase is reproduced. The spatial–temporal profiles indicate that the vehicles move according to the R-STCA model can change lane more easily and more realistically. Then vehicles are convenient to get rid of the slow vehicles that turn into plugs ahead, and hence the capacity increases. Furthermore the phenomenon of the high speed car-following is discovered by using the R-STCA model, which has been already observed in the traffic measured data. All these results indicate that the presented model is reasonable and more realistic.