Cellular automaton model for bidirectional traffic under condition of intelligent vehicle infrastructure cooperative systems

In rural areas, there are a lot of two-lane bidirectional transportation systems. Inspired by the rapid developing wireless communication technologies, we propose a novel cooperative two-lane bidirectional model through applying the Intelligent Vehicle Infrastructure Cooperative Systems (IVICS) to the cellular automata (CA) model. Compared with the traditional model represented by the Simon and Gutowitz (SG) model [1], all the vehicles in cooperative model can obtain the speed and headway of other vehicles around. With vehicle-to-vehicle(V2V) and vehicle-to-infrastructure (V2I) communications, we have shown the new rules for lane change and speed update. Some simulation experiments are given to analyse the two models more intuitively. The results show that the cooperative model has an advantage on flow, overtaking frequency, successful lane change possibility and average speed, which indicates that the traffic efficiency has been improved significantly.

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