Effect of connected automated driving on traffic capacity

Connected automated vehicles are now moving towards reality. With the help of advanced artificial intelligence and vehicle-to-vehicle/ vehicle-to-infrastructure communication, connected automated vehicles can keep higher speed with shorter headway, and drive with neighboring vehicles to formulate platoons. The application of connected automated vehicles will change the relationship of traffic flow and vehicle density. In this paper, we first analyze the increase of traffic capacity regarding to the ratio of connected automated vehicles. Then, we use microscopic traffic model to verify our analysis conclusion.