With the advent of connected and automated vehicles, it is now possible to greatly improve how traffic flows through existing arterial roadway networks. Traditional signalization techniques at roadway intersections can now be significantly improved in terms of safety, mobility, and the environment using infrastructure-to-vehicle as well as vehicle-to-vehicle communications. In addition, intersection controllers can now also be designed to allocate space and time occupancy of vehicles for better efficiency. Further, new roadway intersection geometries may emerge to better suit connected and automated vehicles. In this presentation, a variety of different traffic and communication scenarios will be described and illustrated using traffic simulation tools. In addition, recent results from USDOT real-world pilot studies will be described.
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