Cooperative automated driving systems can be simulated using a vehicle dynamics simulation tool – such as CarMaker and CarSim – or a traffic microsimulation tool – like Vissim and Aimsun. Vehicle dynamics simulation tools are mainly used for verification and validation purposes on a small scale. Traffic microsimulation tools, however, are mainly used for large scale verification purposes. Vehicle dynamics simulation tools can simulate longitudinal, lateral, and vertical dynamics for only a few vehicles in each scenario. For example, CarMaker and CarSim allow simulating up to 10 and 20 vehicles, respectively. Conventional traffic microsimulation tools can simulate vehicle-following, lane-changing, and gap-acceptance behaviors for many vehicles in each scenario without simulating vehicle powertrains. Vehicle dynamics simulation tools are more resource-intensive but result in higher accuracy than traffic microsimulation tools. Due to the limitation of the software architecture or computing resources, simplifying the underlying assumptions used by convectional traffic microsimulation tools may have been a necessary compromise long ago. However, to enable the adoption of cutting-edge, connected vehicle technology, there is a need for a simulation tool capable of optimizing computational complexity and accuracy to simulate many vehicles in each scenario with reasonable accuracy.
Contact Information: Dr. Arman Sargolzaei, a.sargolzaei@gmail.com …...more
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