Road quality is one of the most important factors influence the behaviors of vehicles, which may increase the safety of the autonomous vehicle with adaptive cruise control (ACC) model if take into consideration. This paper tends to investigate the impact of ride quality on the driving behavior of autonomous vehicles through the simulation tool, VISSIM. The road impact factor (RIF), a road quality index detected from the accelerometers on the smart mobile devices placed on regular vehicles, is used to describe the road quality. If the detected peak RIF is over a certain value, the communication to the autonomous vehicle will indicate a need to reduce the speed in the micro-simulator “Verkehr In Städten – SIMulationsmodell” (VISSIM) simulation. The difference between the driving behavior of the ACC vehicles with and without knowing the ride quality will be used to evaluate the impact of ride quality on driving behavior of autonomous vehicles through simulation.
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