> it's in the context of disengaging to let safety driver take over, in carefully controlled conditions. There is no safety driver. This study is discussing th

> it's in the context of disengaging to let safety driver take over, in carefully controlled conditions. There is no safety driver. This study is discussing the fully driverless level 4 autonomous vehicles that Waymo operates in California and Arizona. This particular study show that those vehicles had accident rates 3-9x lower than human drivers, even after controlling for the limitations on where they operate (such as not operating on highways).