"The comparison should be with human drivers operating under similar conditions and on similar roads, similar cars(eg. new ones), weather conditions etc." It i

"The comparison should be with human drivers operating under similar conditions and on similar roads, similar cars(eg. new ones), weather conditions etc." It is my guess only, but a significant difference would be that robots cannot get drunk, don't drive in a sleep-deprived state and don't get distracted by texting at the wheel.