Debate on the safety of autonomous vehicles was heightened after a Tesla car in self-driving mode failed to detect a tractor trailer and crashed into it in Williston, Fla., in May, killing its driver. While self-driving technology could potentially reduce human fatalities, regulatory consistency across U.S. states will boost innovation and thereby safety, said Wharton management professor John Paul MacDuffie . He is also director of Wharton’s Program on Vehicle and Mobility Innovation at the School’s Mack Institute for Innovation Management . MacDuffie discussed the emerging scenario for driverless cars on the Knowledge at Wharton show on Wharton Business Radio on SiriusXM channel 111 . (Listen to the podcast at the top of this page.) Here are five key takeaways from MacDuffie on the debate on driverless cars (jump to the corresponding spot in the podcast using the time codes provided): A rash of questions: Was Tesla Too Hasty?…