Safety Improvements With Autonomous Vehicles in a Road Environment

We often think about the promise of safety improvements with autonomous vehicles. How should we think about safety in an environment where AVs will mix with human drivers as well for probably a long, long time? That is clearly one of the biggest uncertainties that we have. If all the vehicles were automated, then there would be many possibilities that you could act on,. including possibilities that involve communications among the vehicles as they're on the road.