I believe you're right about that looking back. One of the safest developments in car culture has been the round-a-bout. Of course that works so well because it

I believe you're right about that looking back. One of the safest developments in car culture has been the round-a-bout. Of course that works so well because it physically prevents the collisions that would otherwise happen in the centers of intersections. My hope is that we will extend that idea to all roads everywhere, and that future generations will physically separate roads intended for cars from roads intended for cyclists and pedestrians. Burying them underground but w/ ventilation for the exhaust, for example.