It isn't just slow or distracted drivers. It is congestion. It is too many cars, and the impossible task of making them all "go" at the same time.

What we need is fewer cars and better shared transportation.

Heck, we should replace ALL cars with busses, and then they could go super fast with all the other buses. Make 'em small, so it's maybe 20 people per bus. That's 20 cars off the road, right there.