Road design, transportation and walkability

[tomh009]

That said, I do believe within 20 years fossil fuel vehicles will be a thing of the past. And I know that we are all smart enough to go in that direction.

(...)

Maybe one day we'll have a fleet of autonomous vehecies...who knows. That would be good public transit.

In 20 years, sales of gasoline/diesel-powered cars will be in the minority, but they will not have disappeared entirely. There are too many use cases (long distances, remote communities etc) that won't be easily supported by battery-powered (or even fuel cell) vehicles that getting to 100% will take much longer.

Autonomous vehicles as such are no better for public transit than taxis or Uber: they would still be inefficient (albeit with no drivers needed), cause congestion and need road capacity. Maybe larger, shared autonomous vehicles, say, the size of a bus ... ?