[Kooper]

Interesting. Driving too fast kills and driving too slow harms the environment.

The point of automotive transport is to my mind increase our productivity by cutting down on time spent traveling by foot or by pedal or by hoof.
Yet, even if there were no speed-bumps, there's still other traffic to get around. And of course pedestrians. And of course kittens.

Maybe our solution lies in the automated driving solutions currently being developed. If say we can someday have cars that can drive themselves near perfectly, then surely we can cut out things like stops, traffic lights and unnecessary time wasted sitting in traffic jams. I know I'm not alone when I think that if the car in front of you accelerates, you directly behind it should be able to accelerate at nearly the exact same time, result being a whole lot more cars getting moving again at the same time instead of 1-at-a-time we're currently seeing worldwide...

Anyways, back to the point. If cars could be driven by some AI to tolerances of mere centimeters in traffic situations someday in the future, maybe this will permit us to have no speed-bumps, stop signs, speed-limits and all the rest as there'd be no need for it.

There are still the mindless peds to consider of course, as well as other factors like stray animals and stray kittens, but hey, I'm dreaming here.