Ahahahahaha. Great spread!

We here in Yuma have the Newtonian (equal but opposite) formula. Low speeds and every bit of the smoke contained. A surprisingly large fraction of the population seems to fear that they will tip their rig over in any turn over 5 mph. Speed limits are for first responders only. If you can see a car (and you can see a LONG way in our flat environment) it's way too busy to enter traffic. The half mile long entry ramps to the freeway are meant to be traveled at 35 mph so that you can merge with 65 mph traffic without intent.

We still have lots of broken buildings. Old people seem to forget which pedal does what when they leave their ride for a time. It's low speed, sure, but they never stop until their car can't go any farther. I can't tell you how many handicapped parking signs have been left inside restaurants, doctor's offices and hearing aid shops...