In "Canada Bound" on Life As I Live It, Squire tells us about picking up a bicyclist from Dallas who is on his way to Canada on a mountain bike, and giving him a ride to the other side of Little Rock. He was riding on I30, both illegal and dangerous as Squire points out, and I30 has no frontage roads through Little Rock.
Man, used to be you could head out on the old US Highways on your bicycle, on foot, or perhaps on your trusty Honda Trail CT90, and see the country at a leisurely pace. On the cheap. Possum style. Anymore, all roads lead to the big cities, and those same US Highways disappear for miles, replaced by whatever Interstate happens to be going the same way. Interstates that ban pedestrians, bicycles, and anything that can't keep up with the hordes of aggressive drivers who will gamble with YOUR life for just one more carlength closer to wherever they're going. Interstates that people in cars die on everyday, nevermind what could happen to those on a bicycle or a 50 mph small motorcycle.
Things are better these days, in some ways. Worse in others.