Most interstates are constructed to allow higher travel speeds of 70+ mph but there was a time from 1975-1986, the top legal speed was posted at 55 miles per hour, due to the "energy crisis". .
road trips
Outrageous on the Roads…
Follow one of those drivers for a couple of miles and then check your blood pressure.
On The Road Again…
Before Google maps, you never ventured away from home without road maps and/or atlas.