Back in the last century when I learned to drive, we didn't have speeding tickets on open highways.
Had suggested speeds and recommended speeds.
You could still get a ticket for "Violating the Basic Rule".
Don't drive faster than your vehicle, the road surface, time of day etc. would be prudent.
An old truck with bald tires should not do 45 mph in a rainstorm.
A new Corvette with good tires on a sunny day with good visibility could go 85 or more.
I was once clocked at 105 on a sunny day on open road - could see for miles ahead.
It's great fun!
Most tickets now are "Revenue Enhancements" for the gov.
Lots of folks out of work - no income taxes from them.
Grey