I would think so on rural highways in eastern Oregon, 55 is the fastest allowed which is so slow for most road conditions, it's hard to keep awake and alert.
Last week I drove from Boise to Grants Pass. Fifty-five is too fast to be slow and too slow to be fast. The roads can easily handle 70MHP.
Some of the local gravel roads are 60-70mph(if you're in a hurry, I'm usually not), of course slow down when you meet another outfit. Hate catching rocks on the windshield.
As for speeding, I hate [bleep] who zoom around town 35-40mph, slow down damnit.
