It is safe IMO to go 90-95 MPH in there.
That argument can be made for virtually most segments of interstate highways, not just in Virginia.
Assuming traffic is light and you have an open road… weaving in and out of traffic moving 75-80 mph just to go 90+ mph is just reckless.
But the fact the lanes are 70 mph in a relatively urban / suburban section of I-66 as opposed to 55, 60, or 65 mph… it’s not that hard to set the cruise at 75 or 80 mph.
People who go 90+ are presumptively eligible for a reckless driving ticket. Those are exactly the people the cops want to nab. And I’m happy to move over to let those idiots be the drones–let them show off how fast they think they are so they get the ticket.
I like these people. Let’s me for more comfortable with my “speeding” (7-8 mph over for me on a relatively traffic-less highway) because I know they’ll sweep out all the police ahead.
Honestly, as long as traffic is light and they’re just cruising on the open highway, it’s not endangering me or anyone else. They’re just risking themselves a hefty ticket. It’s why I don’t think speed should be a sole determination of reckless driving. Someone doing 100 mph on an 8 lane interstate with zero traffic is not driving in a reckless manner. Speeding? Very much so. Not reckless, however. But that is a whole different discussion.