Is the data publicly available?

I can think of a few roads near me where 90% of the vehicles do 20-25 mph over the limit all the time.

You occasionally see them out there writing tickets, but never seen an accident in that area.

I would think the data could show that the speed limit should be adjusted up.

Understanding that 2 weeks of the year they need to put out some markers about the holiday traffic creating a full stop.. but they need to do that anyway regardless if the limit is 45, 55 or 70.