65 in a 55 is much less dangerous than 85 in a 35. It wouldn’t be common that road conditions would permit very high speeds while at the same time having an art

65 in a 55 is much less dangerous than 85 in a 35. It wouldn’t be common that road conditions would permit very high speeds while at the same time having an artificially lowered speed limit (e.g construction). This shouldn’t be a problem, in general, with a couple extra sanity checks. I would expect the correct solution to more commonly have the opposite problem: too slow in a faster zone.