Also, many municipalities have stupid or predatory speed limits. Many town roads have a natural safe 40-45 mph limit, yet some coalition of neighbors got together once and convinced the town to drop it to 25-30 mph because "cars just go by way too fast on that road!" Either that or it's a small town on the way to a tourist spot that drops the limit from 55 -> 30 for a 1/4 mile segment behind a blind curve just to rake in tourist dollars through modern highway robbery.