they usually damage road surfaces permanently. Driving a vehicle too fast over a frost heave can damage your shocks and shock your nerves. One nine-mile stretch of road between our home and the next town must be one of the world’s worst roads for frost heaves. In some sections of the road, drivers who hit the heave just right can serve dinner, view an in-flight movie, and earn five hundred frequent flier miles before landing on the other side. Well, so it seems. When the weather breaks to temperatures