Well, it seems that the eastern states have much worse roads. I could speculate as to why. It might be due to how old the cities are, and the roads were build long ago. Then, when they go to rebuild, they follow the old paths from previous roads. A lot of the population in midwest and west came after the Interstate system was built. When cities are built now, the engineering is more geared toward modern road workings. On the east coast, they would need to plow the whole thing up and start over to equal the same results.