Orphan Road has an interesting snip from the Seattle Times concerning the replacement of a busy highway with a boulevard and ancient river in Seoul, Korea. Once a nightmare with traffic, crime, slums and unwanted pollution, the viaduct was replaced with a boulevard and river. It has been very successful redeveloping that area of the city of Seoul.
It's amazing that people still call for more highways, when all we need to do is tear them down and redesign how we live our lives. If there is anyone out that would rather live in the first image please tell me because I have some oceanfront property in Tennessee to sell you.