I watched a documentary about this back in college.mserko1 said:Actaully, it was during the early 1900'2, let's say 1910. That the big american automobile makers actually bribed the political machines in place in major cities to, get this, shut down or remove public transportation projects.
Here is a quote from Wikipedia: "During the 1920s and 1930s General Motors bought out the bus company Yellow Coach, helped create Greyhound bus lines, replaced intercity train transport with buses, and established subsidiary companies to buy out streetcar companies and replace the rail-based services with buses. GM formed United Cities Motor Transit, in 1932. See General Motors streetcar conspiracy for additional details."
...once the rail based transportation was replaced with buses, the mechanism for modern day sprawl was in place.