How Segregation Caused Your Traffic JamNY Times article on urban renewal by Kevin M. Kruse, August 14, 2019. From the 1619 Project. The intertwined history of infrastructure and racial inequality extended into the 1950s and 1960s with the creation of the Interstate highway system. The federal government shouldered nine-tenths of the cost of the new Interstate highways, but local officials often had a say in selecting the path. As in most American cities in the decades after the Second World War, the new highways in Atlanta — local expressways at first, then Interstates — were steered along routes that bulldozed “blighted” neighborhoods that housed its poorest residents, almost always racial minorities.