They also forcibly removed black communities to get out of the way in Baltimore, Detroit, San Francisco, along with other cities. Just look at what the new Gordie Howe Bridge went through in just one neighborhood. That was in the 50's and 60's when the country was less developed. It was an obvious need as air travel wasn't common and you had a growing nation getting used to having automobiles and they wanted to go places. Commerce needed it's space too. The need was there.