08/23/1966
https://www.presidency.ucsb.edu...
"We are in the midst of a major effort to beautify our highways and roadsides"
"American ingenuity and determination are constantly being applied to improve and expand this system."
"We must continue to plan our highway system so that it will contribute to the rational use of urban space as well as to pleasant and convenient transportation through the countryside"
"We have doubled the miles of paved streets and roads in the past 20 years, and our unequalled highway network, constantly being expanded and improved, makes us the most mobile country in the history o..."