Federal Highway Administration, America's Highways 1776–1976: A History of the Federal-Aid Program (1977)
“ Good roads were an important link in the creative force that is transportation that started from the waterways, to the railways, to roadways, and on to the airways. A continuing theme throughout the Chief’s years with the Bureau of Public Roads was the importance of the principle of Federal-State cooperation in the framework of our form of government. Pyke Johnson describes this belief as “the continued achievement of an engineering job of the magnitude of our highway program [that] must rest upon the essential premise that here we are dealing with the lives of people. ”
