Federal Highway Administration, America's Highways 1776–1976: A History of the Federal-Aid Program (1977)
“ The highway planner plans a system and the engineer builds and maintains it, but they do not provide highway transportation. A railroad company provides transportation; an airline provides transportation; a transit company provides transportation; but the highway agency provides for transportation. From another viewpoint, the question sometimes is raised as to whether we in the United States do any highway planning. ”
