Columbia subject headings:
Harvard subject headings:
Containerization--Law and legislation--United States--States.
Federal aid to transportation--United States.
Highway planning--Law and legislation--United States.
Transportation and state--United States.
Transportation--Finance--Law and legislation--United States--States.
Transportation--Law and legislation--United States
Transportation--United States--Planning
Princeton subject headings:
Federal aid to transportation--United States.
Highway planning--Law and legislation--United States.
Transportation and state--United States.
Transportation--Finance--Law and legislation--United States--States.
Transportation--Law and legislation--United States.
Transportation--United States--Planning.