(b) A Department of Transportation is necessary in the public interest and to
(1) ensure the coordinated and effective administration of the transportation programs of the United States Government;
(2) make easier the development and improvement of coordinated transportation service to be provided by private enterprise to the greatest extent feasible;
(3) encourage cooperation of Federal, State, and local governments, carriers, labor, and other interested persons to achieve transportation objectives;
(4) stimulate technological advances in transportation, through research and development or otherwise;
(5) provide general leadership in identifying and solving transportation problems; and
(6) develop and recommend to the President and Congress transportation policies and programs to achieve transportation objectives considering the needs of the public, users, carriers, industry, labor, and national defense.