One of the main obstacles to change is that the transportation establishment has organized itself into a well structured, disciplined and cohesive profession, dedicated to delivering on its perceived mandate to provide Americans with a system of high speed and supposedly safe roads. The industry has managed to influence two generations of planners, politicians, developers, people in construction industries, special interest groups, and the public itself about how planning should be done to achieve these goals. There is a language and terminology, funding mechanisms, curriculum at universities, carefully articulated values and policies that have been institutionalized at a scale that has rarely been matched.