Transportation helps shape an area's economic health and quality of life. Not only does the transportation system provide for the mobility of people and goods, it also influences patterns of growth and economic activity by providing access to land. The role of transportation planning is to identify and understand these influences and relationships-such as those highlighted in Figure 2-to make well-informed decisions.
In addition to developing their own transportation planning processes, Tribes should be involved in the transportation planning processes of Bureau of Indian Affairs Indian Reservations Roads (BIA IRR) program, metropolitan planning organizations (MPO)'s governmental agencies that do transportation planning for an entire metropolitan area-and the State Department of Transportation (DOT). This will allow Tribes to influence transportation planning decisions that will affect life on Indian lands.