Strategies for increasing transportation sustainability include demand management, operations management, pricing policies, vehicle technology improvements, clean fuels, and integrated land use and transportation planning. In the past, planning and implementation of such strategies has been slow and spotty, deterred by the complexities of the underlying issues along with uncertainties about the magnitude and timing of impacts, the efficacy of available courses of action, and the consequences of action or inaction. Recently, however, a new interest in actively pursuing these strategies has emerged. Regional planners are increasingly being asked to take a leadership role in these planning efforts, applying their expertise to analysis of the issues and creating forums for discussion, conflict resolution, and joint undertakings.

The paper concludes with an identification of topics deserving additional research, as well as a detailed bibliography on sustainable development topics.