Improvement of transportation system efficiency by altering transportation system demand through management of pricing, services, employment-based actions, such as staggered work hours and telecommuting, and regulations, rather than capital improvements.
Measures which try to reduce the proportion of person-trips traveling by Single Occupant Vehicle (SOV). They can include promotion of non-SOV modes of transportation, car and vanpool formation assistance, transit subsidies, and a variety of other measures.
Program designed to maximize the people-moving capability of the transportation system by increasing the number of people in each vehicle or by influencing the time of, or need to, travel. To accomplish these sorts of changes, TDM programs must rely on incentives or disincentives to make the shifts in behavior attractive. The term TDM encompasses both the alternatives to driving alone and the techniques or supporting strategies that encourage the use of these modes.