Transportation System Efficiency

Efficient transportation systems achieve transportation goals (such as enabling people to get to work or goods to be delivered) while reducing vehicle miles traveled (VMT).

Reducing VMT conserves fuel and reduces vehicle emissions. VMT reduction strategies—or transportation demand management—also can reduce traffic congestion, enable the use of more efficient vehicles, reduce transportation costs, and save time for drivers.

Today, transportation represents 29% of annual energy use in the United States, and on-road vehicles account for more than 80% of all transportation energy use. Energy use may change dramatically as consumer behavior and the on-demand economy adapt to and influence new mobility services and transportation technologies. These disruptive changes have the potential to provide improved mobility options for consumers, but the impact to transportation energy use is largely uncertain. The U.S. Department of Energy’s Energy Efficient Mobility Systems program is investigating opportunities to increase mobility energy productivity.

Transportation planners and corporate decision makers can implement strategies to improve fleet and consumer fuel efficiency by targeting the transportation system in the following ways.


Learn how to support rideshare and car share programs to help your community conserve fuel and reduce emissions.

Mass Transit 

Discover ways to encourage and enable your community to conserve fuel by using mass transit.

Active Transit 

Find ways to help people conserve fuel and improve their health through active transit like biking and walking.

Multi-Modal Transportation 

Explore ways to combine multiple modes of transportation to conserve fuel and reduce VMT.


Find out how teleworking can help you or your employees conserve fuel, reduce congestion, and save money.