Testing and Improving Vehicle Fuel Economy

How are vehicle fuel economy ratings determined? What factors impact fuel economy? Vehicle fuel economy is tested under controlled conditions using a standardized test procedure. Original equipment manufacturers (OEMs) are required by federal law to t...

Improving Transportation System Efficiency

What strategies are used to reduce vehicle miles traveled (VMT) and improve overall transportation system efficiency? VMT is a measure used in the transportation-planning community and elsewhere to report the number of miles that motor vehicles are dr...