U.S. Energy Secretary Spencer Abraham announced a project Nov. 12 at an auto conference in Dearborn, MI, to develop more fuel-efficient heavy trucks and buses.

"Our goal is to dramatically improve the energy efficiency and safety of trucks and buses, while maintaining a dedicated concern for the environment," Abraham said in a statement.

The partnership will focus on building engines that use alternative fuels and heavy-duty trucks that use gasoline-electric powertrains. The initiative is called the "New Vision for the 21st Century Truck Partnership."

Rather than setting new fuel economy targets, the partnership will focus on more incremental improvements on fuel economy, pollution levels and safety advances, according to those familiar with the program, as reported by the The Detroit News.

The program will look at ways to minimize or eliminate engine idling, reduce energy loss from aerodynamic drag and improve the safety of heavy-duty trucks. The effort also is expected to speed the introduction of safety advances such as collision avoidance and rollover-prevention devices.

The partnership includes various federal agencies, General Motors Corp., DaimlerChrysler AG, and engine and truck manufacturers.