This is a story idea from the Department of Energy's Oak Ridge National Laboratory. To arrange for an interview with a researcher, please contact the Communications and External Relations staff member identified at the end of the tip.
Wide tires on tractor-trailers can reduce the weight of a rig, enabling additional cargo to be added without compromising fuel efficiency. That conclusion is drawn from an in-depth tractor-trailer performance study managed by Oak Ridge National Laboratory's Center for Transportation Analysis. The study focused on a 12-month monitoring of a special tractor-trailer fleet traveling more than 700,000 miles across most of the Eastern United States through different terrain and driving conditions. DOE's Office of FreedomCAR and Vehicle Technologies funded the study.
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