You may have noticed semi trucks with long pieces of metal hanging down toward the ground -- this is a side skirt, and here's what they're meant for.

While most semi trucks are limited to one or two trailers, this small handful of states allows truckers to haul up to three ...

The division of Gruppo Rolfo specialising in the production of isothermal bodywork presented an refrigerated semi-trailer at ...

A significant disruption unfolded in Monticello following a semi-trailer crash and product spill on Wednesday morning. Eastbound I-94 was closed between exits 193 and 194 in Monticello. A temporary ...