So, what exactly is a semi-trailer? It's a type of trailer designed to be hauled by a semi-truck. Unlike a full trailer, a semi-trailer doesn't have a front axle. That means it relies on the truck ...

As the trucking industry struggles to recruit drivers, driverless trucks won’t need sleep, won’t speed and won’t get road ...

Truckers sometimes drive the semi-truck without the trailer — a practice known as ... kingpins are generally made from 20CrMnTi, a type of alloy steel that's incredibly hard, tough, and ...