They're made up of two main parts: the semi-truck and the semi-trailer. Together, they form the full rig you see hauling goods across the country. Truckers sometimes drive the semi-truck without ...

Because of their ability to carry massive loads across immense distances, semi-truck trailers are considered a very important element in the logistics and supply chain industry. Carrying ...

Even though we see them almost every day on the roads and highways, it's easy to still be overwhelmed by the gargantuan size of a semi-truck. It may seem odd to consider a machine as massive as a ...

and pressure from the truck’s engine-powered air pump releases the brakes, can the trailer roll. Thus: “semi-trailer.” The terms "semi" and "semitruck" evolved from there. The maximum weight ...