Different types of vehicles
Trailer and semi-trailer
The trailer is harnessed to a carrier while a semi-trailer is harnessed to a tractor. A trailer can be of 2 types:
The tautliner trailer and tilt trailer
The Tautliner (left), makes it possible to manipulate the protection tarpaulins (sides and roof ...) from the ground and/or floor of the trailer, as opposed to the "Tilt" (right) that requires the use of a ladder.
Carriers have, on the same chassis, the cabin and cargo volume for transporting goods.
This volume may be a platform body, tank car, tipper, a flexible case (tautliner or tilt), a rigid case (van), etc.
The road tractor is a part of a whole unit and is called an articulated vehicle. Several models exist in two or more axles, depending on the use and type of transportation of goods carried out. Generally, they are limited by a speed limiter calibrated to European standards (90 km/hour in Europe). Behind a road tractor hangs a semi-trailer that rests on a locking platform: the fifth wheel.
When a tractor is by itself (without its trailer), it is said to be "solo” in road jargon. And to use words loosely, an articulated vehicle is often called a “semi-trailer".