What is the primary purpose of a trailer?

The primary purpose of a trailer is to transport goods or individuals without carrying weight on the motor vehicle. Trailers are designed to be towed by vehicles and do not have their own power source. They effectively increase the load capacity of the towing vehicle, allowing for the transportation of larger items or more passengers than the vehicle can handle alone. This functionality is crucial in both commercial and personal contexts, enabling moves ranging from hauling heavy equipment to carrying recreational gear.

This transportation capability distinguishes trailers from other types of vehicles or facilities designed for different functions. For example, although trailers can provide living spaces or be used as mobile stores, their fundamental design and utility focus on facilitating the movement of cargo or people, rather than serving as living accommodations or retail spaces.