Vierassige

Vierassige is a Dutch adjective used in the field of vehicle engineering and transport to describe a chassis or vehicle that has four axles. The term derives from vier- meaning four and as, a form of axle in Dutch, with the -ige suffix forming an adjective. In practice, a vierassig vehicle may be a heavy truck, a tractor-trailer, or a construction machine configured with four axles, often arranged as two axles in the front and two in the rear, or as a combination of steerable and rigid axles. The configuration is chosen to improve load distribution, stability, and reliability when carrying heavy or oversized loads. Regulations in many jurisdictions regulate axle load and vehicle weight according to the number of axles; four-axle configurations allow higher permissible gross vehicle weight while attempting to limit axle loads. In fleet operation, vierassige units may require specialized permits, heavier suspensions, and more complex tire and brake systems. The term is primarily used in Dutch-language contexts; English-language sources would more commonly describe the configuration as "four-axle" or specify the axle arrangement. Related terms include tweeassige (two-axle), drieassige (three-axle) and vijfassige (five-axle) configurations. See also heavy-duty transport, axle load, and vehicle regulation. Vierassige is a technical descriptor rather than a model name; it designates structural characteristics applicable to various vehicle types rather than a single product line.