The key advantage to loading a truck directly on a scale is to maximize
the utilization of the truck’s capacity. If trucks are not loaded on scale the
operators must err on the side of caution and underfill the truck to avoid an
overweight condition when the truck is later weighed. This means that less
material is being shipped out per truck. If a truck is overfilled (or grossly
underfilled) then material has to be removed or added to the truck as a
separate process, slowing down production and increasing operational costs.