When might it not be safe to haul legal maximum weights?

When considering the safety of hauling legal maximum weights, it is crucial to take into account both environmental and road conditions. In situations involving bad weather—such as rain, snow, or ice—traction and visibility are significantly reduced, making it more difficult to control a vehicle that is at its maximum weight. In mountainous areas, steep grades and sharp turns can also challenge a vehicle's ability to maintain stability and control.

The handling of a heavier load requires more distance for stopping, and any incline or decline can amplify the risks involved. Therefore, hauling maximum weights under these conditions can lead to increased danger not only for the driver but for other road users as well. Reducing weight or avoiding such conditions altogether improves overall safety while operating a commercial vehicle.