What may be necessary when positioning the aerial apparatus on a thin-skinned paved surface?

When positioning the aerial apparatus on a thin-skinned paved surface, the use of additional cribbing may be necessary to provide extra support and prevent ground failure. Thin-skinned pavements may not have the structural integrity to support the weight of the aerial apparatus, especially when it is extended or operational. Cribbing helps distribute the weight of the apparatus more evenly across a larger area, reducing the risk of damaging the surface and providing stability. This practice ensures the apparatus remains safe and operational while minimizing any potential impact on the ground beneath it.

Other options, while they may address stability or support in different contexts, do not effectively enhance the safety and integrity of the apparatus on a thin-skinned surface as additional cribbing does. For instance, lowering the aerial device or using an auxiliary support vehicle may not provide the necessary ground support, and simply reducing weight could hinder the apparatus's operational capabilities.