In which situation would additional securement devices be necessary?

Additional securement devices are necessary when dealing with oversized or irregularly shaped loads because these types of loads present unique challenges in stability and movement during transport. The dimensions and shapes of oversized loads can make them more prone to shifting, tipping, or becoming unbalanced while in transit. This is particularly important as irregular shapes may not fit securely against the surface of the transport vehicle, increasing the likelihood of movement.

Using additional securement devices helps to create a more stable configuration by distributing weight evenly and providing secure attachment points. Implementing these measures can be critical not only for the safety of the load but also for the safety of other road users, as improperly secured loads can lead to accidents.

In contrast, small and lightweight loads typically require less securement effort, while an empty vehicle would not necessitate load securement devices, and transportation conditions don't inherently dictate the need for added securement devices without the presence of a load.