Many accidents involving apparatus are caused by the operator:

Understanding the capabilities of the apparatus is crucial for safe and effective operation. Fire apparatus, such as fire engines and aerial ladders, have specific design features and limitations that the operator must comprehend to navigate safely, especially in emergency situations. For instance, operators need to be aware of the vehicle's size, weight, turning radius, and braking distance. Misjudgment of these capabilities can lead to accidents, such as tipping over on a sharp turn or failing to stop in time, particularly when responding to emergencies.

In contrast, all other factors play a role in apparatus accidents, but the fundamental issue lies in the operator's understanding of their equipment. Failure to adhere to traffic signals, disregarding weather conditions, or being distracted within the cab can all contribute to incidents, but these scenarios often stem from a lack of training or knowledge about how to operate the vehicle safely and effectively under varying conditions. Therefore, being well-versed in the apparatus's capabilities is essential for preventing accidents and ensuring the safety of both the operator and the public.