What type of device is NOT allowed under any circumstances while driving airside?

The correct answer identifies that personal audio/video devices are not allowed under any circumstances while driving airside. This restriction is in place primarily because using these devices can significantly distract the driver, increasing the risk of accidents in an environment where safety is paramount. Airside operations demand full attention since vehicles are maneuvering near aircraft, airports, and other vehicles. The use of personal audio/video devices could impair a driver’s ability to respond quickly to surrounding situations, thereby endangering not just the driver but others in the vicinity as well.

In contrast, while cell phones, GPS systems, and walkie-talkies have their own restrictions and may require specific conditions for safe use, they can be permissible in certain situations. For example, cell phones may be used hands-free, and GPS systems are often employed for navigation. Walkie-talkies are sometimes used for communication purposes, as long as they do not distract from the driving task. However, personal audio/video devices are explicitly prohibited due to their potential for significant distraction and the unique safety requirements of airside operations.