What factor is primarily considered during training for specialized vehicles?

The factor that is primarily considered during training for specialized vehicles is operational effectiveness in varied conditions. This focus ensures that operators learn how to handle the vehicles in different scenarios, such as adverse weather conditions, various surface types, and emergency situations. Understanding how the vehicle performs in these diverse environments is critical for safety and efficiency on the airside, where conditions can change rapidly.

By emphasizing operational effectiveness, training programs aim to prepare vehicle operators not only to maneuver safely but also to make quick, informed decisions when faced with unexpected challenges. This comprehensive understanding is essential for maintaining safety standards and ensuring that specialized vehicles can perform their roles effectively in the busy airport environment.