Which of the following is an essential characteristic of a Blue-Stripe driver?

A Blue-Stripe driver must possess knowledge of towing operational guidelines, as it is a fundamental aspect of their role in ensuring safe and efficient towing maneuvers at O'Hare Airport. This includes understanding the specific procedures, signals, and protocols associated with towing aircraft, which is critical for maintaining safety and compliance with airport regulations.

While the ability to operate multiple types of aircraft, familiarity with airport restaurants, and skills in passenger assistance may be relevant in other contexts within airport operations, they are not essential characteristics specifically required for a Blue-Stripe driver focused on towing tasks. The towing operational guidelines are crucial for avoiding accidents, ensuring proper communication with other personnel, and adhering to airport safety standards, making this knowledge paramount for anyone in this role.