In which context is a follow me vehicle used?

A follow me vehicle is primarily used for directing aircraft to park for safety. This vehicle is crucial in ensuring that aircraft navigate safely on the airfield, particularly in areas where visibility may be limited or where runways and taxiways intersect. By providing a clear visual guide, the follow me vehicle helps pilots during taxiing to their parking spots, ensuring they reach designated areas without risking obstructions or hazards.

This function of the follow me vehicle enhances overall airport safety by minimizing the potential for accidents or runway incursions during the sensitive process of taxiing and parking. Proper guidance is essential, especially in busy airports where many aircraft may be maneuvering simultaneously.

In other contexts, such as guiding vehicles on the runway or directing emergency services to incidents, the functions of those actions are typically managed by air traffic control or other dedicated services rather than a follow me vehicle. Transporting crew members around the airport is another logistical operation, but it does not fall under the dedicated role of a follow me vehicle. Therefore, the primary and safety-centric role of directing aircraft to park aligns closely with the correct answer.