What type of signage is activated during RVOP?

The correct answer is that critical area signs are activated during RVOP (Runway Vehicle Operating Procedures). Critical area signs are essential for maintaining safety and operational efficiency on the airfield. They are designed to identify areas where vehicle operations could interfere with aircraft movements and provide guidance to operators regarding restrictions and requirements when entering or traversing these zones.

During RVOP, specific signage is crucial to prevent collisions and ensure that vehicles do not enter areas that might pose a risk to aircraft. This is particularly important around runways and taxiways, where the presence of vehicles must be carefully regulated.

Other types of signage, such as stop signs, while important in their contexts, do not encompass the specific focus on critical areas that is vital during RVOP operations. Similarly, while directional signs for hand signals may provide guidance on how to navigate the airfield, they do not serve the same critical function as the signs specifically designated to indicate restricted or important areas for safety. Therefore, the choice of critical area signs directly aligns with the objectives of RVOP, emphasizing the need to manage interactions between vehicles and aircraft effectively.