What action should be taken if visibility is significantly reduced while operating a vehicle airside?

When operating a vehicle airside and encountering significantly reduced visibility, the appropriate action is to slow down and proceed with caution. This approach enhances safety for both the driver and others in the vicinity by allowing for greater reaction time and awareness of surroundings. Airside environments can present various hazards, including other vehicles, aircraft, and personnel, all of which require heightened attention when visibility is compromised.

Slowing down minimizes the risk of accidents, as it allows for more control over the vehicle, particularly in conditions where obstacles may not be readily visible. Proceeding with caution ensures that any unexpected situations can be addressed safely and effectively.

The other actions, such as increasing speed or continuing as normal, fail to prioritize safety in conditions of poor visibility. Driving with high beams on is also inappropriate, as it can cause glare and reduce visibility further for other drivers, contributing to unsafe driving conditions.