What is the purpose of the orange and white checkered flag on a vehicle in restricted areas?

The orange and white checkered flag on a vehicle in restricted areas serves a specific purpose related to security and access control. It denotes that the vehicle is authorized to operate within those restricted areas. This visual identifier helps airport personnel, security teams, and other authorized individuals quickly recognize vehicles that have the right to be in sensitive locations, ensuring better security and safety within the restricted zones.

Understanding this designation is crucial for maintaining order in busy environments like airports, where unauthorized access could lead to potential security risks or safety hazards. In contrast, the other options described do not accurately reflect the purpose of the checkered flag. For instance, flags indicating construction zones or emergency responses serve different functions and would typically feature different markings or colors. Likewise, parking zones would not require the same kind of flag to communicate authorization but would rather utilize standard signage for that purpose.