What is an example of a "No Entry" area in the airport?

A "No Entry" area in an airport is designated as a location where unauthorized personnel are not allowed to enter due to safety and security considerations. Restricted areas near active runways are classified as such because they pose significant hazards, including the risk of collision with aircraft or other airside operations. Access to these areas is strictly controlled to ensure the safety of all airport operations and personnel.

In contrast, the other options do not typically carry the same level of access restrictions. Ticketing areas and terminal buildings are designated for passenger access and do not have the same critical safety concerns associated with them. Parking lots, while they may restrict access to certain areas, do not fall under the same stringent categories as the restricted zones near runways.

Thus, the identification of restricted areas near active runways as a "No Entry" area is crucial for maintaining airport safety protocols and ensuring that only authorized personnel operate in high-risk environments.