Which of the following vehicles can operate within the security perimeter without special permissions?

Designated city vehicles can operate within the security perimeter without special permissions because they are typically authorized by the airport authority to perform specific functions that serve the airport community, such as public transportation, maintenance, or emergency services. These vehicles are recognized as necessary for the operation and safety of the airport and are therefore granted access without the need for additional permissions.

In contrast, unauthorized personnel vehicles and passenger vehicles lacking airport identification do not meet the necessary requirements for access due to security protocols. Private vehicles with a temporary permit might have limited access, but they require special permissions to operate within the sensitive areas of the airport.