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  2. Restricted airspace - Wikipedia

    en.wikipedia.org/wiki/Restricted_airspace

    Section of the Sectional Aeronautical Chart for Washington 90th edition, showing the restricted area R-5002 around Warren Grove, New Jersey. Restricted airspace is an area of airspace typically used by the military in which the local controlling authorities have determined that air traffic must be restricted or prohibited for safety or security concerns.

  3. Restricted military area - Wikipedia

    en.wikipedia.org/wiki/Restricted_military_area

    Restricted military areas are associated with strict legal restrictions. In Australia, military bases cannot be sketched, drawn, photographed and people who do so are subject to 6 months imprisonment. Even approaching a base with equipment capable of doing those things is forbidden. [2]

  4. Restricted area - Wikipedia

    en.wikipedia.org/wiki/Restricted_Area

    Restricted area may refer to: An area that only authorized people can enter; see also exclusion zone; Restricted area, a zone within the key of a basketball ...

  5. Piggybacking (security) - Wikipedia

    en.wikipedia.org/wiki/Piggybacking_(security)

    No Tailgating sign at Apple Inc. office. In security, piggybacking, similar to tailgating, refers to when a person tags along with another person who is authorized to gain entry into a restricted area, or pass a certain checkpoint. [1] It can be either electronic or physical. [2]

  6. Security identification display area - Wikipedia

    en.wikipedia.org/wiki/Security_identification...

    Security Identification Display Area, or SIDA, is a special security area designated by an airport operator in the US to comply with Transportation Security Administration (TSA) requirements in CFR 49 1542.205. An identification system must be used in this area.

  7. Military operations area - Wikipedia

    en.wikipedia.org/wiki/Military_operations_area

    Areas near actual combat or other military emergencies are generally designated as restricted airspace. See Temporary Flight Restriction (TFR). A MOA is a type of special use airspace (SUA), other than restricted airspace or prohibited airspace , where military operations are of a nature that justify limitations on aircraft not participating in ...

  8. Special use airspace - Wikipedia

    en.wikipedia.org/wiki/Special_use_airspace

    The area may expand or shrink based on activities on the surface Restricted Area: Denote the existence of unusual, often invisible, hazards to aircraft such as artillery firing, aerial gunnery, or guided missiles: Require clearance from the controlling agency: R-4808N surrounding Area 51: Name starts with "R-" and delineated with : Warning Area

  9. Airport security - Wikipedia

    en.wikipedia.org/wiki/Airport_security

    Sensitive areas in airports, including airport ramps and operational spaces, are restricted from the general public. Called a SIDA (Security Identification Display Area), these spaces require special qualifications to enter. Systems can consist of physical access control gates or more passive systems that monitor people moving through ...