restricted zones
No-entry sectors designated
Restricted zones are areas where access or activity is limited or prohibited.
The term appears in military, aviation, and security contexts: The airspace over the capital is a restricted zone.
Urban planning may designate restricted zones for specific uses.
In sports, restricted zones mark areas with special rules—basketball's painted area near the basket limits where defenders can draw charging fouls.
- no-fly zonesAreas barring aircraft entry
- military basesArmed forces installations
- government propertyHoldings owned by the state
- top secretHighest classification level
- restricted airspaceAviation exclusion area
demilitarized zones · nature reserves · chemical plants · conservation areas · exclusion zones · nuclear facilities · protected wetlands · customs checkpoints · security guards · passwords · quarantine · forest preserves · power stations · marine sanctuaries · firewalls · red tape · barriers · flight paths
- event safetycrowd control, crowd management, crowd barriers, crowd flow, evacuation plan
- North KoreaPyongyang, Kim Jong Un, Kim Jong-un, Kim Jong Il, Kim Jong-il
- Soviet tourismRed Square, Moscow, Leningrad, guided tours, travel permits
- drone rulesno-fly zones, weight limits, geofencing, restricted areas, registration
- barrierswalls, wall, fences, fence, barrier
- Cold War EscapeBerlin Wall, Iron Curtain, Checkpoint Charlie, escape attempts, defection
restricted zonespublic spaces
Areas open to all
public domain · open land · common areas · commons · public land