lockdown alert
Shelter-in-place notification
A lockdown alert is an urgent notification warning people to shelter in place due to an immediate threat—typically an active shooter, intruder, or dangerous situation nearby.
Schools, hospitals, and workplaces use lockdown alerts to signal that occupants should secure doors, hide, and await further instructions: The lockdown alert came over the intercom during third period.
- quarantineIsolation preventing disease transmission
- shelter in placeEmergency stay-inside order
- shelterProtected place or structure
- stay at homeNot venture outside
- curfewMandated return time
emergency · public health emergency · siren · warning · restriction · isolation · confinement · pandemic · evacuation · shutdown · crisis · emergency broadcast · drill · announcement · lockdown · active shooter · alarm · red
- alertsalarm, alert, warning, notification, push notifications
- Emergency Codesfull code, 911, 999, SOS, trauma alert
lockdown alertevacuation order
Command to vacate area
evacuation alert · fire alarm · evacuation notice · mandatory evacuation · evacuation drill
lockdown alertopen access
Free public scholarly content
doors open · free movement · open for business · public access · open house
lock, down, locks, locked, locking, locker, locksmith, lockout, downs