proximity alert
Collision avoidance signal
A proximity alert is a warning triggered when objects come within a specified distance of each other.
The term originates in aviation and maritime contexts, where systems detect nearby aircraft or vessels to prevent collisions.
It extends to any automated warning based on physical closeness: My phone's proximity alert went off when I got near the store.
In science fiction, proximity alerts warn of approaching spacecraft or threats.
- warningAlert about danger
- early warningAlert before event occurs
- collision coursePath toward inevitable impact
- radarRadio-wave object detection
- sensorInput-detecting device
air traffic control · beep · alarm · distance · approaching · spacecraft · docking · detection · motion detector · sonar · cockpit · heads up display · red · red light · flashing · imminent · boundary · perimeter
- safety systemsparachute, airbag, airbags, ejection seat, brakes
- ship alarmsmayday, SOS, man overboard, abandon ship, fire alarm
proximity alertcollision
Forceful contact between objects
impact · midair collision · crash · fender bender · accident
proximity, alert, proximate, proximal, approximate, approximately, approximation, alerts, alerted