signal system
Coordinated transmission arrangement
A signal system is any coordinated set of signals used to convey information or control activity.
Railroad signal systems govern train movements through lights and signs.
Traffic signal systems coordinate stoplights across intersections.
In biology, cell signaling systems transmit chemical messages.
The term emphasizes that individual signals work together as an integrated whole: The city upgraded its signal system to reduce congestion.
- trafficMovement along routes
- traffic lightRoad signal device
- railwayTrack system for trains
- controlAuthority to direct
- air traffic controlManaging aircraft separation and movement
transmission · broadcast · radio wave · network · relay · cell tower · warning · early warning · communication · semaphore · morse code · beacon · radar · circuitry · frequency · pulse · nerve impulse · alarm
- trainstrains, train, locomotive, locomotives, steam locomotive
- public transitbus, train, subway, metro, tram
- gambling cheatscard mechanic, marked cards, stacked deck, card sharp, collusion
- transitbus, subway, train, metro, light rail
- Metrosubway, metro, tube, underground, station
- Metro Systemssubway station, Paris Metro, metro line, subway line, London Underground
signal systemnoise
Unwanted auditory disturbance
static · white noise · interference · chaos · entropy
signal systemradio silence
Absence of broadcast communication
communication blackout · dead air · silence · transmission failure · darkness
signal, system, signals, signaled, signaling, signaller, signalman, signage, sign