signalman
Railway switch operator
A signalman operates signals—devices that convey information visually or by light.
In railroads, signalmen control track switches and signals directing train movements.
In military contexts, a signalman transmits messages using flags, lights, or semaphore: The signalman on deck flagged the approaching vessel.
The work requires vigilance and precision.
Circuit opening devices
- trackPath or monitored route
- junctionPoint where things meet
- locomotiveRailway pulling machine
- trainRail vehicle or instruct
semaphore · dispatcher · platform · station · crossing · points · interlocking · timetable
Flag-based signaling system
- flagsSymbolic national cloths
- heliographSunlight-based signaling device
- lampElectric light fixture
- radioElectromagnetic wave receiver
transmitter · receiver · dispatch · reconnaissance · observation · communications · battalion · regiment
switches
Circuit opening devices
- trackPath or monitored route
- junctionPoint where things meet
- locomotiveRailway pulling machine
train · semaphore · dispatcher · platform · station · crossing · points · interlocking · timetable · lantern
semaphore
Flag-based signaling system
- flagsSymbolic national cloths
- heliographSunlight-based signaling device
- lampElectric light fixture
radio · transmitter · receiver · dispatch · reconnaissance · observation · communications · battalion · regiment · corps
semaphore
Flag-based signaling system
ship · fleet · convoy · ensign · pennant · hoist · halyard · watch · lookout · deck
cap
Covering for top
armband · vest · high-visibility · overalls · jacket · gloves · pocket-watch · uniform · greatcoat · boots
- military termsarmy, navy, air force, marines, soldier
- military personnelsoldiers, soldier, midshipmen, officers, troops
- seafarerssailor, seaman, mariner, able seaman, merchant seaman
- ship crewsailor, seaman, crewman, deckhand, first mate
- soldiersinfantryman, private, grenadier, grenadiers, fusilier
- transit workersbus driver, subway operator, train conductor, train driver, train operator