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gptkbp:instanceOf
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gptkb:Traffic_control_device
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gptkbp:alsoKnownAs
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gptkb:Traffic_signal
gptkb:Stoplight
Traffic lamp
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gptkbp:colorOrder
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Red-Yellow-Green
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gptkbp:component
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Green light
Red light
Yellow light
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gptkbp:deployment
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gptkb:London
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gptkbp:featuredIn
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gptkb:infrastructure
Public education
Road safety campaigns
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gptkbp:function
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Control flow of traffic
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gptkbp:greenLightMeaning
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gptkb:Go
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gptkbp:inventedBy
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gptkb:J.P._Knight
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gptkbp:maintenance
|
Municipal authorities
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gptkbp:modernTechnology
|
LED lights
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gptkbp:operatedBy
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Automatic control
Manual control
|
|
gptkbp:powerSource
|
gptkb:Electricity
|
|
gptkbp:previousTechnology
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Incandescent bulbs
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gptkbp:redLightMeaning
|
Stop
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gptkbp:regulates
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Traffic laws
|
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gptkbp:standardizedBy
|
gptkb:Vienna_Convention_on_Road_Signs_and_Signals
|
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gptkbp:subjectOf
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Urban planning
Traffic engineering
Autonomous vehicle navigation
Human factors research
Signal timing optimization
Smart city technology
|
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gptkbp:symbolizes
|
gptkb:legislation
gptkb:state_order
Safety
|
|
gptkbp:usedIn
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Pedestrian crossings
Railway crossings
Road intersections
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|
gptkbp:variant
|
Countdown timers
Pedestrian signals
Arrow signals
Audible signals
Bicycle signals
Emergency vehicle preemption
Flashing signals
Railway signals
Transit signals
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gptkbp:yearInstalled
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1868
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gptkbp:yellowLightMeaning
|
Caution
|
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gptkbp:bfsParent
|
gptkb:Stoplight
|
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gptkbp:bfsLayer
|
6
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https://www.w3.org/2000/01/rdf-schema#label
|
Traffic light
|