Statements (51)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Traffic control device
|
| gptkbp:alsoKnownAs |
gptkb:Traffic_signal
gptkb:Stoplight Traffic lamp |
| gptkbp:canBe |
Automatically operated
Manually operated |
| gptkbp:component |
gptkb:Poles
Controller Sensors Timers Signal head |
| gptkbp:deployment |
gptkb:London
|
| gptkbp:function |
Control flow of traffic
|
| gptkbp:governedBy |
Traffic laws
|
| https://www.w3.org/2000/01/rdf-schema#label |
Traffic Light
|
| gptkbp:inventedBy |
gptkb:J._P._Knight
|
| gptkbp:location |
Pedestrian crossings
Railway crossings Intersections |
| gptkbp:maintenance |
Municipal authorities
|
| gptkbp:operatedBy |
Electricity
|
| gptkbp:powerSource |
Solar power
Electric grid |
| gptkbp:regulates |
Vehicles
Pedestrians |
| gptkbp:relatedTo |
Urban planning
Traffic congestion Pedestrian safety Road safety Intersection design |
| gptkbp:standardColorOrder |
Red-Yellow-Green
|
| gptkbp:standardizedBy |
gptkb:Vienna_Convention_on_Road_Signs_and_Signals
|
| gptkbp:symbolizes |
Green: Go
Red: Stop Yellow: Caution |
| gptkbp:usedIn |
Most countries
|
| gptkbp:uses |
Green light
Red light Yellow light |
| gptkbp:variant |
Countdown timers
Pedestrian signals Arrow signals Audible signals Bicycle signals Flashing signals Railway signals Smart traffic lights Transit signals |
| gptkbp:yearInstalled |
1868
|
| gptkbp:bfsParent |
gptkb:Lee_Mujin
|
| gptkbp:bfsLayer |
5
|