traffic light

Summary

traffic light is an appliance^[1]. It ranks in the top 3% of appliance entities by monthly Wikipedia readership (2,074 views/month).^[2]

Key Facts

• traffic light is credited with the discovery of J. P. Knight^[3].
• traffic light is the creator of J. P. Knight^[4].
• traffic light's instance of is recorded as appliance^[5].
• traffic light is a type of road traffic control device^[6].
• traffic light is a type of light source^[7].
• traffic light is a type of physical sign^[8].
• traffic light is a type of road equipment^[9].
• traffic light is part of transport infrastructure^[10].
• traffic light's Commons category is recorded as Traffic signals^[11].
• traffic light's Unicode character is recorded as 🚦^[12].
• traffic light's Unicode character is recorded as 🚥^[13].
• 1868 marks the founding of traffic light^[14].
• traffic light's topic's main category is recorded as Category:Traffic signals^[15].
• traffic light's Commons gallery is recorded as Traffic lights^[16].
• traffic light's location of creation is recorded as London^[17].
• traffic light's OpenStreetMap tag is recorded as highway=traffic_signals^[18].
• traffic light's OpenStreetMap tag is recorded as traffic_signals=traffic_light^[19].
• traffic light's described by source is recorded as Armenian Soviet Encyclopedia, vol. 4^[20].
• traffic light's different from is recorded as Semaphore^[21].
• traffic light's different from is recorded as Q18713308^[22].
• traffic light's history of topic is recorded as history of traffic lights^[23].
• traffic light's exact match is recorded as http://wordnet-rdf.princeton.edu/wn30/06874185-n^[24].

Body

Geography

traffic light is part of transport infrastructure^[10].

Designation and Status

traffic light's instance of is recorded as appliance^[5].

History and Context

1868 marks the founding of traffic light^[14].

Why It Matters

traffic light ranks in the top 3% of appliance entities by monthly Wikipedia readership (2,074 views/month).^[2] It has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[25] It is known by 58 alternative names across languages and contexts.^[26]