traffic lightn.

Brit.

/ˈtrafɪk lʌɪt/, U.S.

/ˈtræfɪk ˌlaɪt/

Origin: Formed within English, by compounding. Etymons: traffic n., light n.¹

Etymology: < traffic n. + light n.¹

1. A light used for the guidance of aircraft. rare.In later use probably as an extension of sense 2.

ΘΚΠ

society > travel > air or space travel > action of flying (in) aircraft > navigation of course of aircraft > [noun] > light for guidance of aircraft

traffic light1912

beacon1918

flare path1919

airway beacon1926

obstruction light1934

marker1936

fixed light1960

1912 R. Kipling in Chicago Tribune 10 Mar. (Monthly Mag.) 5/3 They began turning out traffic-lights and locking up landing-towers.

1970 Times 21 Aug. 1/3 A ‘significant’ number of ground navigational aids at Heathrow airport, London—the traffic lights that control aircraft movements to and from runways—were out of order.

2. Frequently in plural. (Each of) a set of lights (usually red, amber, and green) used for automatic control of road traffic, esp. at junctions and pedestrian crossings.

ΘΚΠ

society > travel > transport > transport or conveyance in a vehicle > vehicular traffic > [noun] > traffic control > traffic lights

traffic signal1893

traffic light1913

signal1915

light1925

robot1929

1913 Waterloo (Iowa) Evening Courier 11 Feb. 3/2 Red traffic lights will be established at two of the busiest corners in the city.

1942 Yank 29 July 8/3 We made parachute jumping safer than crossing a street against a traffic light.

1958 J. Cannan And be Villain i. 5 Pulling up for the traffic lights at the turning into the High Street.

1978 S. Wilson Dealer's Move vii. 116 There were road works ahead, with temporary traffic lights.

2005 Independent 4 Apr. (Review section) 10/1 There are plans to strip Exhibition Road in London of its safety barriers, street signs and traffic lights.

Compounds

C1. General use as a modifier (in sense 2).

ΚΠ

1931 C. B. McCullough et al. Electrical Equipm. on Movable Bridges (U.S. Dept. Agric. Techn. Bull. No. 265) 31 The traffic light circuit can be arranged to operate a relay which closes the gate circuit only when the light circuit is energized.

1968 Highway Code 44 Traffic light signals... Green means you may go on if the way is clear... Green arrow means that you may go in the direction shown by the arrow.

1996 Adv. Driving Milestones Winter 53/1 But exactly what procedure should drivers take when attempting to cross a box junction over which a ‘synchronised traffic light lock’ has developed?

2005 Metro 24 Mar. (London ed.) 5/5 Traffic light camera: Catches vehicles crossing red lights using ground sensors or radar.

C2.

a. As a modifier, designating something resembling the colours of a traffic light, esp. a system for indicating three kinds of status, degrees of danger, levels of proficiency, etc.

ΚΠ

1981 T. J. Schriber Fundamental Use Michigan Terminal System (ed. 5) iv. 17 At the Computing Center we use a ‘traffic light’ system to indicate the status of the system.

1984 Mountain Res. & Devel. 4 254/2 The ‘traffic light’ colour scheme is used in general for differentiation of slope hazards.

1989 Economist 28 Oct. (West Germany Suppl.) 20/2 A so-called ‘traffic light’ coalition between reds, greens and yellows (liberals).

2001 School Sci. Rev. Sept. 45/1 Following the explanation, each of the other students then gives the speaker a ‘traffic light’ mark.

2018 Financial Times (Nexis) 27 July 2 According to the government's socalled traffic light assessment system for big infrastructure projects, HS2 has received an ‘amber/red’ rating by the authority for each of the past six years, meaning there is a ‘high risk’ of it not delivering value for money.

b. spec. As a modifier, designating a system of food labelling used in some European countries indicating the amount of fat, saturated fat, sugar, and salt in every product, using green for low, amber for medium, and red for high percentages of these substances.

ΚΠ

1984 Times 18 Apr. 4/3 Food labelling ‘should be improved as a matter of urgency’ with, for example, a ‘traffic light’ system showing high, medium or low fat in brands of sausages.

2006 Independent 10 Mar. 21 (headline) Supermarkets refuse to adopt ‘traffic light’ labels.

2017 Design Week (Online ed.) 27 Mar. The reduction [in sugar content] moves Honey Monster Puffs from red to amber in the traffic light coding system used on food packaging.

This entry has been updated (OED Third Edition, December 2020; most recently modified version published online March 2022).

单词	traffic light
释义	traffic lightn. Brit. /ˈtrafɪk lʌɪt/, U.S. /ˈtræfɪk ˌlaɪt/ Origin: Formed within English, by compounding. Etymons: traffic n., light n.¹ Etymology: < traffic n. + light n.¹ 1. A light used for the guidance of aircraft. rare.In later use probably as an extension of sense 2. ΘΚΠ society > travel > air or space travel > action of flying (in) aircraft > navigation of course of aircraft > [noun] > light for guidance of aircraft traffic light1912 beacon1918 flare path1919 airway beacon1926 obstruction light1934 marker1936 fixed light1960 1912 R. Kipling in Chicago Tribune 10 Mar. (Monthly Mag.) 5/3 They began turning out traffic-lights and locking up landing-towers. 1970 Times 21 Aug. 1/3 A ‘significant’ number of ground navigational aids at Heathrow airport, London—the traffic lights that control aircraft movements to and from runways—were out of order. 2. Frequently in plural. (Each of) a set of lights (usually red, amber, and green) used for automatic control of road traffic, esp. at junctions and pedestrian crossings. ΘΚΠ society > travel > transport > transport or conveyance in a vehicle > vehicular traffic > [noun] > traffic control > traffic lights traffic signal1893 traffic light1913 signal1915 light1925 robot1929 1913 Waterloo (Iowa) Evening Courier 11 Feb. 3/2 Red traffic lights will be established at two of the busiest corners in the city. 1942 Yank 29 July 8/3 We made parachute jumping safer than crossing a street against a traffic light. 1958 J. Cannan And be Villain i. 5 Pulling up for the traffic lights at the turning into the High Street. 1978 S. Wilson Dealer's Move vii. 116 There were road works ahead, with temporary traffic lights. 2005 Independent 4 Apr. (Review section) 10/1 There are plans to strip Exhibition Road in London of its safety barriers, street signs and traffic lights. Compounds C1. General use as a modifier (in sense 2). ΚΠ 1931 C. B. McCullough et al. Electrical Equipm. on Movable Bridges (U.S. Dept. Agric. Techn. Bull. No. 265) 31 The traffic light circuit can be arranged to operate a relay which closes the gate circuit only when the light circuit is energized. 1968 Highway Code 44 Traffic light signals... Green means you may go on if the way is clear... Green arrow means that you may go in the direction shown by the arrow. 1996 Adv. Driving Milestones Winter 53/1 But exactly what procedure should drivers take when attempting to cross a box junction over which a ‘synchronised traffic light lock’ has developed? 2005 Metro 24 Mar. (London ed.) 5/5 Traffic light camera: Catches vehicles crossing red lights using ground sensors or radar. C2. a. As a modifier, designating something resembling the colours of a traffic light, esp. a system for indicating three kinds of status, degrees of danger, levels of proficiency, etc. ΚΠ 1981 T. J. Schriber Fundamental Use Michigan Terminal System (ed. 5) iv. 17 At the Computing Center we use a ‘traffic light’ system to indicate the status of the system. 1984 Mountain Res. & Devel. 4 254/2 The ‘traffic light’ colour scheme is used in general for differentiation of slope hazards. 1989 Economist 28 Oct. (West Germany Suppl.) 20/2 A so-called ‘traffic light’ coalition between reds, greens and yellows (liberals). 2001 School Sci. Rev. Sept. 45/1 Following the explanation, each of the other students then gives the speaker a ‘traffic light’ mark. 2018 Financial Times (Nexis) 27 July 2 According to the government's socalled traffic light assessment system for big infrastructure projects, HS2 has received an ‘amber/red’ rating by the authority for each of the past six years, meaning there is a ‘high risk’ of it not delivering value for money. b. spec. As a modifier, designating a system of food labelling used in some European countries indicating the amount of fat, saturated fat, sugar, and salt in every product, using green for low, amber for medium, and red for high percentages of these substances. ΚΠ 1984 Times 18 Apr. 4/3 Food labelling ‘should be improved as a matter of urgency’ with, for example, a ‘traffic light’ system showing high, medium or low fat in brands of sausages. 2006 Independent 10 Mar. 21 (headline) Supermarkets refuse to adopt ‘traffic light’ labels. 2017 Design Week (Online ed.) 27 Mar. The reduction [in sugar content] moves Honey Monster Puffs from red to amber in the traffic light coding system used on food packaging. This entry has been updated (OED Third Edition, December 2020; most recently modified version published online March 2022). < n.1912
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