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traffic light

traffic light

4 2.7
A red, yellow and green sign on a report or screen that shows a project's status
  • noun
  • /ˈtræfɪk laɪt/
translation icon : semáforo
  • He's persisting with a traffic light system that doesn't work and won't stop other variants coming in.

NIMCO offered the following traffic light strategy to rein in the chatter.

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Examples

  • Give them an overall score and a traffic light ranking (green, yellow, red).

    Blog text (26)
  • Nimco offered the following traffic light strategy to rein in the chatter.

  • Oh, and then this funny little traffic light goes on top of that.

  • I don't see streets and traffic lights and cars.

  • NIMCO offered the following traffic light strategy to rein in the chatter.

  • Agency has just announced a new traffic light-based food labeling system which you can read about here, but the article also looks at a great system, in my opinion, which rates food on its foodness.

    Blog text (26)
  • In the meantime, Whole Foods has implemented its own new traffic light labeling scheme, but without those pesky red symbols well established to discourage sales.

    Blog text (26)
  • According to a recent survey from market research company Canadean, nearly three-quarters of UK consumers (73%) support a universal labeling system, while 32% say they prefer to buy foods that carry a traffic light label.

    Blog text (5)
  • The project manager included a traffic light indicator to show the project's progress.

  • Each department received a traffic light report to assess their performance on key metrics.

Synonyms

stoplight
vstraffic light
  • US
18 1.6

A set of red, yellow and green lights that control traffic at intersections

is used as a color status indicator on dashboards and reports
traffic signal
vstraffic light
8 1.4

A system of colored lights where roads meet that tells cars and people when to go

is a color coded dashboard indicator showing project or system status

How Healthy

green light
46 2.3
traffic light
4 2.7
amber light
  • UK
1 3.2
red light
2 1.7

Surface Forms

traffic light singular

Morphology

traffic + light

The dashboard sense is directly derived from the literal device 'traffic light' (a light that controls traffic) and the widely shared color-coding convention (green/yellow/red = go/warn/stop). A B1 learner who knows 'traffic' and 'light' can readily infer the metaphorical use as a color-coded indicator by analogy to the road signal, so the expression is compositionally transparent.

Etymology

The noun traffic light is also used for reports because people borrowed the clear color idea from road lights: green for 'go', yellow for 'caution', and red for 'stop'. So a small green/yellow/red sign on a dashboard shows a project's health and is called a 'traffic light'.