What is the meaning of Traffic_light?

A signalling device positioned at a road intersection or pedestrian crossing to indicate when it may be safe to drive, ride or walk, using a universal colour code.

  1. A road intersection controlled by one or more such devices.

    A road intersection controlled by one or more such devices.

    A colour code using the three signals of a traffic light (green, yellow/amber, and red) as a metaphor.

    The coloured dots on stamp sheet margins printed with offset litho or photogravure methods, used by the printers to check colour accuracy.

    Source: wiktionary.org