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Traffeck licht

Frae Wikipedia, the free beuk o knawledge
An LED traffeck licht in Portsmouth, Ingland

Traffeck lichts are seegnallin devices poseetioned at gate infaws, ganger crossins, an ither locations tae control flowes o traffeck.

The warld's erest traffeck licht wis a body o operatit gas licht instawed in Lunnon in December 1868. Hit flistit less nor a month efter hit wis erest uised, injurin hits polisman controller.

Traffeck lichts follae a weel-kent colour code whilk chynges the richt-o-wey accordit tae uisers wi a series o different lichts o green, lammer, an reid.