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Traffic signals history
Создана
cse
⟶ Обновлено 9 дек 2019 ⟶
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First traffic signals installed in London, UK
First three-coloured light signals in New York. Police operated.
First three-coloured light signals in England. Police operated.
First fixed time signals in USA using vehicle-actuated detector. Adopted soon after by England and Melbourne.
First traffic-actuated non-fixed time signals in Sydney, Australia.
1000 traffic signals installed in NSW
~2400 traffic signals installed in NSW ~1700 controlled by SCATS
