Events
First traffic signals installed in London, UKFirst 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
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