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A comment on Ambulances will trigger green signal.

Re:Ambulances will trigger green signal by madeofpalk on Thursday May 28, 2015 @08:31AM (#9617646)
The traffic lights in Sydney are managed in a way to give priority to late-running public transport.

I was impressed to find out the traffic light system in Sydney, Australia (Sydney Coordinated Adaptive Traffic System - http://en.wikipedia.org/wiki/Sydney_Coordinated_Adaptive_Tra...) has been exported around the world to cities such as Singapore, Dublin and Hong Kong.

Interestingly enough,

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Re:Ambulances will trigger green signal by winsome on Thursday May 28, 2015 @10:02AM (#9618179)
SCATS is also used more than you might imagine in some US areas. SCOOT (http://www.scoot-utc.com/HowSCOOTWorks.php) is a similar system used in a lot of locations too.
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Re:Ambulances will trigger green signal by JshWright on Thursday May 28, 2015 @04:04PM (#9620794)
Those are some fantastic acronyms...
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