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[Video] Australia's pedestrian buttons (design)
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vk3yedotcom:

Short video on Australia's world-leading design of pedestrian buttons.

Mentions Louis Challis, leading acoustic engineer.

Halcyon:
I'd love to see a tear down of one of these. I'm sure no expense has been spared when it comes to longevity. They are extremely robust with many having been in service for decades.
Towger:
The Dublin traffic control system is the same as the Sidney one. Hence our traffic is just as bad!  Anyway, a few years again some councilors decided the PB5 traffic lights were too noisy, so got the sound/vibration turned off on the buttons.  Needless to say there was total uproar and a couple of weeks later they were turned back on.
floobydust:
I wonder what the button mechanical is like. Here, rain or melting snow gets in and ice-jack as it freezes.  With that big pushbutton, it's gonna direct water in there.
SeanB:
They are also used here in Durban South Africa. Sadly they are not exactly the most vandal proof item around, as many of the hundreds installed no longer work, and as the traffic signal maintenance is not exactly done by the brightest, many are faulty, never repaired and non functional. The intelligence is in a die cast box typically mounted higher up the pole, and then led down inside via a few cable cores to the signal, and they are powered by the traffic controller, I would guess using the 230VAC used to drive the pedestrian crossing lamps, as typically there are no spare wires in the cable bundles used to interface between the controller and the pedestrian push buttons.
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