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Edinburgh has roughly 300 traffic junctions of which about 50 are junctions where the green man comes on automatically. In the jargon this is known as "walk with". It is usually where a one-way street connects with another road. The green man comes on whenever the red traffic light shows. At night this might change but during busy times the system is automated.
In Manchester, around 40% of the push buttons don't need to be pressed during busy pedestrian times. "This is made up of those pedestrian green men that are 'walk-with-traffic', and those set remotely on a timer from our central computer," a Transport for Greater Manchester spokeswoman says. "The times vary depending on the junction but the maximum wait time is 60 seconds."
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