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     Keith Sansum1 wrote:

    It was predicted areas would at times become gridlocked with the amount of cars coming onto the roads increasing


    BUT modelling traffic flow mathematically you will discover that roughly 20 mph (or 30 kph - it's helpful to keep to round figures on traffic signs) ) traffic speed will allow the maximum flow of vehicles down a road. (Depending on length of vehicle this maxes out at roughly 1800 cars per hour).

    Counterintuitively a 20 mph limit on busy roads will mean more traffic will get to a destination quicker - as well as having fewer collisions and injuries/deaths.

    What's not to like?

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