So if the annual average daily traffic flow on a given four lane wide street is, e.g., 8,000 cars a day and two lanes are made into bicycle lanes and 500 elderly and other motorists decide to bicycle to work in the sun, rain or snow, then about 7,500 cars share two lanes while 500 bicycles [[ I am being charitable) share the other two lanes. Sounds like a great idea from a sophomore urban planning class...and everybody will be .
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