school run


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school run ‎(uncountable)

  1. increased traffic due to the number of parents taking or collecting their children to and from school by car.
    • 2006 April 30, Cole Moreton, “The school run”, in The Independent[1]:
      A billion trips are made on the school run every year and, between us, parents produce two million extra tons of the greenhouse gas carbon dioxide, a cause of global warming.