The BBC says the idea of Play Streets started "in 2009" but I'm pretty certain there was a Corrie plot before I was born where the residents were up in arms at plans to make the street one, and there was definitely one in Anfield in the 1990s www.bbc.co.uk/news/article...

Leeds: The city closing down streets so children can playIn Leeds, streets are being temporarily closed to traffic so kids have more space to safely play - an initiative proving beneficial to both children and adults.www.bbc.co.uk