It was actually part of government-mandated standards when selecting architectural plans for new neighbourhoods - they had rates for expected amounts of children of various age to size nursery, kindergarten, schools of all levels, etc., had to calculate in healthcare locations, kid playgrounds, minimal distances between buildings, availability of shops, etc.
All of that was of course for greenfield neighbourhoods, though some work went into maintaining such standards in brownfield locations as well.
All of that was of course for greenfield neighbourhoods, though some work went into maintaining such standards in brownfield locations as well.