Who looks after the courtyard green?
Having many decentralized small parks instead of one centralized neighbourhood park, would be difficult to maintain, is one of the objections we often receive, but no as yet from park managers themselves.
In Malaysian cities and big towns, one department would look after parks, another one would look after roads. One department will look after the soft and hard landscaping in the parks, including cutting the grass. The road department will maintain and clean the roads including looking after the landscaping and cutting the grass on the side table (or sidewalk).
There is no problem with maintaining the courtyards when you think of it as something which is being done by the road department. After all they are just small pockets of green in the middle of the looping cul-de-sacs, just as easy to maintain as the side-tsble or sidewalks.