With more investigation on the site, I understand more. Below is District Gentilly with Donnelly Park inside.
Gentilly, also called District 6, is a large community with many small neighborhoods, most of which were built in the mid twentieth century. It is said that the area is often considered as a microcosm of New Orleans.
This district was heavily damaged during Hurricane Katrina. Afterwards, some firms made reconstructing plans for the area. Here is the plan for Gentilly by DPZ. It might be helpful.
In addition, Donnelly Park will be used as the community playground and the community calls Burbank Gardens. It is larger than the service radius of Donnelly Park I thought before; thus more elements need to be considered.