9-a. 21-2181 The City of Ann Arbor is Beginning an Update to the Parks and Recreation Open Space Plan (PROS Plan). The Plan is an element of the City's master plan and the City's vision for parks and recreation in Ann Arbor. The Plan provides an inventory of existing parks and facilities, describes the relationship between the Parks and Recreation system and surrounding municipalities and recreational providers, identifies parks and recreation needs and deficiencies, and proposes major capital park projects for existing and new parks. The document was last updated in 2017.