[Land use map showing "Open Space and Recreation" courtesy of New York City Department of City Planning]
According to the Department of City Planning, New York City occupies 305 square miles of land. The DCP’s Land Use Facts say that NYC is:

42.2% Residential ["Low-density residences and medium- to high-density residential buildings (three or more dwelling units)"]

25.2% Open Space and Recreation (“public parks, playgrounds and nature preserves, cemeteries, amusement areas, beaches, stadiums and golf courses”)

7.4% Transportation / Utility (“airports, ferry terminals, train yards, sewage treatment facilities and power plants”)

7.3% Public Facilities / Institutions (“schools, hospitals and nursing homes, museums and performance centers, houses of worship, police stations and fire houses, courts and detention centers”)

7.1% Vacant Land

3.9% Commercial (“the office towers of Manhattan and the regional business districts of downtown Brooklyn, Long Island City, Jamaica, and the Hub, to the local shopping corridors)

3.6% Industrial / Manufacturing (“the warehouses and factories found primarily in the South Bronx, along either side of Newtown Creek in Brooklyn and Queens, and along the western shores of Brooklyn and Staten Island”)

1.9% Miscellaneous

1.3% Parking (“public and private off-street lots and free-standing garages that are not accessory to residential or commercial buildings”)

So, where do streets and sidewalks fit in? And how would the DCP’s profile of NYC land use shift if you assigned a percentage to streets and sidewalks? With the news of the transformation of Broadway in Times Square and DOT’s World Class Streets report and subsequent actions, I wonder just how much of our city is between the curbs.