public open space means the securing of an area of a site at grade or street level which is acceptable to the City and is appropriately landscaped for the use and enjoyment of the public during reasonable hours.
Escalator means a power driven, inclined, continuous stairway used for raising or lowering passengers.
Open space means undeveloped land, a naturally landscaped area, or a formal or man-made landscaped area that provides a connective link or a buffer between other resources.
Public building and "public work" means a public building of, and a public work of, a governmental entity (the United States; the District of Columbia; commonwealths, territories, and minor outlying islands of the United States; State and local governments; and multi-State, regional, or interstate entities which have governmental functions). These buildings and works may include, without limitation, bridges, dams, plants, highways, parkways, streets, subways, tunnels, sewers, mains, power lines, pumping stations, heavy generators, railways, airports, terminals, docks, piers, wharves, ways, lighthouses, buoys, jetties, breakwaters, levees, and canals, and the construction, alteration, maintenance, or repair of such buildings and works.