I'm curious to know what you would consider "open space."
Why? Well, in the community where I work, in an area is known for its engaged, vocal, and environmentally conscious population, there's some opposition to our draft comprehensive plan, due to it not sufficiently protecting "open space". However, those opposed to the plan, and many others in the community, use the term "open space" to mean "any land that is not developed." I even receive letters in opposition to infill projects, because it would eliminate "open space".
My personal definition of "open space" doesn't mean "everything without a building", but rather:
* Public/semi-public and more accessible: parks, preserves, conservation easements, and open space tracts in subdivisions.
* Private and less accessible: land that is zoned agriculture or conservation, excluding more intensive agricultural operations (CAFO, dairy nurseries) and semi-industrial uses (mining, etc).
Questionable areas include:
* Golf courses.
* Undeveloped and unreserved/undedicated park-like portions of larger sites that have underlying zoning permitting more intensive development.
What say the Throbbing Brain? I'm interested in opinions more than cites, although it would be interesting to see if there's any differences in how the term defined or cosnidered from different sources.