A collection of GIS data and/or orthorectified imagery that form the background setting for a map.
shapefile
A data storage format for geospatial vector data to use in GIS software.
open space
Any open piece of land set aside for preserving natural communities, protecting water quality, providing outdoor recreation, and offering green spaces for all residents. Parcels can be undeveloped or have no buildings or other built structures, and/or is accessible to the public. Local governments can define open space differently depending on their zoning laws.
zoning
The way governments control the physical development of land and the kinds of uses to which each individual property/parcel may be put.
land use
The function of land; how is the land being used.
corridor
A linear orientation of transport routes and flows connecting important locations that act as origins, destinations or points of transshipment. They can be composed of streets, highways, transit routes, or rail lines.
brownfield
A property/parcel, of which expansion, redevelopment, or reuse may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant.
CEO
Chief Elected Official – the mayor, first selectman or chairman of the member municipalities.
RPO
Regional Planning Organization is a government body that guides the development of public and private resources in a manner that ensures public safety, well-being and livability.
EPA
United States Environmental Protection Agency
You can find more information on the EPA website.