Brownfields are best described as

a. parcels of polluted land that cannot be redeveloped safelyb. polluted land that must be remediated before being redevelopedc. land where pollution has killed all vegetation, turning it “brown”d. fields with excess organic waste and animal feces

The answer is B. In a brownfield extend the structure would should be devastated or revamped. Today, the term brownfield venture is utilized as a part of numerous businesses, including programming improvement, to intend to begin a venture in view of earlier work or to modify an item from a current one. Appear differently in relation to greenfield.

Brownfields are best described as polluted land that must be remediated before being developed. By definition is a former or commercial site that the use of it in the future is affect by real or perceived environmental contamination. It is only used for urban planning and an example would be soil contamination due to hazardous waste.

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it