This shift along with the overall trend away from heavy industry and other types of manufacturing have left many old industrial areas idle, underutilized or completely abandoned.
The General Accounting Office estimates that between 130,000 and 425,000 Brownfield sites exist nationwide. (David.R. Allardice, 1995) (1) In fact, many sites are not in the real estate market adds to the difficulty of quantifying them. As the economic decline of cities gain national interest, the federal, state and local governments are began some initiative process by examining policies with regard to analyze the barriers and incentives for redevelopment of Brownfield sites and developing strategies to address these impediments. But in fact, these implementations turns into an impinge on other factors like social- Those associated with benefiting low income and minority populations, Environmental - Those related to human health and environmental benefits and economical- Those affecting the generation of business, tax revenues, ad jobs positively. (US EPA 2006) Brownfield land gained political significance after
The study shows that the allocation of such idle land for reconstructing stimulates social, economic and environmental factors. In this context, a study on the benefits/merits of Brownfield redevelopment may help better evolution of this area .Before threshold in to this, an overlook on the meaning of this aspect, the general framework and criteria for identifying Brownfield site redevelopment opportunities and developing strategies for successful Brownfield redevelopment etc. can be outlined.
In narrow sense, we can say a 'Brownfield' land is an area of land or premises that has been previously used, but has subsequently become vacant, derelict or contaminated. In broad sense these are the sites which found in cities and towns across the country, are abandoned, vacant, derelict, or underutilized commercial and industrial properties where past actions have resulted in actual or perceived contamination and typically require preparatory regenerative work before any new development goes ahead, and can also be partly occupied.