Unused land in a non-metropolitan area

The issue of 'waste land' is a nebulous one. The Government recognises a problem with 'derelict land' and has given legislative and financial support to its concern. Similarly, the inner areas of 'metropolitan' cities have been found to contain large areas of land in an unused state, and consequently, Government has directed considerable finance towards their improvement. But when is land 'waste'? What factors contribute to a state of 'wastage' in land? Is 'waste land' the same as 'unused land'? [Continues.]