Answer: two or more stores are situated together or in close proximity
Explanation: In simple words, an unplanned business district refers to an area where multiple stores are opened by individuals without any collective planning of establishing a market altogether.
Usually this is a place where all the commercial transactions of a town or a district takes place. In other markets, it is the main market arena of a specified area.
Generally customer turnover is very high in such areas as there are several stores from which a rational customer can find all commodities he or she needs.
