Time – Ton – Mile – Center Solution: it includes all factors influenced by cost. Costs are a function of time weight and distance. The warehouse site derived as a product of this solution is a least cost location. The procedure for selecting the solution is iterative because time and distance factors are differentiated from a given ware house location.
Xk,Yk= unknown co-ordinate value of a warehouse
Fi= annual tonnage to each location expressed as a standard trailers, identified by the appropriate subscript.
Mi= delivery location differentiated in terms of miles per minute from the initial warehouse location to each new location until the iterative process is complete.
Mi considers both distance and time to all demand points from the warehouse location for each iteration.
Mi=dn =distance
tn time
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