AJOR  Vol.1 No.3 , September 2011
Vertical Decomposition Approach to Solve Single Stage Capacitated Warehouse Location Problem (SSCWLP)
ABSTRACT
Single Stage Capacitated Warehouse Location Problem (SSCWLP) has been attempted by few researchers in the past. These are Geoffrion and Graves [1], Sharma [2], Sharma [3] and Sharma and Berry [4]. In this paper we give a “vertical decomposition” approach to solve SSCWLP that uses Lagrangian relaxation. This way SSCWLP is broken into two versions of capacitated plant location problem (the CPLP_L and CPLP_R) by relaxing the flow balance constraints. For CPLP_R, we use well known Lagrangian relaxations given in literature (Christofides and Beasley [5] and Nauss [6]); and adopt them suitably for solving CPLP_L. We show theoretically in this paper that SSCWLP can be more efficiently solved by techniques of vertical decomposition developed in this paper than the method available in literature (Sharma and Berry [4]). Encouraging computational study is reported in this paper.

Cite this paper
nullP. Verma and R. Sharma, "Vertical Decomposition Approach to Solve Single Stage Capacitated Warehouse Location Problem (SSCWLP)," American Journal of Operations Research, Vol. 1 No. 3, 2011, pp. 100-117. doi: 10.4236/ajor.2011.13013.
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