Solving a Public Sector Sustainable Supply Chain Problem: A Genetic Algorithm Approach
نویسندگان
چکیده
This paper addresses a sustainable supply chain network design problem that arises in the public sector. There is little research being done in mathematical modeling and solutions methods for these problems. The paper describes a mixed-integer 0-1 model (MIP) for solving this sustainable problem in which we have to determine a fixed number of facilities to be located at sites chosen from among a given set of candidate sites. Sustainable issues are integrated into the model by reducing the greenhouse gas emissions produced by the transportation and the operation of the facilities. We propose a hybrid genetic algorithm (GA) for solving this problem by introducing a greedy-like procedure during the feasibility phase. In order to validate our GA solutions we used GAMS to obtain optimal objective values on the MIP. We report computational results for instances generated from a known OR test library.
منابع مشابه
A GA for Solving a Type of Sustainable Supply Chain Design Problem
We propose a hybrid genetic algorithm (GA) for solving a sustainable supply chain design problem that arises in the public sector. There is little research being done in mathematical modeling and solutions methods for these problems. The paper describes a mixed-integer 0-1 model (MIP) for this sustainable problem in which we have to determine in a network of two layers the number of facilities ...
متن کاملA Basic Period Approach for Solving the Economic Lot and Delivery Scheduling in Flexible Flow Lines
In this paper, the problem of lot sizing, scheduling and delivery of several items in a two-stage supply chain over a finite planning horizon is studied. Single supplier via a flexible flow line production system (FFL), produces several items and delivers them directly to an assembly facility. Based on basic period (BP) strategy, a new mixed zero-one nonlinear programming model has been develop...
متن کاملSolving a Multi-Item Supply Chain Network Problem by Three Meta-heuristic Algorithms
The supply chain network design not only assists organizations production process (e.g.,plan, control and execute a product’s flow) but also ensure what is the growing need for companies in a longterm. This paper develops a three-echelon supply chain network problem including multiple plants, multiple distributors, and multiple retailers with amulti-mode demand satisfaction policy inside of pro...
متن کاملA multi-objective evolutionary approach for integrated production-distribution planning problem in a supply chain network
Integrated production-distribution planning (PDP) is one of the most important approaches in supply chain networks. We consider a supply chain network (SCN) to consist of multi suppliers, plants, distribution centers (DCs), and retailers. A bi-objective mixed integer linear programming model for integrating production-distribution designed here aim to simultaneously minimize total net costs in ...
متن کاملMathematical Formulation and Solving of Green Closed-loop Supply Chain Planning Problem with Production, Distribution and Transportation Reliability
In this paper, developed a new multi-product, multi-period, and multi-level closed-loop green supply chain planning model under uncertain conditions. The formulated model consists of five objective functions, which minimize the cost of the supply chain, minimize the CO2 emission of transportation vehicles, maximize the reliability of manufacturing and distribution centers, maximize t...
متن کامل