This paper extends a traditional supply chain network design problem through two perspectives, i.e., the multiperiod decision environment and the environmental concerns. A planning horizon contains multiple periods. Different periods have different demands of products and hence should have different supply chain decisions, which mainly include facilities’ locations, the environment protection level in facilities, as well as the transportation flows of products in the supply chain. For each facility in two consecutive periods, the changes of the location and environment protection level related decisions may incur adjustment cost. A bi-objective mixed-integer programming model is proposed to minimize both the total cost and the CO2 emissions of the supply chain during the planning horizon with multiple periods. A solution approach is proposed to solve the model. Numerical experiments are conducted to validate the effectiveness of the proposed model and algorithm.

中文翻译：

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多期绿色供应链网络设计的双目标模型

本文从多周期决策环境和环境问题两个角度扩展了一个传统的供应链网络设计问题。一个计划范围包含多个期间。不同时期对产品的需求不同，因此应有不同的供应链决策，主要包括设施的位置、设施的环保水平以及供应链中产品的运输流程。对于连续两个时期的每个设施，位置和环境保护水平相关决策的变化可能会产生调整成本。提出了一种双目标混合整数规划模型，以在多个时期的规划范围内最小化供应链的总成本和二氧化碳排放量。提出了一种求解方法来求解模型。数值实验验证了所提出的模型和算法的有效性。