School of Economics and Management, Tongji University, Shanghai 200092, China.
J Environ Public Health. 2022 Aug 18;2022:7117151. doi: 10.1155/2022/7117151. eCollection 2022.
As the world's population grows, resulting in the aggravating trend of aging population, it brings with it an increase in the demand for blood. Nowadays, in most cities, the blood distribution network is based on a single distribution centre pattern, with the blood centre acting as distribution centre for one-to-one distribution. However, despite its convenience, this pattern has a high frequency of delivery, increased risk of blood shortage, and generates high carbon emissions. This paper aims to understand the real-life problems of the current blood distribution network and to design a more rational blood distribution network by taking the characteristics of the blood supply chain into account. Two blood distribution network patterns are considered, the current single distribution centre pattern and the proposed multiple distribution centre pattern. In order to minimise environmental impacts, we introduce open vehicle routing problem for blood delivery routes planning, using mixed integer programming for modelling, to compare the carbon emissions between the two blood distribution network patterns. Numerical experimental results demonstrate that applying the proposed BDN can reduce carbon emissions by an average of 25.84% and up to 29.59%, and the delivery time in emergency situations is significantly reduced by an average of 33.15%. Such studies are essential for both reducing carbon emissions and safeguarding patients' lives.
随着世界人口的增长，人口老龄化趋势加剧，对血液的需求也随之增加。如今，在大多数城市，血液配送网络基于单一配送中心模式，血液中心作为一对一配送的配送中心。然而，尽管这种模式很方便，但它的配送频率高，血液短缺的风险增加，并且会产生大量的碳排放。本文旨在了解当前血液配送网络的实际问题，并考虑到血液供应链的特点，设计一个更合理的血液配送网络。考虑了两种血液配送网络模式，即当前的单一配送中心模式和提出的多配送中心模式。为了最小化环境影响，我们引入了开放车辆路径问题来规划血液配送路线，使用混合整数规划进行建模，以比较两种血液配送网络模式的碳排放。数值实验结果表明，应用所提出的 BDN 可以平均减少 25.84%，最高减少 29.59%的碳排放，并且在紧急情况下的交付时间平均减少了 33.15%。这些研究对于减少碳排放和保障患者生命都至关重要。
