Yan Bing, Yu Liying, Wang Jing
School of Urban Railway Transportation, Shanghai University of Engineering Science, Shanghai 201620, China.
School of Management, Shanghai University, Shanghai 200444, China.
Entropy (Basel). 2020 Jul 7;22(7):750. doi: 10.3390/e22070750.
The purpose of this study is to evaluate the sustainable operation of rail transit system. In rail transit system, as the most important aspect of negative entropy flow, the effective strategy can offset the increasing entropy of the system and make it have the characteristics of dissipative structure, so as to realize the sustainable operation. At first, this study constructs the Pressure-State-Response (PSR) model to evaluate the sustainable operation of rail transit system. In this PSR model, "pressure" is viewed as customer requirements, which answers the reasons for such changes in rail transit system; "state" refers to the state and environment of system activities, which can be described as the challenges of coping with system pressure; "response" describes the system's actions to address the challenges posed by customer needs, namely operational strategies. Moreover, then, 13 pressure indices, five state indices and 11 response indices are summarized. In addition, based on quality function deployment (QFD), with 13 pressure indices as input variables, five state indices as customer requirements (CRs) of QFD and 11 response indices as technical attributes (TAs) of QFD, this study proposed the three-phase evaluation method of the sustainable operation of rail transit system to obtain the operational strategy (that is, negative entropy flow): The first phase is to verify that 13 pressure indices can be clustered into five state indices by fuzzy clustering analysis; The second phase is to get the weights of five state indices by evidential reasoning; The third phase is to rate the importance of 11 response indices by integrating fuzzy weighted average and expected value operator. Finally, the proposed model and method of evaluation are applied to the empirical analysis of Shanghai rail transit system. Finally, we come to the conclusion that Shanghai rail transit system should take priority from the following five aspects: "advancement of design standards", "reliability of subway facilities", "completeness of operational rules", "standardization of management operation" and "rationality of passenger flow control".
本研究旨在评估轨道交通系统的可持续运营。在轨道交通系统中，作为负熵流最重要的方面，有效的策略可以抵消系统不断增加的熵，并使其具有耗散结构的特征，从而实现可持续运营。首先，本研究构建压力-状态-响应（PSR）模型来评估轨道交通系统的可持续运营。在这个PSR模型中，“压力”被视为客户需求，它回答了轨道交通系统发生此类变化的原因；“状态”指系统活动的状态和环境，可描述为应对系统压力的挑战；“响应”描述了系统应对客户需求所带来挑战的行动，即运营策略。此外，总结出了13个压力指标、5个状态指标和11个响应指标。另外，基于质量功能展开（QFD），以13个压力指标作为输入变量，5个状态指标作为QFD的客户需求（CRs），11个响应指标作为QFD的技术属性（TAs），本研究提出了轨道交通系统可持续运营的三阶段评估方法以获得运营策略（即负熵流）：第一阶段是通过模糊聚类分析验证13个压力指标可聚类为5个状态指标；第二阶段是通过证据推理得到5个状态指标的权重；第三阶段是通过整合模糊加权平均和期望值算子对11个响应指标的重要性进行评分。最后，将所提出的评估模型和方法应用于上海轨道交通系统的实证分析。最后得出结论，上海轨道交通系统应从以下五个方面优先考虑：“设计标准的先进性”、“地铁设施的可靠性”、“运营规则的完整性”、“管理运营的规范化”和“客流控制的合理性”。
Zotero 插件