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A risk assessment based optimization method for route selection of hazardous liquid railway network

机译:基于风险评估的危险液体铁路网络路径选择优化方法

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摘要

Route selection is the first and significant step for hazardous liquid railway network design project. Not only the economy, but the safety factors need to be considered for making a comprehensive analysis and determining an appropriate design plan. However, the railway network route selection is a complex multi-objective decision problem. Considering the construction cost and safety factors of hazardous liquid railway, this paper proposed a multi-objective optimization model. Considering the impact metrics, air pollution, river pollution, soil-underground water pollution, sensitive area and emergency system, a comprehensive risk assessment model was further built. The weight of each metric was decided by expert scoring. Based on index pricing method, risk factors were considered into maintenance and operation cost. Aiming at the strong non-linearity, a three-stage method was adopted to solve the problem. A virtual case and a real case with two refineries as sources and two terminals in midwestem China were studied in this paper. The construction schemes of hazardous liquid railway network in the study region were obtained by using the proposed method with considering the complex geographical and social environment. The effect of algorithm parameters on model was discussed in paper. Due to the high subjectivity of the emergency system score, the sensitivity of which was further analyzed. The practicality of the proposed method was verified through the case study.
机译:路径选择是危险液体铁路网络设计项目的第一步和重要的步骤。不仅经济,而且需要考虑安全因素,以便进行全面的分析和确定适当的设计计划。然而,铁路网络路线选择是复杂的多目标决策问题。考虑到危险液铁路的施工成本和安全因素,本文提出了一种多目标优化模型。考虑到影响指标,空气污染,河流污染,土壤地下水污染,敏感区和应急系统,进一步建立了全面的风险评估模型。每个指标的重量由专家评分决定。基于指数定价方法,危险因素被视为维护和运营成本。针对强烈的非线性,采用了一种三阶段方法来解决问题。本文研究了一个虚拟案例和两个炼油厂的实际案例,以及中国中美州中源的两个终端。考虑到复杂地理环境和社会环境,获得了研究区危险液体铁路网络的施工方案。纸张讨论了算法参数对模型的影响。由于紧急系统得分的高主观性,进一步分析了其敏感性。通过案例研究证实了所提出的方法的实用性。

著录项

  • 来源
    《Safety science》 |2018年第2期|共13页
  • 作者单位

    China Univ Petr Natl Engn Lab Pipeline Safety Beijing Key Lab Urban Oil &

    Gas Distribut Technol Fuxue Rd 18 Beijing 102249 Peoples R China;

    China Univ Petr Natl Engn Lab Pipeline Safety Beijing Key Lab Urban Oil &

    Gas Distribut Technol Fuxue Rd 18 Beijing 102249 Peoples R China;

    China Univ Petr Natl Engn Lab Pipeline Safety Beijing Key Lab Urban Oil &

    Gas Distribut Technol Fuxue Rd 18 Beijing 102249 Peoples R China;

    China Univ Petr Natl Engn Lab Pipeline Safety Beijing Key Lab Urban Oil &

    Gas Distribut Technol Fuxue Rd 18 Beijing 102249 Peoples R China;

    China Univ Petr Natl Engn Lab Pipeline Safety Beijing Key Lab Urban Oil &

    Gas Distribut Technol Fuxue Rd 18 Beijing 102249 Peoples R China;

    China Univ Petr Natl Engn Lab Pipeline Safety Beijing Key Lab Urban Oil &

    Gas Distribut Technol Fuxue Rd 18 Beijing 102249 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 安全科学基础理论;
  • 关键词

    Three-stage optimization; Railway network; Route selection; Risk assessment;

    机译:三阶段优化;铁路网络;路线选择;风险评估;

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