On route-choice analysis of hazardous materials transportation
On route-choice analysis of hazardous materials transportation
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发表时间：
2006
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通讯作者：
Wu Zong-zhi
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作者：
Wu Zong-zhi
从道路运输中危险品风险的路径选择、车辆或出行风险源、影响范围等方面分析了道路运输中危险品风险的一般框架。主要讨论了与路径无关和路径相关的影响因素，包括与道路固有特性、气象条件、交通特性和人口密度相关的影响因素。风险分析是危险品运输优化路径的前提，无论是对政府决策还是对承运人自身都具有重要意义。本文还讨论了双层路径管理模型的重要性，并详细分析了最小化事故概率和人口暴露模型的可能性。归根结底，危险品路由问题可以通过阻抗调整节点标记最短路径选择算法和链路标记最短路径选择算法来解决。此外，还对人口暴露区进行了详细的研究，充分考虑了相邻路段重叠的误差项，这也是值得仔细计算的。
This paper intends to introduce the author's analysis on the general framework of hazardous materials (hazmat) risk during the road transportation that may be caused by the route choice, the vehicle or traveling risk source and the impact area. It has mainly discussed the route-independent and route-dependent factors, including the factors correlated to intrinsic road characteristics, meteorological conditions, traffic characteristics and the population density. As is known, the risk analysis is of the premise to the hazmat optimal routing, which is of utmost importance both to the decision-making of government and the carrier itself. The present paper has also discussed the importance of the bi-level routing management model while giving a detailed analysis on the possibilities to minimize the accident probabilities and population exposure models. And, in final analysis, the hazmat routing problem can be resolved with impedance-adjusting node-labeling shortest path-selection algorithm and link-labeling shortest path-selection algorithm. Moreover, a detailed study on the population exposure zone has also been done, taking full account into the error terms of the overlaps between adjacent links, which is also worthy of careful calculation.