Reliability Based Investment Prioritization in Transportation Networks
Reliability Based Investment Prioritization in Transportation Networks
复制标题
基于可靠性的交通网络投资优先顺序
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
M. Mesbah
中科院分区：
文献类型：
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作者：
A. Golroo;A. S. Mohaymany;M. Mesbah
运输网络易受灾害的影响，这些灾害破坏了其正常功能。2007年明尼阿波利斯I-35 W桥倒塌和肯塔基州I-65桥因货运列车脱轨而关闭是最近的两个例子，强调了对网络元件可靠性投资的必要性。本文讨论了网络的角度来优化资源配置的基础上的可靠性的交通基础设施。为此，开发了一个优化框架，以有效地分配资源，以最大限度地提高网络的可靠性。为每个环节确定了两项措施。每个链路可以具有几个降级状态。还考虑了链路退化对网络的影响。由于决策变量是整数，这个优化问题是通过实施一个可编程（IP）技术来解决。该框架被应用到一个例子网络和数值结果。所提出的方法可以成功地分配资源，提高网络的可靠性。
Transport networks are vulnerable to disasters which disrupts their normal function. Collapse of I-35W Bridge in Minneapolis and closure of I-65 in Kentucky due to a freight train derailment in 2007 are two recent examples which underline a need to invest on reliability of network elements. This paper discusses a network perspective for optimizing resource allocation based on reliability of transport infrastructure. For this purpose, an optimization framework is developed to efficiently assign the resources to maximize the network reliability. Two measures are identified for each link. Each link may have several states of degradation. The effect of degradation in a link on the network is also considered. As the decision variables are integer, this optimization problem is tackled by implementing an Integer Programming (IP) technique. The proposed framework is applied to an example network and numerical results are presented. The proposed methodology could successfully allocate resources for network reliability improvement.