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首页> 外文期刊>Transportation Research. Part A, Policy and Practice >Importance and exposure in road network vulnerability analysis
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Importance and exposure in road network vulnerability analysis

机译：道路网络脆弱性分析的重要性和风险暴露

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摘要

The reliability and vulnerability of critical infrastructures have attracted a lot of attention recently. In order to assess these issues quantitatively, operational measures are needed. Such measures can also be used as guidance to road administrations in their prioritisation of maintenance and repair of roads, as well as for avoiding causing unnecessary disturbances in the planning of roadwork. The concepts of link importance and site exposure are introduced. In this paper, several link importance indices and site exposure indices are derived, based on the increase in generalised travel cost when links are closed. These measures are divided into two groups: one reflecting an "equal opportunities perspective", and the other a "social efficiency perspective". The measures are calculated for the road network of northern Sweden. Results are collected in a GIS for visualisation, and are presented per link and municipality. In view of the recent great interest in complex networks, some topological measures of the road network are also presented.
机译：关键基础设施的可靠性和脆弱性最近引起了很多关注。为了定量评估这些问题，需要采取操作措施。这些措施也可以作为指导道路管理部门优先维护和修理道路的指南，以及避免对道路工程的规划造成不必要的干扰。介绍了链接重要性和站点暴露的概念。本文基于关闭链接时广义旅行成本的增加，得出了几个链接重要性指数和站点暴露指数。这些措施分为两类：一类反映“机会均等”观点，另一类反映“社会效率观点”。这些措施是针对瑞典北部的公路网计算的。将结果收集在GIS中以进行可视化，并按链接和市镇进行呈现。鉴于最近对复杂网络的极大兴趣，还提出了一些道路网络的拓扑措施。

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