The need to protect critical infrastructures (for short called assets within this paper) arises because of the hazards they are exposed to. In this article, the hazard is represented by the landslides. The first part of the paper proposes a scientifically robust method for the identification of the top-N assets that can be modeled as “points” (mainly buildings). The developed method takes into account the slope of the terrain, the runout distance of the landslide and its trajectory. The latter is roughly estimated through the notion of linear regression line. The method is applied to a real case to carry out a preliminary validation of it. In the second part of the paper, it is formalized the problem of computing the ranking of assets that can be modeled as “lines” (e.g., highways, power lines, pipelines, railway lines, and so on, that cross a given territory). The problem is solved in three steps: (a) Segmentation (it “cuts” each route in segments), (b) Sampling (it extracts points from each segment), and (c) Calculation (it associates an exposure value to each extracted point and, then, computes the exposure of the various segments composing the routes). The computation of the exposure for the points is carried out by applying the method of the first part of the paper. Both rankings can be used by the local administrators as a conceptual tool for narrowing down a global problem to smaller, higher exposure, geographic areas where the management of the hazard is crucial.

中文翻译：

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资产对滑坡危险性的排名：GIS建议

由于关键基础设施所面临的危害，因此有必要对其进行保护。在本文中，灾害以滑坡为代表。本文的第一部分提出了一种科学可靠的方法，用于识别可以建模为“点”（主要是建筑物）的前N个资产。所开发的方法考虑了地形的坡度，滑坡的跳动距离及其轨迹。后者是通过线性回归线的概念粗略估计的。将该方法应用于实际案例以对其进行初步验证。在本文的第二部分中，形式化了计算可建模为“线”（例如，公路，电力线，管道，铁路线等）的资产排名的问题，跨越指定区域）。该问题可通过三个步骤解决：（a）细分（将其“切”为分段中的每条路线），（b）采样（从各个分段中提取点）和（c）计算（将曝光值与每个提取的关联点，然后计算组成路线的各个路段的暴露程度）。通过应用论文第一部分的方法进行点的曝光计算。本地管理员可以将这两种等级用作概念工具，以将全球性问题缩小到危害管理至关重要的较小，较高暴露的地理区域。（c）计算（将曝光值与每个提取的点相关联，然后计算组成路线的各个路段的曝光）。通过应用论文第一部分的方法进行点的曝光计算。本地管理员可以将这两个等级用作概念工具，以将全球性问题缩小到对危害进行管理至关重要的较小，较高风险的地理区域。（c）计算（将曝光值与每个提取的点相关联，然后计算组成路线的各个路段的曝光）。通过应用论文第一部分的方法进行点的曝光计算。本地管理员可以将这两种等级用作概念工具，以将全球性问题缩小到对危害进行管理至关重要的较小，较高风险的地理区域。