人类移动网络在宏观,亚结构和微观尺度上表现出不相同的弹性特征
Chia-Wei Hsu1, Matthew Alexander Ho2, Ali Mostafavi2
1Zachry Department of Civil and Environmental Engineering, Texas A&M University, College Station, TX, 77843, USA. chawei0207@tamu.edu.
Scientific reports
|October 13, 2023
概括
人类移动网络的弹性因规模而异. 宏观测量比微观测量更快地恢复,强调需要进行多层面分析,以了解危机影响和恢复.
科学领域:
- 网络科学 网络科学
- 抗灾能力 抗灾能力 抗灾能力
- 人类流动性研究 人类流动性研究
背景情况:
- 人类流动性网络提供了关于危机期间社会抵御能力的见解.
- 当前的研究往往忽视了弹性指标的规模依赖变化.
- 了解不同网络层面的弹性对于全面分析至关重要.
研究的目的:
- 调查人类移动网络中的规模变量弹性特征.
- 在宏观,基层和微观尺度上比较冲击程度和恢复持续时间.
- 评估单一规模的整体网络弹性措施的代表性.
主要方法:
- 使用基于位置的数据构建了人类移动网络,用于受风艾达影响的路易斯安那州八个教区.
- 分析了宏观 (密度,巨型组件,模块化),基结构 (图案分布) 和微观 (旋转半径,行程距离) 的测量.
- 建立的基线值和跟踪测量风扰动期间的波动.
主要成果:
- 弹性特征,包括影响程度和恢复持续时间,在不同的尺度上有很大的差异.
- 宏观网络测量通常比基层和微观测量更快地恢复.
- 微观移动性测量显示恢复速度最慢,这表明在个体运动水平上存在长期的干扰.
结论:
- 人类移动网络的弹性取决于规模,不同的网络级别对干扰有不同的反应.
- 一个规模的单一弹性测量可能不会准确地反映整个网络的响应或恢复.
- 对网络弹性进行全面的描述需要在多个尺度上采用措施.
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