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arXiv 2103.02009physics.soc-phq-bio.PE
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旅行距离、返回频率和疾病传播

Travel distance, frequency of return and the spread of disease

Cate Heine, Kevin P. O'Keeffe, Paolo Santi, Li Yan, Carlo Ratti

摘要:

于2020年及2021年,COVID-19的传播透过限制个人旅行距离在全球范围内得到解决。最近的文献揭示了一个清晰的模式,在人类流动性,城市流动性的复杂性的基础:$r \cdot f$,产品的行驶距离$r$和返回频率$f$每个用户到一个给定的位置,是跨空间不变。本文问是否不变的$r\cdot f$也作为一个驱动程序的流行病传播,使与人类运动的风险可以模拟一个统一的变量$r\cdot f$。我们使用两个大规模的人类流动数据集,以表明事实上有一个简单的关系之间的$r$和$f$和疾病传播的速度和空间分散。这一发现可以帮助建立疾病传播的模型,并为未来流行病的旅行政策提供信息-不仅基于旅行距离$r$,还基于返回频率$f$。

英文摘要:

In 2020 and 2021, the spread of COVID-19 was globally addressed by imposing restrictions on the distance of individual travel. Recent literature has uncovered a clear pattern in human mobility that underlies the complexity of urban mobility: $r \cdot f$, the product of distance traveled $r$ and frequency of return $f$ per user to a given location, is invariant across space. This paper asks whether the invariant $r\cdot f$ also serves as a driver for epidemic spread, so that the risk associated with human movement can be modeled by a unifying variable $r\cdot f$. We use two large-scale datasets of individual human mobility to show that there is in fact a simple relation between $r$ and $f$ and both speed and spatial dispersion of disease spread. This discovery could assist in modeling spread of disease and inform travel policies in future epidemics -- based not only on travel distance $r$ but also on frequency of return $f$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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