气候变化领域集成服务门户(CCPortal): City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic

CCPortal

DOI	10.1029/2020GL089931
	City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic
	Lindsey N.J.; Yuan S.; Lellouch A.; Gualtieri L.; Lecocq T.; Biondi B.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	Throughout the recent COVID-19 pandemic, real-time measurements about shifting use of roads, hospitals, grocery stores, and other public infrastructure became vital for government decision makers. Mobile phone locations are increasingly assimilated for this purpose, but an alternative, unexplored, natively anonymous, absolute method would be to use geophysical sensing to directly measure public infrastructure usage. In this paper, we demonstrate how fiber-optic distributed acoustic sensing (DAS) connected to a telecommunication cable beneath Palo Alto, CA, successfully monitored traffic over a 2-month period, including major reductions associated with COVID-19 response. Continuous DAS recordings of over 450,000 individual vehicles were analyzed using an automatic template-matching detection algorithm based on roadbed strain. In one commuter sector, we found a 50% decrease in vehicles immediately following the order, but near Stanford Hospital, the traffic persisted. The DAS measurements correlate with mobile phone locations and urban seismic noise levels, suggesting geophysics would complement future digital city sensing systems. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Decision making; Geophysics; Hospitals; Template matching; Acoustic sensing; Automatic template matching; Government decisions; Measurements of; Mobile phone locations; Public infrastructures; Real time measurements; Sensing systems; Cellular telephones; acoustic method; algorithm; detection method; epidemic; geophysics; measurement method; mobile phone; seismic noise; telecommunication; viral disease; California; Palo Alto; United States
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169888
作者单位	Geophysics Department, Stanford University, Stanford, CA, United States; Seismology and Gravimetry Department, Royal Observatory of Belgium, Brussels, Belgium
推荐引用方式 GB/T 7714	Lindsey N.J.,Yuan S.,Lellouch A.,et al. City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic[J],2020,47(16).
APA	Lindsey N.J.,Yuan S.,Lellouch A.,Gualtieri L.,Lecocq T.,&Biondi B..(2020).City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic.Geophysical Research Letters,47(16).
MLA	Lindsey N.J.,et al."City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic".Geophysical Research Letters 47.16(2020).