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Wang P, Huang J. A data-driven framework to assess population dynamics during novel coronavirus outbreaks: A case study on Xiamen Island, China. PLoS One 2023; 18:e0293803. [PMID: 37948384 PMCID: PMC10637684 DOI: 10.1371/journal.pone.0293803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 10/19/2023] [Indexed: 11/12/2023] Open
Abstract
The outbreak of the Coronavirus Disease 2019 (COVID-19) has profoundly influenced daily life, necessitating the understanding of the relationship between the epidemic's progression and population dynamics. In this study, we present a data-driven framework that integrates GIS-based data mining technology and a Susceptible, Exposed, Infected and Recovered (SEIR) model. This approach helps delineate population dynamics at the grid and community scales and analyze the impacts of government policies, urban functional areas, and intercity flows on population dynamics during the pandemic. Xiamen Island was selected as a case study to validate the effectiveness of the data-driven framework. The results of the high/low cluster analysis provide 99% certainty (P < 0.01) that the population distribution between January 23 and March 16, 2020, was not random, a phenomenon referred to as high-value clustering. The SEIR model predicts that a ten-day delay in implementing a lockdown policy during an epidemic can lead to a significant increase in the number of individuals infected by the virus. Throughout the epidemic prevention and control period (January 23 to February 21, 2020), residential and transportation areas housed more residents. After the resumption of regular activities, the population was mainly concentrated in residential, industrial, and transportation, as well as road facility areas. Notably, the migration patterns into and out of Xiamen were primarily centered on neighboring cities both before and after the outbreak. However, migration indices from cities outside the affected province drastically decreased and approached zero following the COVID-19 outbreak. Our findings offer new insights into the interplay between the epidemic's development and population dynamics, which enhances the prevention and control of the coronavirus epidemic.
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Affiliation(s)
- Peng Wang
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, Xiamen University, Xiamen, China
| | - Jinliang Huang
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, Xiamen University, Xiamen, China
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Unlu A, Truong S, Tammi T, Lohiniva AL. Exploring Political Mistrust in Pandemic Risk Communication: Mixed-Method Study Using Social Media Data Analysis. J Med Internet Res 2023; 25:e50199. [PMID: 37862088 PMCID: PMC10625074 DOI: 10.2196/50199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/08/2023] [Accepted: 09/18/2023] [Indexed: 10/21/2023] Open
Abstract
BACKGROUND This research extends prior studies by the Finnish Institute for Health and Welfare on pandemic-related risk perception, concentrating on the role of trust in health authorities and its impact on public health outcomes. OBJECTIVE The paper aims to investigate variations in trust levels over time and across social media platforms, as well as to further explore 12 subcategories of political mistrust. It seeks to understand the dynamics of political trust, including mistrust accumulation, fluctuations over time, and changes in topic relevance. Additionally, the study aims to compare qualitative research findings with those obtained through computational methods. METHODS Data were gathered from a large-scale data set consisting of 13,629 Twitter and Facebook posts from 2020 to 2023 related to COVID-19. For analysis, a fine-tuned FinBERT model with an 80% accuracy rate was used for predicting political mistrust. The BERTopic model was also used for superior topic modeling performance. RESULTS Our preliminary analysis identifies 43 mistrust-related topics categorized into 9 major themes. The most salient topics include COVID-19 mortality, coping strategies, polymerase chain reaction testing, and vaccine efficacy. Discourse related to mistrust in authority is associated with perceptions of disease severity, willingness to adopt health measures, and information-seeking behavior. Our findings highlight that the distinct user engagement mechanisms and platform features of Facebook and Twitter contributed to varying patterns of mistrust and susceptibility to misinformation during the pandemic. CONCLUSIONS The study highlights the effectiveness of computational methods like natural language processing in managing large-scale engagement and misinformation. It underscores the critical role of trust in health authorities for effective risk communication and public compliance. The findings also emphasize the necessity for transparent communication from authorities, concluding that a holistic approach to public health communication is integral for managing health crises effectively.
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Affiliation(s)
- Ali Unlu
- Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Computer Science, Aalto University, Espoo, Finland
| | - Sophie Truong
- Department of Computer Science, Aalto University, Espoo, Finland
| | - Tuukka Tammi
- Finnish Institute for Health and Welfare, Helsinki, Finland
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Osorio Arjona J, de Las Obras-Loscertales Sampériz J. Estimation of mobility and population in Spain during different phases of the COVID-19 pandemic from mobile phone data. Sci Rep 2023; 13:8962. [PMID: 37268712 DOI: 10.1038/s41598-023-36108-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 05/30/2023] [Indexed: 06/04/2023] Open
Abstract
This work aims to find out the effectiveness of sources based on Big Data like mobile phone records to analyze mobility flows and changes in the population of Spain in different scenarios during the period of the pandemic caused by the COVID-19 virus. To this end, we have used mobile phone data provided by the National Institute of Statistics from four days corresponding to different phases of the pandemic. Origin-Destination matrices and population estimation calculations at the spatial level of population cells have been elaborated. The results show different patterns that correspond to the phenomena that have occurred, as the decrease of the population during the periods associated with the confinement measures. The consistency of findings with the reality and the generally good correlation with the population census data indicate that mobile phone records are a useful source of data for the elaboration of demographic and mobility studies during pandemics.
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Trasberg T, Cheshire J. Spatial and social disparities in the decline of activities during the COVID-19 lockdown in Greater London. URBAN STUDIES (EDINBURGH, SCOTLAND) 2023; 60:1427-1447. [PMID: 37273495 PMCID: PMC10230297 DOI: 10.1177/00420980211040409] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We use data on human mobility obtained from mobile applications to explore the activity patterns in the neighbourhoods of Greater London as they emerged from the first wave of COVID-19 lockdown restrictions during summer 2020 and analyse how the lockdown guidelines have exposed the socio-spatial fragmentation between urban communities. The location data are spatially aggregated to 1 km2 grids and cross-checked against publicly available mobility metrics (e.g. Google COVID-19 Community Report, Apple Mobility Trends Report). They are then linked to geodemographic classifications to compare the average decline of activities in the areas with different sociodemographic characteristics. We found that the activities in the deprived areas dominated by minority groups declined less compared to the Greater London average, leaving those communities more exposed to the virus. Meanwhile, the activity levels declined more in affluent areas dominated by white-collar jobs. Furthermore, due to the closure of non-essential stores, activities declined more in premium shopping destinations and less in suburban high streets.
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Müürisepp K, Järv O, Sjöblom F, Toger M, Östh J. Segregation and the pandemic: The dynamics of daytime social diversity during COVID-19 in Greater Stockholm. APPLIED GEOGRAPHY (SEVENOAKS, ENGLAND) 2023; 154:102926. [PMID: 36999002 PMCID: PMC9998301 DOI: 10.1016/j.apgeog.2023.102926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 02/09/2023] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
In this study, we set out to understand how the changes in daily mobility of people during the first wave of the COVID-19 pandemic in spring 2020 influenced daytime spatial segregation. Rather than focusing on spatial separation, we approached this task from the perspective of daytime socio-spatial diversity - the degree to which people from socially different neighbourhoods share urban space during the day. By applying mobile phone data from Greater Stockholm, Sweden, the study examines weekly changes in 1) daytime social diversity across different types of neighbourhoods, and 2) population groups' exposure to diversity in their main daytime activity locations. Our findings show a decline in daytime diversity in neighbourhoods when the pandemic broke out in mid-March 2020. The decrease in diversity was marked in urban centres, and significantly different in neighbourhoods with different socio-economic and ethnic compositions. Moreover, the decrease in people's exposure to diversity in their daytime activity locations was even more profound and long-lasting. In particular, isolation from diversity increased more among residents of high-income majority neighbourhoods than of low-income minority neighbourhoods. We conclude that while some COVID-19-induced changes might have been temporary, the increased flexibility in where people work and live might ultimately reinforce both residential and daytime segregation.
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Affiliation(s)
- Kerli Müürisepp
- Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, Helsinki, Finland
- Helsinki Institute of Urban and Regional Studies, University of Helsinki, Helsinki, Finland
- Helsinki Inequality Initiative, University of Helsinki, Helsinki, Finland
| | - Olle Järv
- Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, Helsinki, Finland
- Helsinki Institute of Urban and Regional Studies, University of Helsinki, Helsinki, Finland
| | - Feliks Sjöblom
- Department of Human Geography, Uppsala University, Uppsala, Sweden
| | - Marina Toger
- Department of Human Geography, Uppsala University, Uppsala, Sweden
| | - John Östh
- Department of Civil Engineering and Energy Technology, Oslo Metropolitan University, Oslo, Norway
- Institute for Housing and Urban Research, Uppsala University, Uppsala, Sweden
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Okmi M, Por LY, Ang TF, Al-Hussein W, Ku CS. A Systematic Review of Mobile Phone Data in Crime Applications: A Coherent Taxonomy Based on Data Types and Analysis Perspectives, Challenges, and Future Research Directions. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23094350. [PMID: 37177554 PMCID: PMC10181620 DOI: 10.3390/s23094350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
Digital technologies have recently become more advanced, allowing for the development of social networking sites and applications. Despite these advancements, phone calls and text messages still make up the largest proportion of mobile data usage. It is possible to study human communication behaviors and mobility patterns using the useful information that mobile phone data provide. Specifically, the digital traces left by the large number of mobile devices provide important information that facilitates a deeper understanding of human behavior and mobility configurations for researchers in various fields, such as criminology, urban sensing, transportation planning, and healthcare. Mobile phone data record significant spatiotemporal (i.e., geospatial and time-related data) and communication (i.e., call) information. These can be used to achieve different research objectives and form the basis of various practical applications, including human mobility models based on spatiotemporal interactions, real-time identification of criminal activities, inference of friendship interactions, and density distribution estimation. The present research primarily reviews studies that have employed mobile phone data to investigate, assess, and predict human communication and mobility patterns in the context of crime prevention. These investigations have sought, for example, to detect suspicious activities, identify criminal networks, and predict crime, as well as understand human communication and mobility patterns in urban sensing applications. To achieve this, a systematic literature review was conducted on crime research studies that were published between 2014 and 2022 and listed in eight electronic databases. In this review, we evaluated the most advanced methods and techniques used in recent criminology applications based on mobile phone data and the benefits of using this information to predict crime and detect suspected criminals. The results of this literature review contribute to improving the existing understanding of where and how populations live and socialize and how to classify individuals based on their mobility patterns. The results show extraordinary growth in studies that utilized mobile phone data to study human mobility and movement patterns compared to studies that used the data to infer communication behaviors. This observation can be attributed to privacy concerns related to acquiring call detail records (CDRs). Additionally, most of the studies used census and survey data for data validation. The results show that social network analysis tools and techniques have been widely employed to detect criminal networks and urban communities. In addition, correlation analysis has been used to investigate spatial-temporal patterns of crime, and ambient population measures have a significant impact on crime rates.
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Affiliation(s)
- Mohammed Okmi
- Faculty of Computer Science and Information Technology, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Department of Information Technology and Security, Jazan University, Jazan 45142, Saudi Arabia
| | - Lip Yee Por
- Faculty of Computer Science and Information Technology, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Tan Fong Ang
- Faculty of Computer Science and Information Technology, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Ward Al-Hussein
- Faculty of Computer Science and Information Technology, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Chin Soon Ku
- Department of Computer Science, Universiti Tunku Abdul Rahman, Kampar 31900, Malaysia
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Impact of COVID-19 on the Surrounding Environment of Nursing Home Residents and Attitudes towards Infection Control and Oral Health Care among Nursing Home Staff in Japan. J Clin Med 2023; 12:jcm12051944. [PMID: 36902732 PMCID: PMC10003858 DOI: 10.3390/jcm12051944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/25/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023] Open
Abstract
The environments of nursing home staff and residents have dramatically changed since the onset of the COVID-19 pandemic, with greater demand for infection control. This study aimed to clarify the changes and regional differences in the surrounding environment of nursing home residents as well as the working environment of staff, including oral health care, after the spread of SARS-CoV-2. A self-administered questionnaire survey was sent to nursing staff at about 40 nursing homes in different areas of Japan in September and October 2021. The questionnaire consisted of items centered around: (1) the surrounding environment of nursing home residents, (2) awareness and attitudes towards daily work among staff, and (3) attitudes to and procedures for oral health care among staff. A total of 929 respondents included 618 (66.5%) nursing care workers and 134 (14.4%) nurses. Regarding changes in resident daily life, 60% of staff perceived decreases in psychosocial and physical function after the start of the pandemic due to limited family communication and recreational activities, especially in urban areas. Concerning infection control, most respondents adopted routines of disinfecting hands before and after their duties. Oral health care was part of the regular duties of over 80% of respondents. Many participants answered that the frequency and time of oral health care only slightly changed after the onset of COVID-19, but many also reported disinfecting hands both before and after oral health care, particularly in rural areas. Our findings suggested that the COVID-19 pandemic decreased the daily living activities of residents, leading to psychosocial and physical decline, especially in urban areas. The results also indicated that the spread of SARS-CoV-2 triggered improvements in the awareness and attitudes towards infection control in daily work, including oral health care, among nursing care staff, notably in rural areas. Such an effect may contribute to a more positive perception of oral health care infection measures after the pandemic.
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Tammaru T, Kliimask J, Kalm K, Zālīte J. Did the pandemic bring new features to counter-urbanisation? Evidence from Estonia. JOURNAL OF RURAL STUDIES 2023; 97:345-355. [PMID: 36575679 PMCID: PMC9778692 DOI: 10.1016/j.jrurstud.2022.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
This paper aims to shed new light on changes in counter-urbanisation over the past three decades. A specific focus will be placed on new features of domestic migration to non-metropolitan rural areas which have become apparent during the global coronavirus pandemic. We focus on the intensity, origins, and destinations of counter-urban moves, and on the individual characteristics of counter-urban movers. Based on a case study of Estonia, our main findings show, firstly, that urbanisation has been the predominant migration trend across the past thirty years, with the main destination of domestic migrants being the capital city and its urban region. Secondly, we find that counter-urban moves have gained importance over time and especially during the periods of economic bust. The most important new features of counter-urbanisation during the pandemic relate to the increased migration of families with children and people who have high-income occupations to non-metropolitan rural areas. These new features of domestic migration could serve to slow down or even reverse the long-term problem of population aging in the countryside and the loss of educated people there.
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Affiliation(s)
- Tiit Tammaru
- University of Tartu, Department of Geography, Estonia
- Estonian Academy of Sciences, Estonia
| | - Jaak Kliimask
- Estonian University of Life Sciences, Institute of Agricultural and Environmental Sciences, Estonia
| | - Kadi Kalm
- University of Tartu, Department of Geography, Estonia
| | - Jānis Zālīte
- University of Tartu, Department of Geography, Estonia
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Wang J, Kaza N, McDonald NC, Khanal K. Socio-economic disparities in activity-travel behavior adaptation during the COVID-19 pandemic in North Carolina. TRANSPORT POLICY 2022; 125:70-78. [PMID: 35664727 PMCID: PMC9140319 DOI: 10.1016/j.tranpol.2022.05.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 03/06/2022] [Accepted: 05/25/2022] [Indexed: 05/27/2023]
Abstract
The COVID-19 pandemic significantly affected human mobility. This study examines the changes in people's activity-travel behavior over 23 months (from Jan 2020 to Nov 2021) and how these changes are associated with the socio-economic status (SES) at the block group level in North Carolina. We identified 5 pandemic stages with different restriction regimes: the pre-pandemic, lockdown, reopening stage, restriction, and complete opening stage. Using the block-group mobility data from SafeGraph, we quantify visits to 8 types of destinations during the 5 stages. We construct regression models with interaction terms between SES and stages and find that visit patterns during the pandemic vary for different types of destinations and SES areas. Specifically, we show that visits to retail stores have a slight decrease for low and medium SES areas, and visits to retail stores and restaurants and bars bounced back immediately after the lockdown for all SES areas. The results suggest that people in low SES areas continued traveling during the pandemic. Transportation planners and policymakers should carefully design the transportation system to satisfy travel needs of those residents. Furthermore, the results also highlight the importance of designing mitigation policies that recognize the immediate recovery of visits to retail locations, restaurants, and bars.
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Affiliation(s)
- Jueyu Wang
- Department of City and Regional Planning, University of North Carolina, Chapel Hill, New East Building, CB3140, Chapel Hill, NC, 27599, USA
| | - Nikhil Kaza
- Department of City and Regional Planning, University of North Carolina, Chapel Hill, New East Building, CB3140, Chapel Hill, NC, 27599, USA
| | - Noreen C McDonald
- Department of City and Regional Planning, University of North Carolina, Chapel Hill, New East Building, CB3140, Chapel Hill, NC, 27599, USA
| | - Kshitiz Khanal
- Department of City and Regional Planning, University of North Carolina, Chapel Hill, New East Building, CB3140, Chapel Hill, NC, 27599, USA
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Oakes MC, Zhang F, Stevenson L, Porcelli B, Carter EB, Raghuraman N, Kelly JC. Changes in the Antenatal Utilization of High-Risk Obstetric Services and Stillbirth Rate during the COVID-19 Pandemic. Am J Perinatol 2022; 39:830-835. [PMID: 34856612 PMCID: PMC9757080 DOI: 10.1055/s-0041-1740212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The primary objective of this study was to evaluate coronavirus 2019 (COVID-19) pandemic-related changes in the antenatal utilization of high-risk obstetric services. Our secondary objective was to characterize change in stillbirth rate during the pandemic. STUDY DESIGN This is a retrospective, observational study performed at a single, tertiary care center. Maternal-Fetal Medicine (MFM) visits, ultrasounds, and antenatal tests of fetal well-being during the pandemic epoch (2020), which spans the first 12 weeks of the year to include pandemic onset and implementation of mitigation efforts, were compared with the same epoch of the three preceding years visually and using general linear models to account for week and year effect. An analysis of stillbirth rate comparing the pandemic time period to prepandemic was also performed. RESULTS While there were decreased MFM visits and antenatal tests of fetal well-being during the pandemic epoch compared with prepandemic epochs, only the decrease in MFM visits by year was statistically significant (p < 0.001). The stillbirth rate during the pandemic epoch was not significantly different when compared with the prepandemic period and accounting for both week (p = 0.286) and year (p = 0.643) effect. CONCLUSION The COVID-19 pandemic resulted in a significant decrease in MFM visits, whereas obstetric ultrasounds and antenatal tests of fetal well-being remained unchanged. While we observed no change in the stillbirth rate compared with the prepandemic epoch, our study design and sample size preclude us from making assumptions of association. Our findings may support future work investigating how changes in prenatal care for high-risk obstetric patients influence perinatal outcomes. KEY POINTS · MFM visits significantly decreased during the COVID-19 pandemic epoch.. · The overall stillbirth rate during the COVID-19 pandemic epoch was not significantly changed.. · Larger studies are needed to capitalize on these changes to evaluate rare outcomes such as stillbirth..
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Affiliation(s)
- Megan C. Oakes
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Washington University, in St. Louis School of Medicine, St. Louis, Missouri
| | - Fan Zhang
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Washington University, in St. Louis School of Medicine, St. Louis, Missouri
| | - Lori Stevenson
- Women & Infants Center, Barnes-Jewish Hospital, St. Louis, Missouri
| | - Bree Porcelli
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Washington University, in St. Louis School of Medicine, St. Louis, Missouri
| | - Ebony B. Carter
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Washington University, in St. Louis School of Medicine, St. Louis, Missouri
| | - Nandini Raghuraman
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Washington University, in St. Louis School of Medicine, St. Louis, Missouri
| | - Jeannie C. Kelly
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Washington University, in St. Louis School of Medicine, St. Louis, Missouri
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Poltimäe H, Rehema M, Raun J, Poom A. In search of sustainable and inclusive mobility solutions for rural areas. EUROPEAN TRANSPORT RESEARCH REVIEW 2022; 14:13. [PMID: 38624807 PMCID: PMC8983330 DOI: 10.1186/s12544-022-00536-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/24/2022] [Indexed: 04/17/2024]
Abstract
Background Despite emerging research on novel mobility solutions in urban areas, there have been few attempts to explore the relevance and sustainability of these solutions in rural contexts. Furthermore, existing research addressing rural mobility solutions typically focuses on a specific user group, such as local residents, second-home owners, or tourists. In this paper, we study the social inclusivity, economic viability, and environmental impacts of novel mobility solutions in rural contexts based on published scholarly literature. When doing so, we bring both permanent and temporary residents of rural areas under one research framework. Methods We used grey literature to identify and categorise novel mobility solutions, which have been applied in European rural areas and are suitable for travelling longer distances. By using six service flexibility variables, we reached four categories of novel mobility solutions: semi-flexible demand-responsive transport, flexible door-to-door demand-responsive transport, car-sharing, and ride-sharing. We analysed the social inclusivity, economic viability, and environmental impacts of those categories based on criteria and evidence identified from scholarly literature by including the perspectives of both permanent and temporary residents of rural areas. Results Our findings revealed that while single novel mobility solutions are seldom applicable for all rural travellers, strong spatial and temporal synergies exist when combining different solutions. The need for a connected and flexible set of mobility solutions sensitive to the temporal and spatial patterns of mobility needs is inevitable. Accessible and easily understandable information on routing, booking, and ticketing systems, as well as cooperation, shared values, and trust between various parties, are key success factors for sustainable rural mobility. Conclusion Integration of the needs of various user groups is essential when aiming to achieve the provision of environmentally, socially, and economically sustainable mobility solutions in rural areas. Supplementary Information The online version contains supplementary material available at 10.1186/s12544-022-00536-3.
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Affiliation(s)
- Helen Poltimäe
- School of Economics and Business Administration, University of Tartu, Narva mnt 18, 51009 Tartu, Estonia
- Stockholm Environment Institute Tallinn Centre, Erika 14, 10416 Tallinn, Estonia
| | - Merlin Rehema
- Stockholm Environment Institute Tallinn Centre, Erika 14, 10416 Tallinn, Estonia
- School of Humanities, Tallinn University, Narva mnt 25, 10120 Tallinn, Estonia
| | - Janika Raun
- Mobility Lab, Department of Geography, University of Tartu, Vanemuise 46, 51003 Tartu, Estonia
- Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, Gustaf Hällströmin katu 2, 00014 Helsinki, Finland
- Ruralia Institute, University of Helsinki, Lönnrotinkatu 7, 50100 Mikkeli, Finland
| | - Age Poom
- Mobility Lab, Department of Geography, University of Tartu, Vanemuise 46, 51003 Tartu, Estonia
- Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, Gustaf Hällströmin katu 2, 00014 Helsinki, Finland
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Abstract
In this study, call detail records (CDR), covering Budapest, Hungary, are processed to analyze the circadian rhythm of the subscribers. An indicator, called wake-up time, is introduced to describe the behavior of a group of subscribers. It is defined as the time when the mobile phone activity of a group rises in the morning. Its counterpart is the time when the activity falls in the evening. Inhabitant and area-based aggregation are also presented. The former is to consider the people who live in an area, while the latter uses the transit activity in an area to describe the behavior of a part of the city. The opening hours of the malls and the nightlife of the party district are used to demonstrate this application as real-life examples. The proposed approach is also used to estimate the working hours of the workplaces. The findings are in a good agreement with the practice in Hungary, and also support the workplace detection method. A negative correlation is found between the wake-up time and mobility indicators (entropy, radius of gyration): on workdays, people wake up earlier and travel more, while on holidays, it is quite the contrary. The wake-up time is evaluated in different socioeconomic classes, using housing prices and mobile phones prices, as well. It is found that lower socioeconomic groups tend to wake up earlier.
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Abstract
The subject of this paper is to determine how the COVID-19 virus pandemic affected the situation in Serbian villages. The task of the paper is to show the positive and negative consequences that resulted from the pandemic. This would indicate that some of them may represent a new idea, a chance, or would work in favor of the sustainability of the villages of Serbia. In support of objectivity, research was carried out among the population that inhabits the rural areas of Serbia. It examined the extent to which internationally recognized phenomena and consequences of the COVID-19 virus pandemic were present in the study area and considered the nature of their impact on sustainability. The results of the semi-structured questionnaire were processed using descriptive statistics, t-test, and analysis of variance (ANOVA). Respondents contributed to the conception of possible solutions with their comments. The obtained differences in the answers resulted from different socio-demographic characteristics of the respondents, but also from the fact that the villages of Serbia differ in natural and social characteristics. Respondents’ responses are in favor of economic and sociodemographic sustainability, but they do not think in terms of environmental sustainability. The paper reveals several development opportunities, which complement each other and contribute to different methods for sustainability of rural villages in Serbia.
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Wang Y, Zhong C, Gao Q, Cabrera-Arnau C. Understanding internal migration in the UK before and during the COVID-19 pandemic using twitter data. URBAN INFORMATICS 2022; 1:15. [PMCID: PMC9705444 DOI: 10.1007/s44212-022-00018-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/10/2022] [Accepted: 11/15/2022] [Indexed: 12/03/2022]
Abstract
The COVID-19 pandemic has greatly affected internal migration patterns and may last beyond the pandemic. It raises the need to monitor the migration in an economical, effective and timely way. Benefitting from the advancement of geolocation data collection techniques, we used near real-time and fine-grained Twitter data to monitor migration patterns during the COVID-19 pandemic, dated from January 2019 to December 2021. Based on geocoding and estimating home locations, we proposed five indices depicting migration patterns, which are demonstrated by applying an empirical study at national and local authority scales to the UK. Our findings point to complex social processes unfolding differently over space and time. In particular, the pandemic and lockdown policies significantly reduced the rate of migration. Furthermore, we found a trend of people moving out of large cities to the nearby rural areas, and also conjunctive cities if there is one, before and during the peak of the pandemic. The trend of moving to rural areas became more significant in 2020 and most people who moved out had not returned by the end of 2021, although large cities recovered more quickly than other regions. Our results of monthly migration matrixes are validated to be consistent with official migration flow data released by the Office for National Statistics, but have finer temporal granularity and can be updated more frequently. This study demonstrates that Twitter data is highly valuable for migration trend analysis despite the biases in population representation.
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Affiliation(s)
- Yikang Wang
- Centre for Advanced Spatial Analysis, University College London, London, UK
| | - Chen Zhong
- Centre for Advanced Spatial Analysis, University College London, London, UK
| | - Qili Gao
- Centre for Advanced Spatial Analysis, University College London, London, UK
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15
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Rinne T, Kajosaari A, Söderholm M, Berg P, Pesola AJ, Smith M, Kyttä M. Delineating the geographic context of physical activities: A systematic search and scoping review of the methodological approaches used in social ecological research over two decades. Health Place 2021; 73:102737. [PMID: 34952474 DOI: 10.1016/j.healthplace.2021.102737] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/04/2021] [Accepted: 12/14/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND The social ecological approach suggests that the spatial context among other factors influence physical activity behavior. Ample research documents physical environmental effects on physical activity. Yet, to date inconsistent associations remain, which might be explained by conceptual and methodological challenges in measuring the spatial dimensions of health behavior. We review methods applied to measure the spatial contexts in the social ecological physical activity literature. METHODS Online databases and selected reviews were used to identify papers published between 1990 and 2020. A total of 2167 records were retrieved, from which 412 studies that used physical activity as a primary outcome variable, included measures of the physical environment and applied the main principles of the social ecological approach, were included. RESULTS Subjective approaches were the dominant method to capture the spatial context of physical activities. These approaches were applied in 67% (n=279) of the studies. From the objective approaches an administrative unit was most prevalent and was applied in 29% (n=118) of the studies. The most comprehensive objective spatial methods that capture the true environmental exposure, were used only in 2% (n=10) of the studies. CONCLUSIONS Current social ecological physical activity research applies simple conceptualizations and methods of the spatial context. While conceptual and methodological concerns have been repeatedly expressed, no substantive progress has been made in the use of spatial approaches. To further our understanding on place effects on health, future studies should carefully consider the choice of spatial approaches, and their effect on study results.
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Affiliation(s)
- Tiina Rinne
- Spatial Planning and Transportation Engineering Research Group, Department of Built Environment, School of Engineering, Aalto University, Finland; Active Life Lab, South-Eastern Finland University of Applied Sciences, Mikkeli, Finland.
| | - Anna Kajosaari
- Spatial Planning and Transportation Engineering Research Group, Department of Built Environment, School of Engineering, Aalto University, Finland
| | - Maria Söderholm
- Finnish Environment Institute SYKE, Finland; Research and Innovation Services, Aalto University, Finland
| | - Päivi Berg
- Juvenia - Youth Research and Development Centre, South-Eastern Finland University of Applied Sciences, Finland
| | - Arto J Pesola
- Active Life Lab, South-Eastern Finland University of Applied Sciences, Mikkeli, Finland
| | - Melody Smith
- School of Nursing, The University of Auckland, New Zealand
| | - Marketta Kyttä
- Spatial Planning and Transportation Engineering Research Group, Department of Built Environment, School of Engineering, Aalto University, Finland
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16
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Zhou Y, Feng L, Zhang X, Wang Y, Wang S, Wu T. Spatiotemporal patterns of the COVID-19 control measures impact on industrial production in Wuhan using time-series earth observation data. SUSTAINABLE CITIES AND SOCIETY 2021; 75:103388. [PMID: 34608429 PMCID: PMC8482229 DOI: 10.1016/j.scs.2021.103388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/20/2021] [Accepted: 09/20/2021] [Indexed: 05/16/2023]
Abstract
Understanding the spatiotemporal patterns of the COVID-19 impact on industrial production could improve the estimation of the economic loss and sustainable work resumption policies in cities. In this study, assuming and checking a correlation between the land surface temperature (LST) and industrial production, we applied the BFAST algorithm and linear regression models on multi-temporal MODIS data to derive monthly time-series deviation of LST with a spatial resolution of 1 × 1 km, to quantificationally explore the fine-scale spatiotemporal patterns of the COVID-19 control measures impact on industrial production, within Wuhan city. The results demonstrate that (1) the trend of time-series LST could partly reflect the impact of the COVID-19 pandemic on industrial production, and the year-around industrial production was less than expectations, with a fall of 14.30%; (2) the most serious COVID-19 impact on industrial production appeared in Mar. and Apr., then, after the lifting of lockdown, some regions (approximate 4.90%) firstly returned to expected levels in Jun, and almost all regions (98.49%) have completed the resumption of work and production before Nov.; (3) the southwest and south-central had more serious impact of the COVID-19 pandemic, approximate twice as much as that in the north and suburban, in Wuhan. The results and findings elaborated the spatiotemporal distribution and their changes during 2020 within Wuhan, which could provide a beneficial support for assessment of the COVID-19 pandemic and implementation of resumption plans for sustainable development.
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Affiliation(s)
- Ya'nan Zhou
- College of Hydrology and Water Resources, Hohai University, Address: No. 1, Xikang Road, Nanjing 210010, China
| | - Li Feng
- College of Hydrology and Water Resources, Hohai University, Address: No. 1, Xikang Road, Nanjing 210010, China
| | - Xin Zhang
- Aerospace information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Wang
- College of Hydrology and Water Resources, Hohai University, Address: No. 1, Xikang Road, Nanjing 210010, China
| | - Shunying Wang
- College of Hydrology and Water Resources, Hohai University, Address: No. 1, Xikang Road, Nanjing 210010, China
| | - Tianjun Wu
- School of Science, Chang'an University, Xi'an 710064, China
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17
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Analyzing the Behavior and Financial Status of Soccer Fans from a Mobile Phone Network Perspective: Euro 2016, a Case Study. INFORMATION 2021. [DOI: 10.3390/info12110468] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, Call Detail Records (CDRs) covering Budapest for the month of June in 2016 were analyzed. During this observation period, the 2016 UEFA European Football Championship took place, which significantly affected the habit of the residents despite the fact that not a single match was played in the city. We evaluated the fans’ behavior in Budapest during and after the Hungarian matches and found that the mobile phone network activity reflected the football fans’ behavior, demonstrating the potential of the use of mobile phone network data in a social sensing system. The Call Detail Records were enriched with mobile phone properties and used to analyze the subscribers’ devices. Applying the device information (Type Allocation Code) obtained from the activity records, the Subscriber Identity Modules (SIM), which do not operate in cell phones, were omitted from mobility analyses, allowing us to focus on the behavior of people. Mobile phone price was proposed and evaluated as a socioeconomic indicator and the correlation between the phone price and the mobility customs was found. We also found that, besides the cell phone price, the subscriber age and subscription type also had effects on users’ mobility. On the other hand, these factors did not seem to affect their interest in football.
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18
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The Use of ICT-Based Applications to Support the Implementation of Smart Cities during the COVID-19 Pandemic in Indonesia. INFRASTRUCTURES 2021. [DOI: 10.3390/infrastructures6090119] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The COVID-19 pandemic has resulted in compulsion and encouragement of actions that have enabled changes to occur globally that have then been adapted to current conditions. For their highly dense populations, it is difficult to control the spread of the virus in cities. As a result, activities that draw large crowds together so that people can access public services are inevitable. Several cities that have been declared as smart cities in Indonesia have made a breakthrough by making use of information and communication technology (ICT)-based applications. This can be of great help for societies during pandemics. ICT has been able to help citizens perform various activities from home with the help of applications. This study aims to identify various applications that support the implementation of the concept of a smart city. This applies particularly to those applications that are based on ICT that can tackle the unique conditions of the COVID-19 pandemic and make recommendations regarding future developments. The data collected for this study were analyzed using secondary sources obtained from various clusters of literature, the internet, and social media. In addition, primary data was gathered from discussion forums. This paper employs a qualitative approach with qualitative descriptive data analysis techniques and hierarchical cluster analysis. Qualitative descriptive analysis was utilized to explore the conditions of smart cities, the regional conditions of the pandemic, and smart city applications more generally. The results show that during the COVID-19 pandemic, cities and regions, including the 100 smart cities in Indonesia, have developed many innovative solutions through ICT-based applications that can help people maintain an active social life and access public services. In the future, when everything is allegedly back to normal, cities need to implement the use of various ICT-based applications to increase efficiency in their planning and management. Therefore, it has become increasingly necessary to improve people’s digital literacy and to develop a type of ICT infrastructure that enables more people to access the internet.
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19
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Portraying Citizens’ Occupations and Assessing Urban Occupation Mixture with Mobile Phone Data: A Novel Spatiotemporal Analytical Framework. ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION 2021. [DOI: 10.3390/ijgi10060392] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Mobile phone data is a typical type of big data with great potential to explore human mobility and individual portrait identification. Previous studies in population classifications with mobile phone data only focused on spatiotemporal mobility patterns and their clusters. In this study, a novel spatiotemporal analytical framework with an integration of spatial mobility patterns and non-spatial behavior, through smart phone APP (applications) usage preference, was proposed to portray citizens’ occupations in Guangzhou center through mobile phone data. An occupation mixture index (OMI) was proposed to assess the spatial patterns of occupation diversity. The results showed that (1) six types of typical urban occupations were identified: financial practitioners, wholesalers and sole traders, IT (information technology) practitioners, express staff, teachers, and medical staff. (2) Tianhe and Yuexiu district accounted for most employed population. Wholesalers and sole traders were found to be highly dependent on location with the most obvious industrial cluster. (3) Two centers of high OMI were identified: Zhujiang New Town CBD and Tianhe Smart City (High-Tech Development Zone). It was noted that CBD has a more profound effect on local as well as nearby OMI, while the scope of influence Tianhe Smart City has on OMI is limited and isolated. This study firstly integrated both spatial mobility and non-spatial behavior into individual portrait identification with mobile phone data, which provides new perspectives and methods for the management and development of smart city in the era of big data.
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20
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Poom A, Willberg E, Toivonen T. Environmental exposure during travel: A research review and suggestions forward. Health Place 2021; 70:102584. [PMID: 34020232 DOI: 10.1016/j.healthplace.2021.102584] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 04/26/2021] [Accepted: 05/04/2021] [Indexed: 12/12/2022]
Abstract
Daily travel through the urban fabric exposes urban dwellers to a range of environmental conditions that may have an impact on their health and wellbeing. Knowledge about exposures during travel, their associations with travel behavior, and their social and health outcomes are still limited. In our review, we aim to explain how the current environmental exposure research addresses the interactions between human and environmental systems during travel through their spatial, temporal and contextual dimensions. Based on the 104 selected studies, we identify significant recent advances in addressing the spatiotemporal dynamics of exposure during travel. However, the conceptual and methodological framework for understanding the role of multiple environmental exposures in travel environments is still in an early phase, and the health and wellbeing impacts at individual or population level are not well known. Further research with greater geographical balance is needed to fill the gaps in the empirical evidence, and linking environmental exposures during travel with the causal health and wellbeing outcomes. These advancements can enable evidence-based urban and transport planning to take the next step in advancing urban livability.
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Affiliation(s)
- Age Poom
- Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, Gustaf Hällströmin katu 2, FI-00014, Helsinki, Finland; Mobility Lab, Department of Geography, University of Tartu, Vanemuise 46, EE-51003, Tartu, Estonia; Helsinki Institute of Urban and Regional Studies (Urbaria), University of Helsinki, Yliopistonkatu 3, FI-00014, Finland; Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, Yliopistonkatu 3, FI-00014, Finland.
| | - Elias Willberg
- Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, Gustaf Hällströmin katu 2, FI-00014, Helsinki, Finland; Helsinki Institute of Urban and Regional Studies (Urbaria), University of Helsinki, Yliopistonkatu 3, FI-00014, Finland; Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, Yliopistonkatu 3, FI-00014, Finland.
| | - Tuuli Toivonen
- Digital Geography Lab, Department of Geosciences and Geography, University of Helsinki, Gustaf Hällströmin katu 2, FI-00014, Helsinki, Finland; Helsinki Institute of Urban and Regional Studies (Urbaria), University of Helsinki, Yliopistonkatu 3, FI-00014, Finland; Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, Yliopistonkatu 3, FI-00014, Finland.
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21
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Evaluating the Effect of the Financial Status to the Mobility Customs. ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION 2021. [DOI: 10.3390/ijgi10050328] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this article, we explore the relationship between cellular phone data and housing prices in Budapest, Hungary. We determine mobility indicators from one months of Call Detail Records (CDR) data, while the property price data are used to characterize the socioeconomic status at the Capital of Hungary. First, we validated the proposed methodology by comparing the Home and Work locations estimation and the commuting patterns derived from the cellular network dataset with reports of the national mini census. We investigated the statistical relationships between mobile phone indicators, such as Radius of Gyration, the distance between Home and Work locations or the Entropy of visited cells, and measures of economic status based on housing prices. Our findings show that the mobility correlates significantly with the socioeconomic status. We performed Principal Component Analysis (PCA) on combined vectors of mobility indicators in order to characterize the dependence of mobility habits on socioeconomic status. The results of the PCA investigation showed remarkable correlation of housing prices and mobility customs.
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22
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Kim J, Kwan MP. The impact of the COVID-19 pandemic on people's mobility: A longitudinal study of the U.S. from March to September of 2020. JOURNAL OF TRANSPORT GEOGRAPHY 2021; 93:103039. [PMID: 36569218 PMCID: PMC9759208 DOI: 10.1016/j.jtrangeo.2021.103039] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 03/18/2021] [Accepted: 03/26/2021] [Indexed: 05/03/2023]
Abstract
This paper examines changes in people's mobility over a 7-month period (from March 1st to September 30th, 2020) during the COVID-19 pandemic in the U.S. using longitudinal models and county-level mobility data obtained from people's anonymized mobile phone signals. It differentiates two distinct waves of the study period: Wave 1 (March-June) and Wave 2 (June-September). It also analyzes the relationships of these mobility changes with various social, spatial, policy, and political factors. The results indicate that mobility changes in Wave 1 have a V-shaped trend: people's mobility first declined at the early stage of the COVID-19 pandemic (March-April) but quickly recovered to the pre-pandemic mobility levels from April to June. The rates of mobility changes during this period are significantly associated with most of our key variables, including political partisanship, poverty level, and the strictness of mobility restriction policies. For Wave 2, there was very little mobility decline despite the existence of mobility restriction policies and the COVID-19 pandemic becoming more severe. Our findings suggest that restricting people's mobility to control the pandemic may be effective only for a short period, especially in liberal democratic societies. Further, since poor people (who are mostly essential workers) kept traveling during the pandemic, health authorities should pay special attention to these people by implementing policies to mitigate their high COVID-19 exposure risk.
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Affiliation(s)
- Junghwan Kim
- Department of Geography and Geographic Information Science, University of Illinois at Urbana-Champaign, Natural History Building, 1301 W Green Street, Urbana, IL 61801, USA
| | - Mei-Po Kwan
- Department of Geography and Resource Management and Institute of Space and Earth Information Science, Fok Ying Tung Remote Sensing Science Building, The Chinese University of Hong Kong, Shatin, Hong Kong, China
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23
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Prandi C, Nisi V, Ribeiro M, Nunes N. Sensing and making sense of tourism flows and urban data to foster sustainability awareness: a real-world experience. JOURNAL OF BIG DATA 2021; 8:51. [PMID: 33782645 PMCID: PMC7989699 DOI: 10.1186/s40537-021-00442-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Tourism is one of the world's largest industries fundamentally arising from mobility as a form of capital. In destination islands that have a delicate ecosystem to maintain, this source of income can become problematic in terms of sustainability. A difficulty in making people aware of this issue is also represented by the fact that such sustainability-related issues (and their causes) are often not "visible" to citizens. To foster awareness about the relationship between sustainability and tourism in well-known destinations, we design a platform that engages users at two levels of participation: i. at the IoT and sensors level, in order to let them becoming providers of big data, deploying and enlarging the pervasive infrastructure; ii. at the (big) data visualization level, with the aim of engaging them in making sense of large volumes of data related to sustainability. This paper presents the design and implementation of a real-world experience where a low-cost collaborative platform made it possible to sense and visualize tourist flows and urban data into a rich interactive map-based visualization, open to the local communities. We deployed our case study in the Madeira archipelago, engaging locals and visitors of the island in two exploratory studies focused on measuring the impact of providing users with meaningful representations of tourism flows and related unperceivable aspects that affect the environmental sustainability. Analysing the findings of the two studies, we discuss the potentiality of using such a system to make sense of big data, fostering awareness about sustainability issues, and we point to future open challenges about citizens' participation in sensing and making sense of big data.
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Affiliation(s)
- Catia Prandi
- Department of Computer Science and Engineering, Bologna, Italy
- ITI/LARSyS,
Funchal, Portugal
| | - Valentina Nisi
- Instituto Superior Técnico, U. of Lisbon, Lisbon, Portugal
- ITI/LARSyS,
Funchal, Portugal
| | - Miguel Ribeiro
- Instituto Superior Técnico, U. of Lisbon, Lisbon, Portugal
- ITI/LARSyS,
Funchal, Portugal
| | - Nuno Nunes
- Instituto Superior Técnico, U. of Lisbon, Lisbon, Portugal
- ITI/LARSyS,
Funchal, Portugal
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