Article (Scientific journals)
A longitudinal analysis of the COVID-19 effects on the variability in human activity spaces in Quito, Ecuador
Moncayo Unda, Milton Giovanny; Van Droogenbroeck, Marc; Saadi, Ismaïl et al.
2023In Journal of Transport Geography, 113, p. 103735
Peer Reviewed verified by ORBi


Full Text
Author postprint (1.17 MB)

All documents in ORBi are protected by a user license.

Send to


Keywords :
General Environmental Science; Transportation; Geography, Planning and Development
Abstract :
[en] The COVID-19 pandemic has had a huge impact on human activities due to lockdowns or travel restrictions to preserve public health and decrease the workload of hospitals. Therefore, human activities spaces (HASs) were deeply affected worldwide, but to an extent that is hard to quantify properly. This paper presents a longitudinal analysis of HASs in Quito, Ecuador, before and during the COVID-19 pandemic. Using location data collected through Google Location History (GLH) from the Google Maps application, we compute weekly people's activity point locations (APLs) from a convenience sample of 263 participants, mainly composed of university staff members, considering only weeks with at least five days of data. These APLs are then used to measure the HASs using the confidence ellipses and the minimum spanning trees. Finally, we perform a weekly intra-personal and inter-personal variability analysis of the HASs using a random intercept model, considering (a) the size of HASs as the dependent variable and (b) the levels of restrictions due to the pandemic and the participants' demographics as independent variables. The results reveal that HASs are strongly affected by the intensity of non-pharmaceutical interventions (NPIs) (Social distancing, quarantines, lockdowns, travel restrictions or closure of schools and workplaces) and the composition of the socio-demographic groups. We also demonstrate that the disruptive effects of NPIs on human mobility were reflected in the decrease in trip durations in conjunction with a drop in visited locations as individuals only engage in essential neighbouring activities, implying substantial variations in the size and extent of HASs.
Disciplines :
Special economic topics (health, labor, transportation...)
Civil engineering
Author, co-author :
Moncayo Unda, Milton Giovanny  ;  Université de Liège - ULiège > Urban and Environmental Engineering
Van Droogenbroeck, Marc  ;  Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Télécommunications
Saadi, Ismaïl ;  Université de Liège - ULiège > Département ArGEnCo > Transports et mobilité
Cools, Mario  ;  Université de Liège - ULiège > Département ArGEnCo > Transports et mobilité
Language :
Title :
A longitudinal analysis of the COVID-19 effects on the variability in human activity spaces in Quito, Ecuador
Publication date :
December 2023
Journal title :
Journal of Transport Geography
Publisher :
Elsevier BV
Volume :
Pages :
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 October 2023


Number of views
30 (4 by ULiège)
Number of downloads
25 (4 by ULiège)

Scopus citations®
Scopus citations®
without self-citations


Similar publications

Contact ORBi