Mapping the food environment: The reliability of volunteered geographical information and institutional data sources in France - Archive ouverte HAL Access content directly
Journal Articles Transactions in GIS Year : 2023

Mapping the food environment: The reliability of volunteered geographical information and institutional data sources in France

(1) , (1) , (1)
1

Abstract

The obesity epidemic and inequalities in access to food are prompting increasing numbers of food environment studies, which rely on secondary data sources for mapping. This article assesses the reliability of the two main food outlet data sources in France: the volunteered geographical information (VGI) collaborative map OpenStreetMap (OSM) and the national business register Sirene. Their information on food outlets was assessed through ground-truthing in the city-region of Montpellier. Sensitivity, positive predictive value, and concordance were computed for each database. We analyzed the socio-spatial variability of these measures according to households' income level. The sensitivity of Sirene is good and that of OSM moderate, while the opposite holds for positive predictive value, and the concordance of both OSM and Sirene is fair. Sirene provides more reliable data on deprived neighborhoods and OSM on wealthy neighborhoods. Caution is recommended regarding the classifications on which they are based, the time required to update the institutional database, and socially influenced contributions to VGI.
Not file

Dates and versions

hal-03936774 , version 1 (12-01-2023)

Identifiers

Cite

Simon Vonthron, Coline Perrin, Christophe‐toussaint Soulard. Mapping the food environment: The reliability of volunteered geographical information and institutional data sources in France. Transactions in GIS, In press, ⟨10.1111/tgis.13013⟩. ⟨hal-03936774⟩
0 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More