Nutritional health of children and youth is an increasing cause for concern in Canada. Through food and beverage messaging in multiple environments, young people develop eating behaviours with ramifications throughout their life course. Unhealthy food retailers near schools, recreation facilities, and childcare centres—key activity settings for healthy eating promotion—present repeated, compounding exposures to commercial geomarketing. Geomarketing impacts nutritional health by promoting highly processed, calorie-dense, and nutrient-poor foods and beverages across urban landscapes. While food retail mix (as a ratio of healthy to unhealthy food retailers) can be used to assess food environments at multiple scales, such measures may misrepresent young people's unique experience of these geographic phenomena. Moving beyond uniform conceptualization of food environments, new research methods and tools are needed for children and youth.
We investigated young people's food environments in the major Canadian cities of Calgary and Edmonton. Using government-initiated nutrition guidelines, we categorized 55.8% of all food retailers in Calgary, and 59.9% in Edmonton as ‘unhealthy’. A Bernoulli trial at the 0.05 alpha level indicated few differences in prevalence proximal to activity settings versus elsewhere in both cities, demonstrating the limited applicability of food retail mix for characterizing young people's food environments. To model unhealthy food retailers geomarketing to children and youth, we considered their proximity to multiple activity settings, using overlapping radial buffers at the 250 m, 500 m, 1000 m, and 1500 m scales. Examining young people's food environments relative to the spaces where they learn and play, we determined that as many as 895 out of 2663 unhealthy food retailers fell within 1500 m of 21+ activity settings. By conceptualizing, measuring, and problematizing these “super-proximal” unhealthy food retailers, urban planners and public health researchers can use these techniques to pinpoint unhealthy food retailers, or “weeds in the food swamp,” as a critical site for healthy eating promotion in municipalities.
Geospatial technologies implemented through the World Wide Web (Geoweb) have improved steadily over the last decade. This Geoweb has the potential to allow citizens to collect and use geospatial data in an effort to influence urban planning in a bottom‐up manner—a stark departure from traditional top‐down public consultation in urban planning. This article reviews five classes of geospatial data available to citizens trying to influence urban planning.
These classes have been reviewed in the academic literature before, but not at the same time and not with respect to urban planning. Looking at them together allows for examination of the interconnection as well as the boundaries between them. This paper establishes an understanding of these Geoweb data classes and examines the main barriers citizens face when trying to use geospatial data—with a focus on technological and financial barriers. Despite improvements in the Geoweb that help in reducing these barriers, preliminary evidence suggests that the voices of citizens are still not being fully heard in urban planning.
This article tells the story of a Geoweb project by Paths for People, a biking and walking advocacy group in Edmonton, Canada. Paths for People initiated a Public Participatory Geographic Information Systems (PPGIS) project to inform the development of biking infrastructure in Edmonton, but this was largely ignored by city council, which adopted a top‐down cycling plan. This paper highlights the large gap between the promises of the Geoweb, the current practice of urban planning, and grassroots capabilities of this form of community engagement.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.