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The group: INTERACT (INTErventions, Research and Action in Cities Team) is a multidisciplinary research team from multiple universities that studies the impact of urban form interventions on physical activity, well-being, and social participation.

The idea: Its submission proposes the development of a methodological toolkit to use machine learning on smartphone sensor data to predict physical activity volume, intensity and transportation mode. The proposed toolkit represents a first step in building a smartphone-based surveillance tool for physical activity in Canada, which has the potential for large-scale population measurement and surveillance at low cost.