AGILE-GISS AGILE: GIScience Series AGILE-GISS AGILE GIScience Ser. 2700-8150 Copernicus Publications Göttingen, Germany 10.5194/agile-giss-3-45-2022 Making Space a better Place: Just In Time Adaptive Interventions for Healthy Lifestyles Ligtenberg Arend 1 Simons Monique 2 Barhorst Marjolein 2 Winkens Laura 2 Laboratory of Geo-Information and Remote Sensing, Wageningen University and Research, the Netherlands Consumption and Healthy Lifestyles Chair group, Wageningen University and Research, the Netherlands 11 06 2022 3 45 Copyright: © 2022 Arend Ligtenberg et al. 2022 This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/ This article is available from https://agile-giss.copernicus.org/articles/3/45/2022/agile-giss-3-45-2022.html The full text article is available as a PDF file from https://agile-giss.copernicus.org/articles/3/45/2022/agile-giss-3-45-2022.pdf

Just In Time Adaptive Interventions (JITAI) are a class of applications that provide tailored support at the right time and place to help people to maintain a healthy lifestyle. This paper presents the initial version of a JITAI application that helps users to make healthy food choices when walking in an urban environment. The app provides interventions based on location, time, and user characteristics. It adapts its interventions based on the type and goal of a user. The JITAI consist of an app for a mobile phone and a backend server. Using the backend, decision points and interventions can be managed as well as users. Moreover, it stores tracks and intervention data. A two-phased experiment will be set-up. The first phase will test the robustness and functionality of the application with a limited number of users. Based on this, the app will be adapted. The second phase will test the effectiveness of the different type of interventions by involving a large user group.