Authors - Robin Horst, Timon Fu, Ralf Dorner Abstract - The consideration of sustainability within the area of passenger transportation is an essential aspect for reducing CO2 emission within this particular part of our daily life. In this paper, we explore the use of gamification within route planning processes on mobile devices to inform users about environmental impacts. We investigate in how an app can help the users in making informed decisions about which routes could be used for their journey considering the sustainability of the utilized transportation vehicles. We propose a gamified route planning app - GreenMile - and discuss its underlying concepts. We evaluate the concepts within a user study. The results show that our participants were particularly motivated initially by collaborative leaderboards that visualize the efforts of an individual group of users. Furthermore, it could be shown that after using the app, users showed a long-term willingness to increasingly consider sustainability in their route planning in the future.
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