Your android phone will be tracking your location using GPS, however our focus will be collecting your location when you are on your journey on the Calder Valley. We can do this by sophisticated technology (a geo-fence) of the Calder Valley route. Our interest is focused on understanding Northern’s service and how it can be improved, not tracking individual’s journeys. Once you have finished your journey (and have left the geo-fence), the Rail Life app will not ask you to log your experiences, until you start another journey. Outside of your journey you may receive status notifications from the Rail Life app (e.g. wearable battery low power), or trial news from the Rail Life team.