This study clarified the train user’s tendency of smartphone use while walking from the station’s ticket gate. The walkers who had a smartphone in hand at the ticket gate and had waited over 40 seconds at the stoplight tend to do the act. The presence of other walkers in personal space is the continuation factor of the act, but not the starting factor. The act occurs easily at the places which are within 200m from stay place, because smartphone users can’t stop promptly the operation which was started at the stay place and they can find guides easily.
