The cities of Augsburg and Köln, with others soon to follow suit, has installed pedestrian traffic signals in the pavement (Bodenampeln) of intersections and where lanes cross street-car tracks in order to prevent inattentive individuals, fixated on their mobile devices, from stumbling into on-coming traffic. Other places have designated lanes for those who’d prefer their telepresence to negotiating their actual surroundings. What do you think? Maybe some clever person ought to invent a crossing-guard (Schülerlotse) app that warns one if he or she is about to amble blinding into the street.