Case StudyDani ComarDecember 08, 2014outdoor, crowdsourcing, social experiment, social media, behaviour, ambient, belgium, europe, eame, duvall guillaume, city of antwerp, government, public awareness The Selfie Speeding Sign Case StudyDani ComarDecember 08, 2014outdoor, crowdsourcing, social experiment, social media, behaviour, ambient, belgium, europe, eame, duvall guillaume, city of antwerp, government, public awareness