The International Institute for Information Design (IIID) has issued a call for speakers for the 6th IIID Expert Forum Traffic & Transport Information Systems, being held on 8-9 September, 2011, in Vienna Austria. This year's event is focused on Traffic, Transport and Social Media, and in addition to the main conference, Innovations in traffic & transport information is a special session focused on innovative projects and results beyond real time information. The session is geared to the interests of inform