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Ralph has a strong involvement into the transportation and mobility sector. During his career he has built up a large experience in smart ticketing. Since 2005 he is in charge of institutional relations and business development at Calypso Networks Association (CNA) an organisation promoting the adoption of open standards in ticketing on a global scale. From 2014 onwards he is acting Secretary General of the association. Further he is Chairman of the UITP IT&I Commission and chairman of the Smart Ticketing Alliance. He is also member of various associations dedicated to sustainable mobility.