Ir. Rolf Appel has been working for ARS T&TT since 2011 and is Director of the business unit Parking since 2016. Rolf is responsible for all ARS T&TT business in the Parking segment, from sales, delivery, solutions, operations and people management. Previously, Rolf was Operational Director at ARS T&TT and also held various positions in the ITS segment at CGI (Logica). Rolf has a master's degree Informatics at the University of Twente.