The principle articulation of the building volume is made parallel to the transportation arteries referred to above. An elongated volume along Hadikgasse contains sales and consultancy facilities for members and clients on the ground floor, with the administration offices on the upper floor. Between this volume and Hackinger Straße is the large single-storey inspection hall, whose roof serves as a car park for clients of the OEAMTC support point. It is flanked by the necessary turning and circulation areas.