Take exit 17 (Kanaleneiland / Jaarbeurs / Transferium) from the A12 and follow the signs to P+R Westraven. Every seven minutes (at the weekend every 10 minutes) you can take a free tram from here to the city centre. The nearby tram (Nr. 60 and 61) will take you to the Central Station in exactly 12 minutes. Buses Nr. 60, 61, 65, 66, 71, 74, 77 and 272 also drive to the centre.