Who is allowed to drive a motor vehicle on this road?

This sign combination means the road is a pedestrian zone, but delivery traffic is allowed. Generally, motor vehicles are not permitted in pedestrian zones unless an exception is stated. The additional sign "Lieferverkehr frei" means only vehicles delivering goods are allowed. Shoppers or visitors driving for personal reasons are not permitted to drive through. You selected correctly: only persons delivering goods are allowed to enter by vehicle. This rule ensures pedestrian safety while still allowing necessary deliveries.