Where is parking prohibited?

Your selected combinations for where parking is prohibited are correct as they align with German traffic regulations. Parking is not allowed at the edge of the roadway if it obstructs the use of designated parking areas, which ensures that available spaces are utilized effectively. Additionally, parking before sunken kerbstones is prohibited because it can impede drainage or access for pedestrians.

Understanding these rules is essential to maintain smooth traffic flow and ensure the safety of both drivers and pedestrians. Each selected option addresses specific situations where parking could create hazards or inconvenience.