What are the special features of semi-trailer trucks with short coupling systems?

The combination of answers you selected is correct because it highlights key characteristics of semi-trailer trucks with short coupling systems according to German traffic regulations.

1. The cornering characteristics being different from conventional articulated trucks indicates that these vehicles have a unique turning radius and handling dynamics, which are essential for safe navigation, especially in urban environments where tight turns are frequent.

2. The coupling device being subject to a higher level of wear is crucial for maintenance and safety. German law emphasizes the importance of regular inspections and maintenance for coupling systems to prevent accidents caused by worn-out components.

3. The larger useful loading area compared to conventional articulated trucks signifies that these vehicles can be more efficient in transporting goods, which is a priority in promoting efficient logistics and reducing the number of trips needed.

Recognizing all three of these factors is important for understanding the operational limits and safety requirements of using semi-trailer trucks with short coupling systems on German roads.