+---------+
| Zwickau |
+---------+
^
|
|
+------------------------------+ |
| Hannover | |
+------------------------------+ |
| | | |
| | | |
v v v |
+--------++--------++----------+ |
| Aachen || Berlin || Cuxhaven | |
+--------++--------++----------+ |
| | | |
+---------+---------+-----------+