A lane terminates on a road with several lanes heading in the same direction. What should you do when driving on the through-lane?

When a lane ends and merges into yours, German traffic rules require the use of the "zipper" or alternate merging procedure ("Reißverschlussverfahren"). This means that vehicles from the terminating lane should merge into your lane one after another, like the teeth of a zipper. As a driver on the through-lane, you must allow vehicles from the ending lane to merge smoothly just before the lane actually ends. Do not speed up to block them or ignore their need to merge; instead, create space and let them in, keeping traffic flowing safely and efficiently. This rule helps prevent traffic jams and reduces the risk of accidents at merge points.