MergingPoland
An introduction to the traffic rules and road signs of Poland. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.
For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.
62. Merging
Merging is the process of joining a stream of traffic from another lane or road, such as when an entry lane joins a motorway or when two traffic lanes become one. The merging driver must observe surrounding traffic, signal when required and enter an appropriate gap safely.
Drivers already in the continuing traffic lane should remain alert to merging vehicles and avoid unnecessarily preventing them from joining. Special zipper-merging rules may apply when traffic is heavily congested and a lane ends.
Wikimedia.org • Adrian Grycuk • CC BY-SA
When does Poland’s zipper rule apply?
When speeds are significantly reduced and an obstruction or lane ending prevents continuation.
🔗 eli.gov.pl • Poland, Road Traffic Law — articles 19, 22(4)–(4b), 23; Signs 7 and 72
Where should Polish zipper merging take place?
Immediately before the obstruction or lane ending, letting one vehicle or combination enter.
🔗 eli.gov.pl • Poland, Road Traffic Law — articles 19, 22(4)–(4b), 23; Signs 7 and 72
What if both outer Polish lanes end?
The continuing centre lane admits one vehicle from the right, then one from the left.
🔗 eli.gov.pl • Poland, Road Traffic Law — articles 19, 22(4)–(4b), 23; Signs 7 and 72

Traffic rules
Poland