From Tychy to Bielsko-Biała, the existing dual-carriageway national road 1 serves the traffic.

[2] (northbound) Other name: Kosztowy-II(passing the stages to achieve the environmental decision) As of the end of May 2016 six options for the route were proposed.

It would have gone parallel to Brzeszcze – Oświęcim railway tracks (PKP rail line 93).

However, UNESCO protested against the choice, as, in their opinion, the traffic would have disrupted the zone of silence around the former German concentration camp Auschwitz-Birkenau, and, as the result, UNESCO would have put the camp onto the endangered list.

The road would have passed through the "Stawy w Brzeszczach" reserve for birds conservation, which was not acceptable.