In Silesia, the ongoing infrastructure projects focus on expanding Highway A4 and introducing new express roads S1 and S11, which are intended to enhance the efficiency of transit traffic and connectivity in the heavily congested cities of the Silesian agglomeration. The A4 expansion particularly emphasizes maintaining road access during construction work, while some sections of S1 are scheduled to open to traffic even before the full completion of the project. Preparatory tenders for the S11 road have also been announced, highlighting the urgency of these developments.

The upgrade of Highway A4 will include the addition of an extra traffic lane from the border of Silesia and Opole Voivodeships to the junction, aimed at reducing traffic congestion. This expansion is crucial for improving the flow of vehicles in one of Poland's most trafficked areas, which faces significant challenges due to increasing vehicular movement. The overall objective is not only to enhance transit but also to support local transport systems and promote economic growth in the region.

With these developments in Silesia, there is an overarching acknowledgment of the role that efficient transportation infrastructure plays in regional prosperity. By aiming for timely completion of these road upgrades, local authorities hope to create a more robust transportation network that can support both local and national traffic demands effectively, thus fostering better economic conditions and quality of life for residents of the Silesian agglomeration.