Road transport is most commonly used out of other modes in terms of freight and passenger transportation on local and regional levels. For European citizens it is a primary mean of their access to services, social activities and employment. The scope of road infrastructure differs in some regions. The major disparity appears when the East of Europe is compared with the West. Actions to link periphery with the core of Europe are being continuously performed, what in this case represents itself in constructing Pan-European Transport Corridors, which will contribute to the connection of the whole territory of Europe. The Via Baltica, chosen as a case for this thesis, is a route to connect Helsinki, Tallinn, Riga, Kaunas, Budzisko and Warsaw. It is the common initiative of Finland, Estonia, Lithuania, Latvia and Poland. In addition, it is to be an express road and part of the I Pan-European Transport Corridor, which is going to connect Baltic countries with the West and South part of Europe. We focus on presenting how the Via Baltica is introduced in official documents and compare it with the process in practice. Our final goal is to assess the planning process of the Via Baltica route in Poland according to top down planning approaches and sustainability criteria. We are trying to find out what are the advantages and disadvantages of the ongoing process. After introducing results of the analysis made for the Via Baltica by Polish experts, we present how stakeholders and local authorities try to reinforce the process, regardless of environmental issues, to achieve economic and social profits. As the result we try find out how are the dimensions of sustainable development handled in the Via Baltica case in Poland. The conclusions are based on our findings concerning several conflicts which appeared during the planning process. They are also based on one-dimension as well as multi-criteria analyses.