The Baltic-Adriatic Corridor is one of the most important trans-European road and railway axes.It connects the Baltic with the Adriatic Sea, through industrialized areas between Southern Poland (Upper Silesia), Vienna and Bratislava, the Eastern Alpine region and Northern Italy.It comprises important railway projects such as Semmering base tunnel and Koralm railway in Austria and cross-border sections between Poland, Czech Republic and Slovakia.This 2400 km long corridor will connect the Baltic ports in Poland with the ports of the Adriatic Sea. It starts at the harbours of Gdansk and Gdynia, connecting via strong economic centres like Warsaw, Vienna and Venice to Trieste and Ravenna. The corridor has some branches from Szczecin to Katowice, from Graz via Udine to Trieste as well as via Ljubljana to Trieste/Koper. The corridor will provide better access to Baltic and Adriatic seaports for the economic centres in Poland, the Czech Republic, Slovakia and Austria. It encompasses the present Priority Projects 23 and 25 and Rail Freight Corridor 5 (Gdansk-Ravenna). Achievements: During the last decade some road and rail sections along the Baltic-Adriatic-Corridor have been upgraded, renovated or build in Poland, Czech Republic and Slovakia. In Austria the works to eliminate bottlenecks or missing links started or are close to being terminated: The building of the new Vienna railway station is going to be finished by 2015. The station was already partly opened in 2012.The works at the 30 km long Koralm-Tunnel started in April 2011. This tunnel will provide the first direct rail link between Klagenfurt and Graz in Austria. Once operational in 2022, the travelling time from Vienna to Klagenfurt will be shortened from 4 to 2.5 hours. The travel time between Warsaw and Klagenfurt will be reduced by over 3 hours (compared to the current almost 12 hours to get from Warsaw to Klagenfurt, in 2025 it should take less than 9 hours).The preparatory works at Semmering Base Tunnel (27.3 km, 230 km/hmax) started in April 2012.In Italy, the so-called Pontebbana line has been double tracked, electrified and drastically improved in the 1990ies already.