Bologna is also a strategic railway hub that offers numerous rail connections with Europe and the rest of Italy. The Bologna Interport is located in an area of fundamental importance for freight traffic, as it is the intersection between Corridor 3 (Mediterranean), Trans-European Corridor 5 (Helsinky-La Valletta) and Corridor 1 (Baltic-Adriatic ). The high-capacity Mercitalia Fast line connects the Marcianise freight terminal, and therefore Southern Italy, with the Bologna freight port. Finally, the role of air traffic is growing, making the Bologna-Borgo Panigale airport one of the main Italian airports in terms of the number of national and international destinations, for frequent connections with major European hubs and for ever-growing passenger traffic.