Dortmund Airport is a medium-sized, but fast growing airport 13 km (8.1 mi) east of the city centre at the city limit to Holzwickede. The closest intercontinental airport is D�sseldorf International Airport.
The central train station (Dortmund Hauptbahnhof) is the third largest long distance traffic junction in Germany.
Dortmund Harbour (Hafen) is the largest canal harbour in Europe and the 11th fluvial harbour in Germany.
Dortmund also serves as a major European and German crossroads for the Autobahnsystem. The Ruhrschnellweg follows old Hanseatic trade routes to connect the city with the other metropolises of the Ruhr Area. Connections to the more distant parts of Germany are maintained by the A1 and the A2 which pass closely to the north and east of the city and cross each other at the Kamener Kreuz interchange northeast of Dortmund. Together with the A45 in the west they built the Dortmund Beltway (Dortmunder Autobahnring).
For public transportation, the city has an extensive Stadtbahn and bus system. In April 2008, the newly constructed east-west underground light rail line was opened, completing the underground service in the city centre and replacing the last trams on the surface.
The H-Bahn at Dortmund University of Technology is a hanging monorail built specifically to shuttle passengers between the university's two campuses, which are now also flanked by research laboratories and other high-tech corporations and startups. A nearly identical monorail system transfers passengers at D�sseldorf Airport
