Economy of Dresden flights are offered to Frankfurt, Munich, Düsseldorf, Vienna and Moscow. Furthermore, there are a lot of touristic flights especially to the Mediterranean Regions. There is a larger inner harbour in Dresden. The river Elbe waterway connects Dresden with the Hamburg Harbour and Prague. The Midland Canal offers an indirect connection to the Duisport (Duisburg harbour). Dresden is connected by some longer Bundesautobahns: The A 4 to Frankfurt and Cologne, the A 14 is running to Leipzig and Hannover, the A 13 is running to Berlin and the A 17 is running to Prague. The socialist enterprises had been inefficient already
Accession of Hamburg to the German Customs Union (Zollverein) that were previously uncompetitive, now grew extensively. The citizens of Hamburg were driven to make use of articles of German origin much more freely than before, as many of them were cheaper than corresponding foreign articles which were now weighted with a Customs duty. As predicted, the new conditions favoured the development of manufactures in Hamburg itself. With the free port, Hamburg became the leading port in continental Europe and the world's fourth largest after New York, London and Liverpool. This continued the increase of trade prior to the accession, which in 1873- 1887 grew by 44.2%. Nevertheless, outside the