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Rijswijk-Rotterdam High-Frequency Rail Transport Programme



The international cities network of Rotterdam

Romania, Constanta, sister city since 1976

Constanta is a Romanian port on the Black Sea. The city has a population in excess of 300,000 and processes more than half of the total Romanian international trade. It is also an important industrial centre and a popular stylish seaside resort. The ancient Greeks call the city Tomis, which was later chanced to Constanta by the Romans.

Poland, Gdansk/Gdynia, sister city since 1977

Gdansk is the most important port in Poland. The city lies on the Baltic Sea, to the west of the mouth of the river Wista. Gdansk, Gdynia and Sopot make up the urban area. Gdansk has a population of half a million and is about twice as large as Gdynia. The industry, such as shipping and fishing, is closely linked to the port. The city was almost completely burnt during allied bombing in 1945, but many old buildings have since been restored. Gdynia was one of the largest harbours on the Baltic Sea until 1939, but it was also heavily hit during the second world war. Although the city was spared, the harbour was completely destroyed.