Rhine-Ruhr S-Bahn Rhine-Ruhr S-Bahn The Rhine-Ruhr S-Bahn () is a polycentric and electrically driven S-train network covering the Rhine-Ruhr Metropolitan Region in the German federal state of North Rhine-Westphalia. This includes most of the Ruhr (and cities such as Dortmund, Duisburg and Essen), the Berg cities of Wuppertal and Solingen and parts of the Rhineland (with cities such as Cologne and Düsseldorf). The easternmost city within the S-Bahn Rhine-Ruhr network is Unna, the westernmost city served is Mönchengladbach. The S-Bahn operates in the areas of the Verkehrsverbund Rhein-Ruhr (VRR) and Verkehrsverbund Rhein-Sieg (VRS) tariff associations, touching areas of Aachener Verkehrsverbund at Düren
International Authority for the Ruhr International Authority for the Ruhr The International Authority for the Ruhr (IAR) was an international body established in 1949 by the Allied powers to control the coal and steel industry of the Ruhr Area in West Germany. Its seat had been in Düsseldorf. It was agreed at meetings in London on 20 April and 2 June 1949 by the United States of America, the United Kingdom, France and the Benelux countries. The London agreement was signed on 28 April of that year. It was abolished by the Treaty of Paris in 1951, which moved its activities to the European Coal