at a frequency of 6 minutes to half an hour between trains (depending on the time of day). It is comparable to subway service or light rail in other European cities. The Tricity area is uniquely suited for this mode of transport, as it's shaped in a relatively narrow north–south corridor between the Gdańsk Bay and the Tricity Landscape Park. PKP Linia Hutnicza Szerokotorowa PKP LHS is a company of the PKP Group responsible for infrastructure operation and freight transport on the Broad Gauge Metallurgy Line. The line runs for about 400 km from the Polish-Ukrainian border in Izow-Hrubieszów to Sławków Południowy (near Katowice). The line was opened in 1979 and was used to import iron ore from the USSR, as well as to export coal and sulphur from Poland. After the fall of communism and the economic changes of 1989 traffic on the line has much diminished. At present various schemes are being tried to increase its profitability. This line runs as a single-track line for almost 400 km, from the Polish-Ukrainian border crossing just east of Hrubieszów to Sławków Południowy (near Katowice). It is used only for freight traffic, mainly iron ore and coal. It is the westernmost broad gauge railway line in Europe that is connected to the broad gauge rail system of the countries which before 1991 constituted the Soviet Union. Transfer of regional services to Przewozy Regionalne Until December 22, 2008, Przewozy Regionalne was a wholly owned subsidiary of the PKP Group; after that date, all of its shares have been transferred to Poland's 16 regional governments. Thus, the company is no longer part of the PKP Group and on interregional routes its InterRegio trains compete with PKP Intercity TLK trains. This was done in order to increase competition amongst operators on the Polish rail network. The company finally changed its name from PKP Przewozy Regionalne to Przewozy Regionalne on December 8, 2009. Przewozy Regionalne now operates a large range of domestic rail services under the following brands: Regio (local passenger services which stop at all stations), RegioPlus (semi-fast local passenger services which stop at a lesser number of stops than Regio but for which tickets do not cost more), InterRegio (low-cost, fast inter-regional services with 2nd class only and which stop at medium and major stations only) and RegioEkspres (fast trains on international routes with both 1st and 2nd class). For domestic routes, InterRegio