border) - Malacky - Bratislava - Jarovce (SK/H border) D3: Dolný Hričov - Žilina - Čadca - Skalité(SK/PL border) D4: Jarovce - (SK/A border) Expressways in Slovakia 311 km (193 mi) R1: Trnava - Nitra - Zvolen - Banská Bystrica R2: (SK/CZ border) - Trenčín - Prievidza - Zvolen - Rimavská Sobota - Košice R3: (SK/H border) - Zvolen - Martin - (SK/PL border) R4: (SK/H border) - Košice - Prešov - Svidník - (SK/PL border) R5: Svrčinovec - (SK/CZ border)R6: Beluša - Púchov - (SK/CZ border) R7: Bratislava - Nové Zámky - Krupina - Lučenec Waterways 172 km on the Danube used both by passenger, cargo and freight ships of nearly all sizes. Pipelines petroleum products 416 km; natural gas 6,769 km (2010) gas pipelines 162 km Crude oil 19 km Ports and harbors Port of Bratislava Port of Komárno Airports See:List of airports in Slovakia total: 37 (2012) Airports with paved runways (2012) Airports with unpaved runways total: 18 914 to 1,523 m: 10 under 914 m: 8 (2002) Heliports total: 5 (2022) Municipal transport Bus and trolleybus Most towns and cities in Slovakia have well developed bus networks. Most of the busses are operated by the city or town council but most regional buses are operated by private operators with the permission of local authorities or the county council. There's as well a trolleybus system which only operates in large cities and are operated by the town council. They are a much more of an ecological system of transport then a standard bus Tram Trams are only found in Bratislava and Kosice. The first tram to arrive in Slovakia was in 1895 in Bratislava and then later on in 1913 trams arrived in Kosice.Today the tram network is expanding rapidly in both cities. See also Rail transport in Slovakia Slovakia Highways in Slovakia List of airports in Slovakia References External links Highways in Slovakia