[Ukrainian] wagons is up to 23.5 tons with the maximum allowable 18–20 tons in many neighboring countries. Therefore, in Hungary, Slovakia, and Poland, basically only European wagons can be used.' Specialised freight fleets at Kovel railway station compatible with the European network can move across Ukraine's longest standard-gauge track into Poland, but as of 2022 had not been in use for almost 30 years. Rail and train companies Operators Ukrainian Railways (Ukrzaliznytsia), the state-owned joint-stock company that has a de facto monopoly on rail transport operations in Ukraine. Plans exist for creating a more competitive market. Manufacturers Locomotives Luhanskteplovoz, former producer of locomotives (in 2007-2016 belonged to Russian Transmashholding) Malyshev Factory, former producer of locomotives as Kharkiv Steam-locomotive Factory Dnipro Electrical Locomotive Works, producer of electrical locomotives Ukrzaliznychpostach Vinnytsiatransprylad Ukrainian state center of railroad refrigerated transportation Ukrainian state center in exploitation of specialized rolling stock "Ukrspecrailcar" Railcars Kryukiv Railcar Works, primary producer of small locomotives and railcars Stakhanov Railway Car Building Works, railcar production DniproVahonMash (Dnieper Railcar Works), railcar production Supporting Kryvyi Rih Diesel Engines, diesel engines LuhCentroKuz, rail axles Trams Elektron, producer of tramways Yuzhmash (along with Tatra Yuga), producer of tramways Repair factories Darnytsia Railcar Repair Dnipro Railcar Repair Dnipro Diesel Locomotive Repair Haivoron Diesel Locomotive Repair Hnivan factory of special reinforced concrete Izyum Diesel Locomotive Repair Ivano-Frankivsk Locomotive Repair Lviv Locomotive Repair Kharkiv Railcar Repair Konotop Railcar Repair Korosten factory of reinforced concrete railroad ties Kremenchuk factory of reinforced concrete railroad ties Kyiv Electric Railcar Repair Poltava Diesel Locomotive Repair Popasna railcar maintenance shop Starokostyantyniv factory of reinforced concrete railroad ties Stryi railcar maintenance shop Zaporizhia Electric Locomotive Repair Zhmerynka Railcar Repair Rail stock research Ukrainian Research Institute of Railcar Construction, Kremenchuk Others Central station of communication Donbasshlyakhpostach Main information-calculation center Ukrainian state accounting center of international transportations State company "Ukrainian center of track works mechanization" Lisky Ukrainian center of passenger service (UTsOP) Ukrtransfarmatsia E-kvytok (translate Electronic ticket) Other rail transport in Ukraine Rail transport used for mass transit is usually administered by local government, typically city authorities; this includes trams, subway (metro), funicular and others. There are rapid transit systems in Kyiv, Kharkiv and Dnipro as well as tram systems among which the Kryvyi Rih Metrotram contains underground sections. In mountainous regions various narrow gauge railways are owned and operated privately, sometimes in the form of heritage railways. See also Transport in Ukraine Notes References