Railway Vehicles Co. Ltd. The 6-car trains were designed in 18 months and all 19 sets are currently operating in passenger service. The trains entered revenue service 23 months after contract award. Lines Line 1 (Orange): Uruguai, Saens Peña, São Francisco Xavier, Afonso Pena, Estácio, Praça Onze, Central, Presidente Vargas, Uruguaiana, Carioca, Cinelândia, Glória, Catete, Largo do Machado, Flamengo, Botafogo, Cardeal Arcoverde, Siqueira Campos, Cantagalo, General Osório. All stations are underground. Cinelândia and Central stations have island platforms. Carioca, Saens Peña, Botafogo and General Osório stations have both side and island platforms, although Saens Peña consists of two island platforms and three tracks. The northernmost of the three tracks appears to be disused and planned for use after the Line 1 extension. Saens Peña is a very busy station, with train turnarounds made very quickly. All other stations have side platforms, up and down tracks are divided by a low wall at stations with side platforms. Siqueira Campos, Carioca, Central, Uruguaiana are Cardeal Arcoverde have a large mezzanine floor between surface and underground tracks. Central, which is a major interchange point between the Metro, local and longer-distance bus lines, and the SuperVia train network, is the busiest station on the network. The Cardeal Arcoverde station was dynamited out of the base of São João Mountain and retains a cavelike structure. General Osório has some painting in the hallways to remember prehistoric attempts at communication. Uruguai Station opened in March 2014, becoming the new terminal station of Line 1 in the North Side of Rio de Janeiro. Line 2 (Green): Pavuna, Engenheiro Rubens Paiva, Acari/Fazenda Botafogo Station, Coelho Neto, Colégio, Irajá, Vicente de Carvalho, Thomaz Coelho, Engenho da Rainha, Inhaúma, Nova América/Del Castilho, Maria da Graça, Triagem, Maracanã, São Cristóvão, Cidade Nova, Estácio (closed on working days). Line 1A: São Cristóvão, Cidade Nova, Central, Presidente Vargas, Uruguaiana, Carioca, Cinelândia, Glória, Catete, Largo do Machado, Flamengo, Botafogo. Line 1A is actually an extension of Line 2 to Botafogo station. Line 2 is elevated from Irajá to Colégio. Many of the stations have island platforms, although Pavuna has both side and island platforms. Underground from Central to Botafogo. Owing to its origin as light rail, it is fully above-ground (except Estácio station, which is underground). Most stations like Irajá and others, have an island platform, whereas some stations like Triagem have side platforms. Maracanã station is directly linked by an overbridge to the