rail lines. The Metro is Rio's safest and cleanest form of public transport in the city. The first line runs from General Osório in Ipanema to Uruguai Station in Tijuca; the second runs from Botafogo terminating at Pavuna in northern Rio; and the third line General Osório to Jardim Oceânico Station, in Barra da Tijuca neighborhood. Integration with buses are possible in several forms. The city also has a commuter rail system operated by SuperVia that connects the city of Rio with other locations in Greater Rio de Janeiro with surface trains. It has 8 lines and , with 102 stations. It carries around 750,000 passengers a day on a railroad network comprising 104 stations in 12 cities: Rio de Janeiro, Duque de Caxias, Guapimirim, Nova Iguaçu, Nilópolis, Mesquita, Queimados, São João de Meriti, Belford Roxo, Japeri, Paracambi and Magé. The Rio de Janeiro Light Rail is a modern light rail system serving with , 42 stations, distributed in 3 lines. The trams are the first in the world to use a combination of ground-level power supply (APS) and on-board supercapacitor energy storage (SRS), in order to eliminate overhead lines along the entire route. The network uses 32 Alstom Citadis 402 low-floor trams carrying 420 passengers each. They are bi-directional, air-conditioned, have seven sections, and eight doors per side. The Santa Teresa Tram is the oldest operating electric tramway in Latin America, commenced electric operation in 1896, replacing horse-drawn trams and extending the route. At this time the gauge was altered to , which remains the case today. It was designated a national historic monument in 1985. After a derailment occurred on 27 August 2011, which left six dead, tram service was suspended to improve the system. The elderly tramcars, which dated from the 1950s, were retired and replaced with newly built replicas that have the appearance of the old fleet but with new mechanical equipment and additional safety features; delivery began in 2014. The line's track was also rebuilt, and after some delays, about one-third of the line reopened in July 2015. More sections reopened later in stages, following repair of additional sections of track. The line was restored to its full pre-2011 length of in January 2019. Ferry The most geographically close sister city to Rio that is on the other side of Guanabara Bay is Niterói. Many people who live in Niterói, as well its neighboring municipalities