Biotren

The first commuter raile service in Greater Concepción was inaugurated on 1 December 1999, running between El Arenal and Valle del Sol stations, using Japanese-built AEL Electric Multiple Units. The service was extended to Hualqui in 2001, adding four more stations, and in 2005 the service would be rebranded as Line 1 of the Biotren, a rebranding of the commuter rail system under the 2Biovías" project by then Chilean president Ricardo Lagos. A second Line between Concepción station and Lomas Coloradas in San Pedro de la Paz opened the same year, and it was during this time that the old Japanese-built AEL and AES units being replaced by refurbished UT440 units previously operated by Renfe in Spain. In 2014, Line 2 was extended to Alborada station, and in 2016 it was extended again to Coronel, containing 14 stations in total, with a proposed extension to Lota adding up to five more. On 1 September 2023, one of the trains operating on line 2 collided with a passenger bus in a level crossing in San pedro de la Paz, killing 8 people. == Architecture ==

Biotren stations or Bio Stations have a totally renewed architecture compared to the former system. The platforms have roofs and access for the handicapped. The fare is paid at the entrance and exit of the stations using a prepayment card called Biovías, with a deferred payment system according to the distance travelled. The card's recharge can be made in any station. == Rolling stock ==

The Empresa de Los Ferrocarriles del Estado (EFE) invested a total of US $16.800.000 for the trains used in the system. The current fleet is composed of eight trains UT-440 Modelo Concepción of three wagons each, bought from the Red Nacional de Ferrocarriles Españoles (Spain State Railways, RENFE). The trains are painted orange and have 321 seats (20 folding seats) and a capacity of 590 passengers. == Lines ==

Line 1 Line 1: It crosses all Concepción from North to South, from "Mercado" Terminus Station (Port of Talcahuano) to "Hualqui" Terminus Station (Hualqui). Bio Stations: • Mercado • El Arenal • Hospital Higueras • Los Cóndores • Universidad Técnica Federico Santa María • Lorenzo Arenas • Concepción • Chiguayante • Pedro Medina • Manquimávida • Leonera • Hualqui Line 2 Line 2: It crosses the Bío-Bío river on the upgraded Puente Ferroviario (Railroad Bridge) Bío-Bío, the longest of its kind in Chile. The line starts, from downtown to west side, in the "Concepción" Exchange (or Intermodal) Station (Civic District, Concepción Centro) and ends in the "intermodal coronel" Terminus Station (comuna de Coronel). Bio Stations: • Concepción • Juan Pablo II • Diagonal Bío-Bío • Alborada • Costa Mar • El Parque • Lomas Coloradas • Cardenal Raúl Silva Henríquez • Hito Galvarino • Los Canelos • Huinca • Cristo Redentor • Laguna Quiñenco • Coronel == Exchange System ==

The Exchange or Intermodal Bio Stations have personal bicycle parking lockers for those who arrive by cycle paths (except for El Arenal) to take the Biotren and synchronization with combination buses called Biobuses. == See also ==