Events January events January 1 – METRORail light rail service in Houston, Texas, opens. February events February – Pacific National takes over Australian Transport Network. February 3 – The first freight train travels the entire north-south transcontinental railroad in Australia between Adelaide, South Australia, and Darwin, Northern Territory. February 6 – A suicide bomber kills 41 people near Avtozavodskaya subway station on Moscow Metro's Zamoskvoretskaya Line. See: February 2004 Moscow Metro bombing March events March 11 – 2004 Madrid train bombings: Simultaneous bombings on Cercanías commuter trains in Madrid (Spain) kill 191 people and injure more than 1,800. March 13 – First services are operated by M250 series Super Rail Cargo high speed freight electric multiple units of the Japan Freight Railway Company. March 20 – An agreement between the governments of Thailand and Laos is signed to extend the railway to Thanaleng Railway Station in Laos, about 3.5 km (2.2 mi) from the Thai–Lao Friendship Bridge, which would become the first railway link to Laos. March 28 – First services operate on Binhai Mass Transit (or Jinbin light rail) in Tianjin, China, including No. 1 bridge (25.8 kilometres (16 mi) in length). March 30 – High-speed train service is inaugurated in Korea between Seoul and Daegu. April events April – The United States Court of Appeals for the Eighth Circuit in Pierre, South Dakota, rules that the Dakota, Minnesota and Eastern Railroad may use eminent domain to purchase land in South Dakota in order to build the railroad's extension into Wyoming's Powder River Basin. April – Great North Eastern Railways, operators of services on the East Coast Main Line in England and Scotland, introduce 802.11b wireless LAN access to the Internet on their Mallard InterCity 225 trains. April 1 – High speed train service is inaugurated in Korea between Seoul and Busan; the trains make the trip in 2 hours and 40 minutes. April 1 - Tokyo subway system, Tokyo Metro replaced and private company from Teito Rapid Transit Authority. April 5 - The Manila Line 2 commenced almost full commercial operations by opening the segment from Araneta Center–Cubao Station up to Legarda Station. April 6 – Amtrak passenger train City of New Orleans en route to Chicago from New Orleans derails near Flora, Mississippi, resulting in one fatality. April 18 – Connex takes over the half of the Melbourne suburban rail network formerly operated by M>Train. April 29