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June 2009 Washington Metro Train Collision
During the afternoon rush hour of June 22, 2009, a subway train wreck occurred between two southbound Red Line Washington Metro trains in Northeast, Washington, D.C., United States. A moving train collided with a train stopped ahead of it; the train operator along with eight passengers died, and 80 people were injured, making it the deadliest crash in the history of the Washington Metro. The National Transportation Safety Board (NTSB) investigation found that after a June 17 replacement of a track circuit component at what became the crash site, the track circuit had been suffering from parasitic oscillations which left it unable to reliably report when that stretch of track was occupied by a train. The struck train came to a stop because of traffic ahead. Because the entire train was within the faulty circuit, it became invisible to the Automatic Train Control (ATC) system. The train behind it was therefore commanded to proceed at . The operator of the striking train appli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NTSB
The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation. In this role, the NTSB investigates and reports on aviation accidents and incidents, certain types of highway crashes, ship and marine accidents, pipeline incidents, bridge failures, and railroad accidents. The NTSB is also in charge of investigating cases of hazardous materials releases that occur during transportation. The agency is based in Washington, D.C. It has four regional offices, located in Anchorage, Alaska; Denver, Colorado; Ashburn, Virginia; and Seattle, Washington. The agency also operates a national training center at its Ashburn facility. History The origin of the NTSB was in the Air Commerce Act of 1926, which assigned the United States Department of Commerce responsibility for investigating domestic aviation accidents. Before the NTSB, the Federal Aviation Administration's (FAA; at the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DC Metro Train Crash In 2009
DC, D.C., D/C, Dc, or dc may refer to: Places * Washington, D.C. (District of Columbia), the capital and the federal territory of the United States * Bogotá, Distrito Capital, the capital city of Colombia * Dubai City, as distinct from the Emirate of Dubai Science, technology and mathematics * DC or Direct current, electric current which flows in only one direction ** DC bias, a waveform's mean value ** Decicoulomb (dC), a unit of electric charge * Dené–Caucasian languages, of east Asia and western North America * New Zealand DC class locomotive * Methylphosphonyl dichloride, a chemical weapons precursor Biology and medicine * DC., standard author abbreviation for botanist Augustin Pyramus de Candolle (1778-1841) * Dendritic cell, a type of immune cell * Doctor of Chiropractic, a qualification in alternative medicine Computing * dc (computer program), a desktop calculator * DC coefficient a.k.a. constant component in discrete cosine transform * Data center, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Construcciones Y Auxiliar De Ferrocarriles
Construcciones y Auxiliar de Ferrocarriles (Grupo CAF, literally "Construction and Other Railway Services") is a Spanish publicly listed company which manufactures railway vehicles and equipment and buses through its Solaris Bus & Coach subsidiary. It is based in Beasain, Basque Autonomous Community, Spain. Equipment manufactured by Grupo CAF includes light rail vehicles, rapid transit trains, railroad cars and locomotives, as well as variable gauge axles that can be fitted on any existing truck or bogie. Over the 20 years from the early 1990s, CAF benefited from the rail investment boom in its home market in Spain to become a world player with a broad technical capability, able to manufacture almost any type of rail vehicle. CAF has supplied railway rolling stock to a number of major urban transit operators around Europe, the US, South America, East Asia, India, Australia and North Africa. History ''CAF'' was an acronym for the earlier name of ''Compañía Auxiliar de Fer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AnsaldoBreda
Hitachi Rail Italy S.p.A. is a multinational rolling stock manufacturer company based in Pistoia, Italy. Formerly AnsaldoBreda S.p.A., a subsidiary of state-owned Finmeccanica, the company was sold in 2015 to Hitachi Rail of Japan. After the deal was finalized, the current name was adapted in November 2015 to reflect the new ownership. History Early history: Ansaldo and Breda Ansaldo In 1853, the company '' Gio. Ansaldo & C.'' was registered in Genoa as a manufacturer of steam locomotives, rail rolling stock and steam engines. The company was backed by Camillo Benso, Count of Cavour, the powerful finance minister of Piedmont-Sardinia, who aimed to reduce its dependence on imported trains and rolling stock. Ansaldo entered the age of the steam locomotive in 1854 with its model FS113, also known as ''Sampierdarena''. During the First world war, Ansaldo became a large supplier of weapons to the Italian army; facing insurmountable difficulties with post-war reconversion to civilia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
June 22, 2009 WMATA Collision - NTSB Accident Photo 439404
June is the sixth month of the year in the Julian and Gregorian calendars and is the second of four months to have a length of 30 days, and the third of five months to have a length of less than 31 days. June contains the summer solstice in the Northern Hemisphere, the day with the most daylight hours, and the winter solstice in the Southern Hemisphere, the day with the fewest daylight hours (excluding polar regions in both cases). June in the Northern Hemisphere is the seasonal equivalent to December in the Southern Hemisphere and vice versa. In the Northern Hemisphere, the beginning of the traditional astronomical summer is 21 June (meteorological summer begins on 1 June). In the Southern Hemisphere, meteorological winter begins on 1 June. At the start of June, the sun rises in the constellation of Taurus; at the end of June, the sun rises in the constellation of Gemini. However, due to the precession of the equinoxes, June begins with the sun in the astrological sign of G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosslyn Station
Rosslyn is the westernmost station on the shared segment of the Blue, Orange, and Silver lines of the Washington Metro. It is located in the Rosslyn neighborhood of Arlington, Virginia, United States. Rosslyn is the first station in Virginia heading westward from the District on the Orange and Silver Lines and southward on the Blue Lines. It is one of four interchange points on the Metrorail system west of the Potomac River and located in a growing business district. Depending on the year, Rosslyn is the busiest, or one of the busiest stations outside the District of Columbia, along with and , which are also in Arlington, and Silver Spring and Shady Grove in Montgomery County, Maryland. Rosslyn is the biggest choke point of the Metro system. Due to this, planners are considering adding another station in the Rosslyn neighborhood, possibly as part of an inner loop through Washington and Arlington. Location The station has entrances on the west side of North Moore Street be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foggy Bottom–GWU Station
Foggy Bottom–GWU Kennedy Center is an island platformed Washington Metro station serving The George Washington University campus in the Foggy Bottom neighborhood of Washington, D.C., United States. The station was opened on July 1, 1977, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). Providing service for the Blue, Silver, and Orange Lines, the station is located on I Street on the George Washington University (GWU) campus. It is the last westbound station in the District of Columbia on these lines before they dive under the Potomac River to Virginia. History The station opened on July 1, 1977. Its opening coincided with the completion of of rail between National Airport and RFK Stadium and the opening of the Arlington Cemetery, Capitol South, Crystal City, Eastern Market, Federal Center SW, Federal Triangle, L'Enfant Plaza, McPherson Square, National Airport, Pentagon, Pentagon City, Potomac Avenue, Rosslyn, Smithsonian and Stadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WTOP-FM
WTOP-FM (103.5 FM) – branded ''WTOP Radio'' and ''WTOP News'' – is a commercial all-news radio station licensed to serve Washington, D.C. Owned by Hubbard Broadcasting, the station serves the Washington metropolitan area, extending its reach through two repeater stations: WTLP (103.9 FM) in Braddock Heights, Maryland, and WWWT-FM (107.7) in Manassas, Virginia. The WTOP-FM studios, referred to on-air as the "WTOP Glass-Enclosed Nerve Center", are located in the Washington D.C. neighborhood of Friendship Heights, while the station transmitter is located on the American University campus. Besides a standard analog transmission, WTOP-FM broadcasts over three HD Radio channels, and is available online. Historically, the 103.5 FM facility is perhaps best known as WGMS-FM, which operated with a commercial fine arts and classical music format from 1948 until 2006. WTOP-FM is considered the successor station to WTOP (1500 AM), now WFED, a station founded in Brooklyn, New York City ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NBC Washington
WRC-TV (channel 4) is a television station in Washington, D.C., airing programming from the NBC network. It is owned-and-operated station, owned and operated by the network's NBC Owned Television Stations division alongside Class A television service, Class A Telemundo outlet WZDC-CD (channel 44). WRC-TV and WZDC-CD share studios on Nebraska Avenue in the Tenleytown neighborhood of Northwest, Washington, D.C., Northwest Washington. Through a frequency sharing, channel sharing agreement, the stations transmit using WRC-TV's spectrum from a tower adjacent to their studios. History The station traces its roots to history of television, experimental television station W3XNB, which was put on the air by the Radio Corporation of America, the then-parent company of NBC, in 1939. A construction permit with the commercial call signs in North America, callsign WNBW (standing for "NBC Washington") was first issued on channel 3 (60–66 MHz, numbered channel 2 prior to 1946) on Decembe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Springfield, Virginia
Springfield is a census-designated place (CDP) in Fairfax County, Virginia, United States. The Springfield CDP is recognized by the U.S. Census Bureau with a population of 30,484 as of the 2010 census. Homes and businesses in bordering CDPs including North Springfield, West Springfield, and Newington are usually given a Springfield mailing address. The population of the collective areas with Springfield addresses is estimated to exceed 100,000. The CDP is a part of Northern Virginia, the most populous region of the Washington Metropolitan Area. Geography Springfield is located at (38.779238, −77.184636). According to the United States Census Bureau, the CDP has a total area of 7.9 square miles (20.4 km2), of which, 7.9 square miles (20.3 km2) of it is land and 0.04 square miles (0.1 km2) of it (0.49%) is water. The area is dominated by the interchange of I-95, I-395, and the Capital Beltway (I-495), known as the Springfield Interchange. The ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorman (locomotive)
A motorman is a person who operates a tram (streetcar), light rail, or rapid transit train. A motorman is in charge of operating their train, applying power to traction motors, in the same sense as a railroad engineer is in charge of the engine. The term was and, where still used, is gender-neutral. Though motormen have historically been men, women in the position (first appearing in the United States during the World Wars) were usually also called motormen as a job title. Twin City Lines adopted the diminutive "motorette" for their women employees. The term has been replaced by more neutral ones, as gender-specific job titles have fallen into disuse. On systems such as the New York City Subway and London Underground, the position is now called "train operator" (T/O). After transitioning to one-person operation on the Chicago "L", use of "operator" came as a replacement term after motormen assumed the additional responsibilities previously of the conductor's. The operator of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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