inżynieria: 14th Street bridges

Evidence: 100 • authority: 72

The 14th Street bridges are a set of adjacent five road and rail bridges that cross the Potomac River, connecting Arlington, Virginia and Washington, D.C. A major gateway for automotive, bicycle and rail traffic, the bridge complex is named for 14th Street (U.S. Route 1), which feeds automotive traffic into it on the D.C. end. The complex contains three four-lane automobile bridges—including, from west to east, one southbound, one bi-directional, and one northbound—that carry Interstate 395 (I-395) and U.S. Route 1 (US 1) traffic, as well as a bicycle and pedestrian lane on the southbound bridge. In addition, the complex contains two rail bridges, one of which carries the Yellow Line of the…

Evidence: 74 • authority: 72

The Yellow Line is a rapid transit line of the Washington Metro system that runs between Huntington in Virginia and Mount Vernon Square in Washington, D.C. or Greenbelt in Maryland. It consists of 22 stations in Fairfax County, the city of Alexandria, Arlington County in Virginia, Washington, D.C., and Prince George's County, Maryland. The Yellow Line shares track with the Blue Line between King Street–Old Town and Pentagon and the Green Line between L'Enfant Plaza and Greenbelt. It has only two stations that are not shared by any other lines (Huntington and Eisenhower Avenue) and only two sections of track that are not shared by any other lines – the section south of King Street–Old Town a…

Evidence: 65 • authority: 72

Ronald Reagan Washington National Airport station is a Washington Metro station in Arlington County, Virginia, United States, on the Blue and Yellow Lines. The station platform is elevated and covered and is the last above-ground station on the Yellow Line in Virginia, heading into Washington, D.C. It is one of only two stations in the system to have three tracks; the other is West Falls Church. The station is located across Smith Boulevard from Terminal 2 at Ronald Reagan Washington National Airport; the mezzanine is directly connected to Level 2 of the terminal (security checkpoints/gates level) by two pedestrian bridges. Airport shuttle buses or a walkway connect the station and Terminal…

Evidence: 53 • authority: 72

The Purple Line is a 16.2-mile (26.1 km) light rail line being built to link several Maryland suburbs of Washington, D.C.: Bethesda, Silver Spring, College Park, and New Carrollton. Slated to open in late 2027, the line will enable riders to move between the Maryland branches of the Red, Green, Yellow, Silver, and Orange lines of the Washington Metro, and between all three lines of the MARC commuter rail system, without riding into central Washington. The project is administered by the Maryland Transit Administration (MTA), an agency of the Maryland Department of Transportation (MDOT), and not the Washington Metropolitan Area Transit Authority (WMATA), which operates Metro. Throughout its d…

Evidence: 53 • authority: 72

The Blue Line is a rapid transit line of the Washington Metro system, consisting of 28 stations in Fairfax County, Alexandria and Arlington, Virginia; Washington, D.C.; and Prince George's County, Maryland, United States. The Blue Line runs from Franconia–Springfield to Downtown Largo. The line shares track with the Orange Line for 13 stations, the Silver Line for 18, and the Yellow Line for six on the same segment and seven altogether. Only three stations (Franconia–Springfield, Van Dorn Street, and Arlington Cemetery) are exclusive to the Blue Line. Trains run every 10 minutes during weekday rush hours, every 12 minutes during weekday off-peak hours and weekends, and every 15 minutes dail…

Evidence: 52 • authority: 88

Rail Integrity Experience on the Washington Metro System. The Washington Metropolitan Area Transit Authority (WMATA) provides passenger rail service to the nation’s capital. Although the rail system carries only passenger trains, the rail integrity issues that WMATA must manage are similar to those that freight railroads also face. These issues include occurrences of broken rail from internal rail head defects, detection of such defects, and repair of the rail to restore service. Another example is the development of damage on the running surface of the rail, called rolling contact fatigue (RCF). Such surface damage is known to adversely affect the detection of internal rail head defects be…

Evidence: 52 • authority: 72

Greenbelt station is a Washington Metro and MARC station in Prince George's County, Maryland. The station is the northeastern terminus of both the Green Line and Yellow Line of the Washington Metro. MARC commuter rail trains on the Camden Line also stop at Greenbelt on a set of tracks parallel to the Metro tracks. The station is located in the city of Greenbelt, at its northwestern border (near Berwyn Heights, Beltsville, and the northern part of College Park), off of Cherrywood Lane, near the Capital Beltway. It has a parking lot that contains more than 3,300 spaces, with convenient access both from the inner loop of the Beltway (I-95 southbound) and to the outer loop of the Beltway (I-95…

Evidence: 42 • authority: 72

The Green Line is a rapid transit line of the Washington Metro system, consisting of 21 stations in Washington, D.C., and Prince George's County, Maryland, United States. The Green Line runs from Branch Avenue to Greenbelt, connecting the southeast suburbs to the northeast suburbs through downtown Washington, D.C. It was the last line in the original Metro plan to be constructed. Planning for the Green Line began in 1968, at which point it was supposed to serve some of the poorest neighborhoods in Washington, D.C. Delays arose due to various disputes, including disagreements over funding and the line's routing. Partial service began in 1991. The line was completed on January 13, 2001, with…

Evidence: 42 • authority: 72

U Street station is a rapid transit station on the Green Line and Yellow Line of the Washington Metro in the U Street neighborhood of Washington, D.C. U Street station is located in northwest Washington and serves the U Street neighborhood. The station is approximately five blocks east of the neighborhood of Adams Morgan.

Evidence: 36 • authority: 80

Benefits of Productivity Growth in Rail Transit Construction: The Washington Metro Experience

Evidence: 36 • authority: 80

Managing the wheel–rail interface: Europe Metro experience on the London Underground Victoria Line

Evidence: 36 • authority: 80

Can Better Transportation Infrastructure Help Bridge the Gender Mobility Gap? Analysis of the Dhaka Metro Rail