The Blue Line is a rapid transit line of the Washington Metro system, consisting of 28 stationsin 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 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. Termini Franconia-Springfield Largo Stations 28 Type Rapid transit System Washington Metro Rolling Stock Breda 3000 Series Line length 30.3 mi (48.8 km) Character At-grade, elevated, and underground Track gauge 4ft 8+1/4 in (1,429 mm) Electrification Third rail, 750 V DC
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