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Rosslyn tunnel portal
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Metro and CSX tracks in Northeast DC
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Metro D Route pocket track [01]
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Metro D Route pocket track [02]
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Interlocking signal at Anacostia station
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Silver Spring pocket track
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Largo Town Center interlocking
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Traffic lights outside Greensboro station
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Interlocking signal at Sheppard-Yonge
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Interlocking signal at 72nd Street on the Second Avenue Subway
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Fire alarm strobe at Fulton Street station
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Red Wheelock RSS strobe at New York Transit Museum
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Court Street interlocking board
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Signal FT8 at 15th Street station
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Signal X-238 at East 55th Street station
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Route selector box at East 55th Street station
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Fire alarm at Shaw-Howard University station [01]
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Fire alarm at Shaw-Howard University station [02]