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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]
![Metro D Route pocket track [01]](../../../i/upload/2024/07/14/20240714235123-98bd274e-cu_s9999x250.jpg "Metro D Route pocket track [01] (2422 visits) D Route pocket track on the Washington Metro system, showing the interlockings and the signal. This ...")
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Metro D Route pocket track [02]
![Metro D Route pocket track [02]](../../../i/upload/2024/07/15/20240715141423-2fe25243-cu_s9999x250.jpg "Metro D Route pocket track [02] (2732 visits) D Route pocket track on the Washington Metro system, showing the interlockings and the signal. This ...")
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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]
![Fire alarm at Shaw-Howard University station [01]](../../../i/upload/2025/03/05/20250305020353-34574f7a-cu_s9999x250.jpg "Fire alarm at Shaw-Howard University station [01] (308 visits) Wheelock 34T fire alarm horn in in a back corridor at the Shaw-Howard University Metro station in Wa...")
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Fire alarm at Shaw-Howard University station [02]
![Fire alarm at Shaw-Howard University station [02]](../../../i/upload/2025/03/05/20250305020401-ed656974-cu_s9999x250.jpg "Fire alarm at Shaw-Howard University station [02] (337 visits) Wheelock 34T fire alarm horn in in a back corridor at the Shaw-Howard University Metro station in Wa...")