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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 [02]
![Metro D Route pocket track [02]](../../../i/upload/2024/07/15/20240715141423-2fe25243-cu_s9999x250.jpg "Metro D Route pocket track [02] (2623 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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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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Court Street interlocking board
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Signal FT8 at 15th Street station
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View west from Roosevelt platform
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View east from Roosevelt platform
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CTA signal A59 at Jackson station [01]
![CTA signal A59 at Jackson station [01]](../../../i/upload/2024/11/13/20241113234023-75426ee0-cu_s9999x250.jpg "CTA signal A59 at Jackson station [01] (864 visits) Signal A59 shows a green aspect at Jackson, a station on the CTA Red Line in Chicago, Illinois.
Mor...")
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CTA signal A59 at Jackson station [02]
![CTA signal A59 at Jackson station [02]](../../../i/upload/2024/11/13/20241113234044-b800d5a0-cu_s9999x250.jpg "CTA signal A59 at Jackson station [02] (762 visits) Signal A59 shows a green aspect at Jackson, a station on the CTA Red Line in Chicago, Illinois.
Mor...")
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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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Railroad crossing at Maiden Lane [01]
![Railroad crossing at Maiden Lane [01]](../../../i/upload/2025/03/08/20250308225400-a196ec7a-cu_s9999x250.jpg "Railroad crossing at Maiden Lane [01] (210 visits) CSX locomotive 2783 leads a freight train as it passes the railroad grade crossing at Maiden Lane in...")
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Railroad crossing at Maiden Lane [02]
![Railroad crossing at Maiden Lane [02]](../../../i/upload/2025/03/08/20250308225406-7551217c-cu_s9999x250.jpg "Railroad crossing at Maiden Lane [02] (263 visits) Light on a crossing gate on the west side of the railroad grade crossing at Maiden Lane in Fayettevi...")
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Railroad crossing at Maiden Lane [03]
![Railroad crossing at Maiden Lane [03]](../../../i/upload/2025/03/08/20250308225413-4c2b23ba-cu_s9999x250.jpg "Railroad crossing at Maiden Lane [03] (228 visits) Level crossing signal on the west side of the railroad crossing at Maiden Lane in Fayetteville, Nort...")