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Rockville Bridge [01]
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Rockville Bridge [03]
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Railroad tracks between River Road and US 22/322 [02]
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Railroad tracks between River Road and US 22/322 [01]
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Fire alarm horn/strobe at New Street parking garage [01]
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Fire alarm horn/strobe at New Street parking garage [02]
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Railroad crossing at Williams Road [01]
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"Darth Vader" railroad signals
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Allied Arts Building [01]
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Fire alarm at Trenton Park & Ride [01]
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Fire alarm at Trenton Park & Ride [02]
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Metro and CSX tracks in Northeast DC
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Railroad crossing at Williams Road [02]
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Metro D Route pocket track [02]
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Traffic signal at Locust Street and Clinch Avenue
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Traffic signal communication splicing box along Great Seneca Highway [01]
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Traffic signal communication splicing box along Great Seneca Highway [02]