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Federal Signal Model 5 siren on the Hanover Street Bridge
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Traffic signals on Nicholson Lane [01]
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Traffic signals on Nicholson Lane [02]
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Traffic signals on Nicholson Lane [03]
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Traffic signals on Nicholson Lane [04]
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Traffic signals on Nicholson Lane [05]
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Traffic signals on Nicholson Lane [06]
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Traffic signals in Derwood, Maryland [01]
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Traffic signals in Derwood, Maryland [02]
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Traffic signals in Derwood, Maryland [03]
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Federal Signal SD-10 at Cumberland Valley Hose Company
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Traffic signal at 4th and West Street
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Overheight warning bell on US 321
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Buc-ee's in Crossville, Tennessee [39]
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Traffic signal at Locust Street and Clinch Avenue
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Traffic signals at Clinch Avenue and Henley Street
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620 South Gay Street
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Traffic signals on State Street
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Siren selfie
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Fire alarm at Best Buy in Gaithersburg, Maryland [01]
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Fire alarm at Best Buy in Gaithersburg, Maryland [02]
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Fire alarm strobe at Home Depot in Harrisonburg
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Fire alarm at Trenton Park & Ride [02]
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Fire alarm at Trenton Park & Ride [01]
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Traffic light at 7th Avenue and West 26th Street [01]
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Traffic light at 7th Avenue and West 26th Street [02]
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"HATE BOOK" sticker on pedestrian signal call button
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"Live, love, laugh" on traffic signal control box
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Traffic light at 7th Avenue and West 24th Street
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"Messiah is here!"
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Fire alarm strobe at Fulton Street station
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Traffic signal at Fulton and Jay Streets [01]
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Traffic signal at Boerum Place and Livingston Street [02]
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Traffic signal at Willoughby and Bridge Streets
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Traffic signal at Willoughby and Jay Streets
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Traffic signal at Fulton and Jay Streets [02]
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Signage on a mast arm at Willoughby and Jay Streets
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Traffic signal at Boerum Place and Livingston Street [01]
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Traffic signal at Fulton and Jay Streets [03]
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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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Traffic signal at Boerum Place and Livingston Street [03]
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Traffic signal at Lexington Avenue and East 41st Street
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Signal FT8 at 15th Street station
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Traffic signal at Boulevard de la Cité and Boulevard de la Gappe [06]
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Traffic signal at Boulevard de la Cité and Boulevard de la Gappe [05]
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Traffic signal at Boulevard de la Cité and Boulevard de la Gappe [01]
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Traffic signal at Boulevard de la Cité and Boulevard de la Gappe [03]
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Traffic signal at Boulevard de la Cité and Boulevard de la Gappe [02]
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Graffiti on traffic signal control box in Gatineau
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Traffic signal at Boulevard Maloney and Boulevard de la Cité [01]
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Traffic signal at Boulevard de la Cité and Boulevard de la Gappe [04]
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Traffic signal at Boulevard de la Cité and Boulevard de la Gappe [07]
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Traffic signal at Boulevard Maloney and Boulevard de la Cité [02]
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Traffic signal at Boulevard Maloney and Boulevard de la Cité [03]
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Traffic signal at Boulevard Maloney and Boulevard de la Cité [04]
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Traffic signal at Boulevard Maloney and Boulevard de la Cité [05]
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Traffic signal at Boulevard Maloney and Boulevard de la Cité [06]
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Intersection of Boulevard Maloney and Boulevard de la Cité [01]
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Intersection of Boulevard Maloney and Boulevard de la Cité [02]
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Intersection of Boulevard Maloney and Boulevard de la Cité [03]
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Traffic light at Rideau and Nelson Streets [01]
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Traffic light at Rideau and Nelson Streets [02]
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One way sign at Bank and Sparks Streets
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Traffic signal at intersection of Metcalfe Street and Laurier Avenue West [02]
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Pedestrian signal call sensor at Metcalfe and Nepean Streets [01]
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Sign for Wellington Street
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Traffic light at Wellington and O'Connor Streets [02]
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Traffic light at Wellington and O'Connor Streets [01]
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Pedestrian signal call sensor at Metcalfe and Nepean Streets [02]
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Montreal Road eastbound from North River Road
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Traffic signal at Elgin and Somerset Streets [04]
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Traffic signal at Elgin and Somerset Streets [02]
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Traffic signal at Elgin and Somerset Streets [05]
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Traffic signal at intersection of Metcalfe Street and Laurier Avenue West [01]
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Traffic signal at Elgin and Somerset Streets [01]
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Traffic signal at Elgin and Somerset Streets [03]
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Bicycle signal at intersection of Metcalfe Street and Laurier Avenue West
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Traffic light at Montreal Road and North River Road
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Fire alarm strobe in the basement of the Cathedral of Learning [01]