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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]
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Fire alarm strobe in the basement of the Cathedral of Learning [02]
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Fire alarm strobe in the basement of the Cathedral of Learning [03]
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Fire alarm speaker/strobe at Cathedral of Learning [01]
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Fire alarm speaker/strobe at Cathedral of Learning [02]
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Fire alarm horn at Webster Towers
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Traffic signal at Fifth and Tennyson Avenues [01]
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Traffic signal at Fifth and Tennyson Avenues [02]
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Pedestrian call button at West Lawrence Avenue and North Oakley Avenue [01]
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Traffic signal at West Lawrence Avenue and North Oakley Avenue [01]
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Traffic signal at West Lawrence Avenue and North Oakley Avenue [02]
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Traffic signal at West Lawrence Avenue and North Oakley Avenue [03]
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Pedestrian call button at West Lawrence Avenue and North Oakley Avenue [02]
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Starbucks on North Lincoln Avenue [01]
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Starbucks on North Lincoln Avenue [03]
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Starbucks on North Lincoln Avenue [02]
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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]
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CTA signal A59 at Jackson station [02]
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Fire alarm horn/strobe at the Hampton Inn in Independence, Ohio
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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 horn/strobe at Barnes & Noble in Charlottesville, Virginia
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Exterior alarm horn at Shiloh Public School [01]
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Exterior alarm horn at Shiloh Public School [02]
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Exterior alarm horn at Shiloh Public School [03]
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Sirens at Easton Volunteer Fire Department [01]
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Sirens at Easton Volunteer Fire Department [02]
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Sirens at Easton Volunteer Fire Department [03]
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Fire alarm at Shaw-Howard University station [01]
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Fire alarm at Shaw-Howard University station [02]
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Fire alarm horn at 5000 Sunnyside Avenue [01]
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Fire alarm horn at 5000 Sunnyside Avenue [02]
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Fire alarm horn at 5000 Sunnyside Avenue [03]
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Fire alarm horn at 5000 Sunnyside Avenue [04]
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Fire alarm horn/strobe at 5000 Sunnyside Avenue [01]
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Fire alarm horn/strobe at 5000 Sunnyside Avenue [02]
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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 [01]
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Railroad tracks between River Road and US 22/322 [02]
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Railroad crossing at Maiden Lane [01]
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Railroad crossing at Maiden Lane [02]
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Railroad crossing at Maiden Lane [03]