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Flying junction
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== External links == {{Commonscat|Flying junctions}} * [http://www.wikimapia.org/#lat=50.573126&lon=3.1457376&z=15&l=0&m=a WikiMapia link – aerial photo of Fretin triangle (mentioned above)] * [http://local.live.com/default.aspx?v=2&cp=39.968157~-75.195093&style=o&lvl=1&scene=1915422 Photo link – flying junction on Pennsylvania Railroad north of 30th Street Station, Philadelphia, Pennsylvania, United States] * [http://local.live.com/default.aspx?v=2&cp=39.962832~-75.2613&style=o&lvl=1&scene=1891525 Photo link – simpler flying junction at terminus of Market–Frankford transit line, 69th Street Station, Philadelphia, Pennsylvania, United States] {{Railway track layouts}} [[Category:Rail junction types]] [[Category:Railway bridges]]
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