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- October 27
- 1904 – The first underground line of the New York City Subway opens; the system is now the largest in the United States, and one of the largest in the world.
- 1907 – Union Station in Washington, D.C., (pictured) opens.
- 1945 – George Hughes, Chief Mechanical Engineer for the Lancashire and Yorkshire Railway 1904-1922, the London and North Western Railway 1922-1923 and the London, Midland and Scottish Railway 1925-1931, dies (b. 1865).
- 2004 – The North American rail labor union Brotherhood of Maintenance of Way Employes votes to merge with the Teamsters.