Events April April 18 – Serious fire at Kentish Town West railway station in London; it remains closed until 5 October 1981. April 30 – On the eve of Amtrak's assumption of American passenger train operations, Union Pacific Railroad and Chicago and North Western Railway end the City of Los Angeles and City of Denver trains, and the United States Post Office Department cancels all but one of the eight remaining Railway Mail Service routes; the final route served Washington, D.C., to New York City. May May 1 – Amtrak begins operations of most intercity passenger train service in the United States. May 4 – The Bucharest Transport Enterprise (Întreprinderea de Transport București) puts in operation the first of the V3A trams, which later became the basis of the Bucharest Articulated Tramcar series. June June 5 – Amtrak begins operating a section of the Empire Builder over the ex-Northern Pacific Railway mainline between Minneapolis and Spokane, Washington, restoring service to that route. This train will later be known as the North Coast Hiawatha. June 6 – London Transport commemorates the end of operating steam locomotives with a special run from Moorgate to Neasden depot of a train comprising No. L94 (ex-GWR 5700 Class No. 7752) and a selection of maintenance rolling stock. July July 23 – Opening of the final section of London Underground's Victoria line, from Victoria to Brixton, by Princess Alexandra. July 24 – The last regularly steam-hauled passenger train in New South Wales. July 30 – Opening of Pfaffenberg-Zwenberg Bridge on Tauern Railway Line in Austria, the world's longest concrete arch, with a span of . July 31 – The Monon Railroad is merged into the Louisville and Nashville Railroad. September September 10 – British Columbia Premier W. A. C. Bennett leads the ceremony to open the Pacific Great Eastern Railway's Fort Nelson Subdivision between Fort St. John and Fort Nelson, British Columbia. September 26 – Deutsche Bundesbahn introduces Inter-City express train network in Germany. October October 2 – Preserved ex-Great Western Railway steam locomotive No. 6000 King George V inaugurates a series of special trains on British Rail, the first steam allowed on the main line for several years. October 26 – Last train worked by steam on New Zealand Railways, the South Island Limited, hauled by JA class. November November – Construction begins on the Tōhoku Shinkansen line in Japan. December December 6 – The