Events January events January 19 - The Little Salkeld rail accident in England kills 7 people. February events February 3 – Twin Peaks Tunnel in San Francisco, California, the longest () streetcar tunnel in the world, opens. February 11 – The roof of the Portland–Lewiston Interurban carbarn in Gray, Maine, collapses under heavy snow. March events March 19 – The United States Congress adopts Standard or "Railroad" time, in use since 1884, as the national standard. March 21 – The Railroad Control Act becomes law in the United States, guaranteeing the return to private ownership and administration of America's railroads from the USRA at the end of World War I. March 26 – The Council of the People's Commissars in Russia issues a decree "for the centralization of control, the protection of railroads and increase in their capacity." June events June 22 – Hammond Circus Train Wreck, Hammond, Indiana, United States: The engineer of a troop train operating on the Michigan Central Railroad falls asleep while the train is in motion; he misses several signals and runs his train into the rear of a stopped circus train. Several of the passenger cars are completely destroyed in the collision and catch fire; 86 people die and 127 others are injured in the accident. July events July 9 – Great train wreck of 1918, Nashville, Tennessee, United States: two Nashville, Chattanooga and St. Louis Railway trains collide head-on. 101 killed, 171 injured; deadliest train accident in United States history. July 10 – The Denver and Interurban Railroad, in Colorado ceases all operations; passenger service is replaced with buses. July 15 – Atchison, Topeka and Santa Fe Railway opens a new station in San Bernardino, California, to replace the former California Southern Railroad station that was destroyed by fire in 1916. August events August 10 – Following its second bankruptcy, the Colorado Midland Railway ceases operations, the largest single United States railroad abandonment to this date. August 16 – Grand Trunk Railway's freight sheds in Ottawa are destroyed by fire; the loss is estimated at $85,000. September events September 6 – The Canadian Northern Railway is nationalized, later to become part of Canadian National Railway. October events October 1 – The Getå Railroad Disaster in Getå, Östergötland, Sweden, kills 41 passengers and the fireman and injures 41 people. It is to date the worst railroad accident in Swedish history. October 21 – Canadian