Starting January 20, Metropolitan Transportation Authority New York City Transit will bring FASTRACK to the E, F, M and R lines in Manhattan and Queens. For four consecutive weeknights until early morning January 24, E service will be suspended between Roosevelt Ave. and World Trade Center. F service will be suspended between Roosevelt Ave. and 21 St.-Queensbridge. M service will end early between 71 Ave. and Essex St. each night. R service will end early between 71 Ave. and Whitehall St. each night. FASTRACK has been designed around the careful determination that there is adequate alternate means of transportation, including enhanced services along some bus lines during work periods. FASTRACK was introduced in January 2012, devoting four straight weeknights to perform maintenance work in tunnels, stations and on tracks, completely suspending service within a given line segment for a seven-hour period, allowing an army of maintenance workers to perform dozens of tasks. The next FASTRACK overnight closure will be on the 2, 3 and 4 Eastern Parkway Line, between Atlantic Ave.-Barclays Ctr. and Franklin Ave., beginning January 27 and ending early January 31.