  the staten island railway (sir) is the only rapid transit line in the new york city borough of staten island. service on the line is provided 24 hours a day, every day of the year. operated by the staten island rapid transit operating authority (sirtoa), a unit of the metropolitan transportation authority, it is considered a standard railroad line, but only freight service which runs along the western portion of the north shore branch is connected to the national railway system. sir operates with modified r44 new york city subway cars,nycsubway.org - r44 car information and is run by the new york city transit authority, an agency of the metropolitan transportation authority and operator of the new york city subway. however, there is no direct rail link between the sir and the subway system proper. sir riders do get a free transfer to new york subway lines, and the line is included on official new york city subway maps. commuters who use the railway typically use the staten island ferry to reach manhattan; the line is accessible from within the ferry terminal and most of its trains connect with the ferry. the staten island railway provides full-time local service between saint george and tottenville along the east side of the borough. ther
CSX_Transportation Companies_affiliated_with_the_Baltimore_and_Ohio_Railroad Defunct_New_York_railroads Metropolitan_Transportation_Authority_of_New_York New_York_City_Subway Railway_companies_disestablished_in_1944 Railway_companies_established_in_1873 Standard_gauge_railways_in_the_United_States Staten_Island_Railway Transportation_in_the_New_York_metropolitan_area