article_snippet.sent: Originally opened in 1865 as the final section of the Eastern Railway Branch line, the railway was run by London Underground from 1949.
article_snippet.sent: the railway ran until 1994 when the railway was closed and the railway passenger service was withdrawn.
article_snippet.sent: the railway lay in disuse until restoration to turn the railway into a historic site began in 1994.
article_snippet.sent: the railway is predominantly staffed by volunteers as indeed are most heritage lines.