Circle line (London Underground) with the other London Underground sub-surface lines: the Hammersmith & City line from Hammersmith to just before Aldgate; the Metropolitan line from Baker Street to Aldgate; and the District line from Tower Hill station to Edgware Road station. The line is electrified with a four-rail DC system: a central conductor rail is energised at and a rail outside the running rail at , giving a potential difference of . The running rails are not electrified. Much of the double track railway from the Hammersmith terminus to Westbourne Park station is on a high brick viaduct. East of Westbourne Park the
New Hamburg station the few in the Metro-North system to have closed and reopened; the original New Hamburg station was closed by the Penn Central Railroad in 1973 and reopened on October 17, 1981 afer the MTA took over the line. Another notable fact about the station is that the distance between it and Poughkeepsie — — is the longest such distance between stations on the Hudson Line (on any Metro-North main line, in fact) and the third-longest system-wide. This station has two high-level side platforms each six cars long. New Hamburg station The New Hamburg station is a commuter rail stop on