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
Manila Light Rail Transit System Line 2 station, the only underground station on the line. The western terminus of the line is the Recto station at the intersection Recto Avenue and Rizal Avenue, while the eastern terminus of the line is the Santolan station along Marcos Highway in Barangay Calumpang, Marikina City. The rail line serves the cities that Radial Road 6 (Marcos Highway, Aurora Boulevard, Ramon Magsaysay Boulevard, Legarda Street and Recto Avenue) passes through: Manila, San Juan, Quezon City, Marikina City and Pasig City (depot). Three stations currently serve as interchanges between the lines operated by the LRMC, MRTC, and PNR. Pureza station is near