Line 8 (RT-Metro)

Line 8 is a Gobras City Metro line in Gobras City, Gobrassanya, operated by the RT-Metro Authority. Coloured turquoise on official maps, it serves over 30 stations. It is one of the busiest line on the RT-Metro network, serving over 200 million passengers in 2017. The line runs from Yago in the northeast to Isyee to the southwest, via Jjnov and Capitol South in the downtown. It uses the Danhduong G800 and G801 trains which runs in a six to eight car formation.

Certain sections of the line were already built by private companies, with the Wynot-Jjnov stretch built by the Wynot Railway Company in 1928, and the Jaspee-Isyee stretch operated by the South Isyee Electric Company in 1939. The Wynot line was briefly diverted to Pohalashee Grand via Front in 1935 and was planned to extend the line to Marapura Avenue before the company's dissolution in 1945 which cancelled such plans. The line was taken over by the Gobras City Rapid Transit Authority, later the RT-Metro Authority, and a new branch to Lhatgaver North extending from Jjnov was built and completed in 1942.

Subsequently, a Marapura line extension was being considered, extending from Lhatgaver North and ceasing the Pohalashee Grand services (as the Zoo Line already served such a service). The first stage, from Assembly to Khaikeagha, was completed in 1950, followed by a further extension to Marcais in 1955. It later connected with the Isyee South Rail line, which was acquired by RT-Metro in 1958, by extending the Marapura line to Jaspee in 1959. The Marapura line was given the number Line 8 during the RT-Metro reorganization of lines in the 1960s.

The Grand Safari station closed in 1975 when the Grand Safari entrance was being relocated, and a new infill Yalarah Circle was built as a replacement which also terminates with Line U. The line went through a facelift in the 1990s, with the addition of barrier-free facilities (such as lifts and tactile tiles) in the stations. Sleepers and the third rail was replaced, and new rolling stocks (the G800 and G801) were purchased to increase passenger capacity on the line, replacing the old Avawoon 88 and 89 stocks. Recently, as of 2014, the line has successfully switched from semi-automatic to fully automated operations, despite many technical difficulties in the trials.