The construction of the Helwan-El Marg line was in two stages. The first stage was from Helwan to
Sayeda Zeinab and included a tunnel from Helwan to Ramses Square. First the line from Helwan to
Sayeda Zeinab, which is long had the following construction works: • The isolation of the existing railways and the construction of 9 car bridges and 21 people bridges. • The construction of 17 rail lane switcher. Second the line from Helwan to Ramses Square, which would be a subterranean and is long. It includes five subterranean stations after the
Sayeda Zeinab station: •
Saad Zaghloul station •
Sadat station •
Gamal Abdel Nasser station •
Ahmed Orabi station •
Mubarak (now: Al-Shohadaa) station under Ramses Square The Construction of this line consumed the following resources: • of concrete works. It had a total length of . The second stage of the Helwan El Marg line included the construction of a line from Ramses Square to El marg, which would be long. The second stage included also: • The conversion of the Marg line to an electric line. • The acquisition of 48 new units, which would make 100 units available for operation. • The improvement of a workstation to provide maintenance works for 204 Units. • The construction of a 220
kilo-Volt power generator, to provide electricity for the future lines. ==Connections==