Tehran Metro Line 4
Line 4 is one of several lines of the Tehran Metro. The line is with 20 main stations, 3 stations along a domestic airport-serving branch line and a terminal.
Its section 1, from Ferdowsi Square to Darvazeh Shemiran, opened in April 2008. Section 2 from Darvazeh shemiran to Shohada Square opened in February 2009. Three months later Section 3 from Ferdowsi Square to Engelab Square opened. On July 23, 2012 two more stations were inaugurated, connecting line 4 with line 5.
Currently 20 stations serve Line 4's trunk line, plus two more on the branch line serving the country's most-used Domestic Airport, Mehrabad Airport.
Route
The line begins with an interchange station with Line 5 at Eram-e Sabz Station, north of the Tehran-Karaj Freeway near Eram-e Sabz Park in western Tehran.It heads southward through Ekbatan town then turns east, running along Karaj Makhsus Road, Azadi Square, Azadi Street, and Enghelab Street. This main axis continues for. The line turns southeast briefly along Rowshandelan Street and until Shohada Square. Then it resumes an eastward course along Piruzi Street. Then it veers north-eastwards and runs along the Doran Expressway until reaching its eastern terminus, Shahid Kolahdooz Station.