Tehran Metro Line 4
metro line in Tehran, Iran
Line 4 is one of several lines of the Tehran Metro. The line is 26 km (16 mi) with 20 main stations, three stations along a domestic airport-serving branch line and a terminal (depôt).
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 23 July 2012 two more stations were inaugurated, connecting line 4 with line 5.
Twenty 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 11.2 km (7.0 mi).
Begin with the source’s own compact description: “Tehran Metro Line 4” is metro line in Tehran, Iran. The dossier treats that line as a proposition to test through Tehran, Metro and Line, not as a finished interpretation.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 15, 2026. The linked authority identifier is Q20110121. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2008, 2009 and 2012.
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This entry incorporates text from “Tehran Metro Line 4” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.