Tehran Metro Line 2

Tehran Metro Line 2, which opened between Sadeghieh and Imam Khomeini in February 2000, is 20.4 kilometers (12.7 mi) long, with 19 km (12 mi) as a subway and 1.4 kilometers (0.87 mi) elevated. At this time, there were 19 stations along the line, of which Imam Khomeini Station was shared by Line 1. Line 2 is coloured blue on system maps and runs mostly east–west through the city.

The line was extended from Imam-Khomeini to Baharestan Metro Station in 2004, and to Shahid Madani, Sarsabz and Elm-o-Sanat University in March 2006 with the intermediate stations, Darvazeh Shemiran and Sabalan, opening in July 2006. It was extended further from Elm-o-Sanat University to Tehran Pars in February 2009, and to Farhangsara in June 2010. The extension phase to new east terminal is under construction.

This line, plus Line 4 are the only lines to intersect with every single one of the other 4 operational lines. This line also serves 3 universities across the city: Sharif University of Technology, Imam Ali University for Army Officers, and Iran University of Science and Technology.