The initial plans of the Tehran Metro, which was to be Iran's first metro system, were laid out before the Iranian revolution in the 1970s. In 1970 the Plan and Budget Organization and the Municipality of Tehran announced an international tender for construction of a metro in Tehran. The French company Sofretu, affiliated with the state-owned Paris transportation authority RATP, won the tender and in the same year began to conduct preliminary studies on the project. In 1974, a final report with a so-called 'street-metro' proposal was tendered. The street-metro system recommended a road network with a loop express way in the central area and 2 highways for new urban areas and a 8-line metro network which were complemented by bus network and taxi services. Geological surveys commenced in 1976. In 1978 construction on the line was started in northern Tehran by the French company, however this development was shortlived with the advent of the Iranian Revolution and Iran–Iraq War in 1979 and 1980 respectively. Sofretu ceased operations in Iran in December 1980. On March 3, 1982, the Iranian Cabinet ministers formally announced the stop of Tehran Metro operations by the French company.
In 1985, the "Tehran Metro Execution Plan" was re-approved by Majles (Iran Parliament) on the basis of legal project of "Amendment of Law of Establishment of Tehran Urban and suburban Railway Company" which had been founded on Farvardin 1364 (April 1985). This was a literal continuation of the exact same project that had been laid out before the revolution. Work proceeded slowly due to the continuing Iran–Iraq War and often ground to a halt.
Tehran MetroBy the summer of 1985, urban pressure from the rapidly urbanising population, and lack of developed public transport system prompted the work to be resumed in earnest. 'Line 1' (From Blvd. Shahid Ayatollah Haghani to City of Rey) and its extension to Behesht-e-Zahra Cemetery was made a priority. 'Line 2' (From Dardasht in Tehran Pars district to Sadeghiyeh Second Square) and an extending towards the City of Karaj and Mehrshahr district was also made a secondary priority. Studies were also made to establish the previously designed Line 3 and 4. It was decided that an organisation by the name of the Metro Company should be established in order to handle the future development of the system.
Following this phase, the Metro Company was managed by Asghar Ebrahimi Asl for eleven years. During this time, hundreds of millions of dollars were spent on the system and the Metro Company was given government concessions for the exploitation of iron ore mines in Bandar Abbas (Hormuzgan Province), exploitation and sale of Moghan Diotomite mine in Azarbaijan Province, export of refinery residues from Isfahan oil refinery as well as tar from Isfahan steel mill [1]. The year after Asghar Ebrahimi Asl left the management of the Metro Company and Mohsen Hashemi, the current Chairman of the company, succeeded him, the first line of the Tehran Metro was launched between Tehran and Karaj.
On 7 March 1999, an overland Tehran-Karaj express electric train started a limited service of 31.4 km between Azadi Square (Tehran) and Malard (Karaj) calling at one intermediate station at Vardavard. The line was constructed by the Chinese company Norinco.
Line 5 of the Tehran metro began operating in the year 1999 and was Iran's first metro system.
From 2000 onwards, commercial operation began on Lines 1 and 2. The wagons on these lines are provided by CNTIC. The railway tracks and points on these lines are provided by the Austrian company Voestalpine.
The Metro uses equipment manufactured by a wide range of international companies: Double-deck passenger cars for the Tehran-Karaj commuter line are supplied by CNTIC and assembled by the Wagon Pars factory in Arak.
To date, approximately one billion US dollars have been spent on the Metro project. Once fully operational, the Tehran Metro is expected to transport about 2 million passengers through its first and second lines.

en.wikipedia.org/wiki/Tehran_Metro

Single journey tickets start at around IR1000 (expect this to change) and can also be bought for 10 journeys or as 1, 3 and 7 day travel cards. There are also monthly, 3-monthly, 6-monthly and annual tickets.
Hours of operation on the Tehran metro are from 6am to 10pm or 10.30pm. Station and train announcements are in Farsi only. Tehran's buses connect with metro stations.
Carriages can be extremely packed at peak times; the first and last cars are reserved for women. If you are female, use them.


www.tehranmetro.com/index.asp

www.schindler.com/