Tehran Metro is fast and averages trains on all lines each 15 or 20 minutes.

Tehran Metro is going to construct express lines.

Tehran Metro currently has a commuter line between Tehran and Karaj.

The Tehran Metro carries more than 2 million passengers a day.

In 2010, 459 million trips were made on Tehran Metro.

A combination of modern art and traditional Persian art is prominent in every station of the Tehran Metro.

Additionally, relative to cost, critics point out that the passenger capacity of the monorail is 10 times less than the Tehran Metro.

Along with extension work on the Tehran Metro and Mashhad urban rail, five other metro projects are being built.

One of his sons has resigned as chief of the Tehran Metro while another lives abroad for fear of a political trial.

It is linked by the Tehran Metro to the rest of Tehran and has many industries and factories in use.