The metropolis of
Tehran enjoys a huge network of highways (280 km) and of
interchanges’ ramps & loops (180km).
In 2007 there were
130 kilometers of highways and 120 kilometers of ramps and loops
In 2001 a metro
system that had been in planning since the 1970s opened the first two
of seven envisaged lines. Work has been slow and coverage remains
very limited. Development of the Tehran metro system had been
interrupted by the Islamic Revolution and the Iran-Iraq War. Problems
arising from the late completion of the metro led to buses taking on
the role of the metro lines, serving mainly long distance routes.
Taxis filled the
void for local journeys. The taxis only drive on main avenues, and
only within the local area, so it may be necessary to take several
taxis to get to one's final destination. This has all led to extreme
congestion and air pollution within the city.
Tehran is served by
Mehrabad International Airport, the old airport which doubles as a
military base located in the western part of the city, and Imam
Khomeini International Airport, 50 kilometers (31 mi) south, which
handles flights from the Persian Gulf but which will eventually
handle all international flights.
Tehran also has a
central train station with connecting services round the clock to
various cities in the country. There are four bus terminals that also
provide connections at low fares. These are the South, East, West,
and Bei-haghi Park-Drive Terminals. While the center of the city
houses the government ministries and headquarters, the commercial
centers are more located toward Valiasr Street, Taleghani Ave, and
Beheshti Ave further north. Although administratively separate, Rey,
Shemiran, and Karaj are often considered part of the larger Tehran
Check this link for