total: 6,130 km
broad gauge: 94 km 1.676-m gauge (connected to Pakistan Railways)
standard gauge: 6,036 km 1.435-m gauge (187 km electrified)
note: broad-gauge track is employed at the borders with Azerbaijan and Turkmenistan which have 1.524-m broad-gauge rail systems; 41 km of the standard-gauge, electrified track is in suburban service at Tehran (2001)
City with underground railway system: Tehran
In 2002, the Iran Parliament approved the funding of a new line from Mashhad towards Herat across the border in Afghanistan.
Highways:
total: 140,200 km
paved: 49,440 km (including 470 km of expressways)
unpaved: 90,760 km (1998 est.)
Waterways: 904 km
note: the Shatt al Arab is usually navigable by maritime traffic for about 130 km; channel has been dredged to 3 m and is in use
Pipelines: crude oil 5,900 km; petroleum products 3,900 km; natural gas 4,550 km
Ports and harbors: Abadan (largely destroyed in fighting during 1980-88 war), Ahvaz, Bandar 'Abbas, Bandar-e Anzali, Bushehr, Bandar-e Emam Khomeyni, Bandar-e Lengeh, Bandar-e Mahshahr, Bandar-e Torkaman, Chabahar (Bandar Beheshti), Jazireh-ye Khark, Jazireh-ye Lavan, Jazireh-ye Sirri, Khorramshahr (limited operation since November 1992), Now Shahr
Merchant marine:
total:
138 ships (1,000 GRT or over) totaling 3,517,751 GRT/6,208,230 DWT
ships by type:
bulk 45, cargo 36, chemical tanker 4, combination bulk 1, container 7, liquified gas 1, multi-functional large load carrier 6, petroleum tanker 26, refrigerated cargo 2, roll-on/roll-off 9, short-sea passenger 1 (1999 est.)
Airports: 288 (1999 est.)
Airports - with paved runways:
total:
112
over 3,047 m:
38
2,438 to 3,047 m:
21
1,524 to 2,437 m:
23
914 to 1,523 m:
24
under 914 m:
6 (1999 est.)
Airports - with unpaved runways:
total:
176
over 3,047 m:
2
2,438 to 3,047 m:
5
1,524 to 2,437 m:
14
914 to 1,523 m:
123
under 914 m:
32 (1999 est.)
National airline:
Heliports: 11 (1999 est.)