Railways:
total: 4,292 km
standard gauge: 4,047 km 1.435-m gauge (2,650 km electrified; 917
double track)
other: 245 km 0.760-m gauge (1995)
Highways:
total: 36,932 km
paved: 33,904 km (including 276 km of expressways)
unpaved: 3,028 km (1992 est.)
Waterways: 470 km (1987)
Pipelines: crude oil 193 km; petroleum products 525 km; natural gas 1,400 km (1992)
Ports: Burgas, Lom, Nesebur, Ruse, Varna, Vidin
Merchant marine:
total: 103 ships (1,000 GRT or over) totaling 1,084,090
GRT/1,596,735 DWT
ships by type: bulk 45, cargo 27, chemical tanker 4, container 2,
oil tanker 13, passenger-cargo 1, railcar carrier 2,
roll-on/roll-off cargo 6, short-sea passenger 2, refrigerated cargo 1
note: Bulgaria owns an additional 7 ships (1,000 GRT or over)
totaling 135,016 DWT operating under the registries of Liberia and
Malta (1995 est.)
Airports:
total: 355
with paved runways over 3 047 m: 1
with paved runways 2 438 to 3 047 m: 17
with paved runways 1 524 to 2 437 m: 10
with paved runways under 914 m: 88
with unpaved runways 2 438 to 3 047 m: 2
with unpaved runways 1 524 to 2 437 m: 1
with unpaved runways 914 to 1 523 m: 10
with unpaved runways under 914 m: 226 (1994 est.)
Communications ———————
Telephones: 2,773,293 (1993 est.)
Telephone system: almost two-thirds of the lines are residential;
67% of Sofia households have telephones (November 1988 est.)
domestic: extensive but antiquated transmission system of coaxial
cable and microwave radio relay; telephone service is available in
most villages
international: direct dialing to 36 countries; satellite earth
stations - 1 Intersputnik (Atlantic Ocean Region); Intelsat
available through a Greek earth station