!!!Republic of the Congo: Transportation ||National air transport system|''number of registered air carriers'': 3 \\ ''inventory of registered aircraft operated by air carriers'': 12 \\ ''annual passenger traffic on registered air carriers'': 657,926 \\ ''annual freight traffic on registered air carriers'': 2,987,493 mt-km (2015) \\ ||Civil aircraft registration country code prefix|TN (2016) ||Airports|27 (2013) ||Airports - with paved runways|''total'': 8 \\ ''over 3,047 m'': 2 \\ ''2,438 to 3,047 m'': 1 \\ ''1,524 to 2,437 m'': 5 (2013) \\ ||Airports - with unpaved runways|''total'': 19 \\ ''1,524 to 2,437 m'': 8 \\ ''914 to 1,523 m'': 9 \\ ''under 914 m'': 2 (2013) \\ ||Pipelines|gas 232 km; liquid petroleum gas 4 km; oil 982 km (2013) ||Railways|''total'': 510 km \\ ''narrow gauge'': 510 km 1.067-m gauge (2014) \\ ||Roadways|''total'': 17,000 km \\ ''paved'': 1,212 km \\ ''unpaved'': 15,788 km (2006) \\ ||Waterways|1,120 km (commercially navigable on Congo and Oubanqui Rivers above Brazzaville; there are many ferries across the river to Kinshasa; the Congo south of Brazzaville-Kinshasa to the coast is not navigable because of rapids, necessitating a rail connection to Pointe Noire; other rivers are used for local traffic only) (2011) ||Merchant marine|''registered in other countries'': 1 (Democratic Republic of the Congo 1) (2010) \\ ||Ports and terminals|''major seaport(s)'': Pointe-Noire \\ ''river port(s)'': Brazzaville (Congo); Impfondo (Oubangi); Ouesso (Sangha); Oyo (Alima) \\ ''oil terminal(s)'': Djeno \\