Nigeria has the largest road network in West Africa and the second largest south of the Sahara, with roughly 108,000 km of surfaced roads in 1990. However they are poorly maintained and are often cited as a cause for the country’s high rate of traffic fatalities. In 2004 Nigeria’s Federal Roads Maintenance Agency (FERMA) began to patch the 32,000-kilometre federal roads network, and in 2005 FERMA initiated a more substantial rehabilitation. The rainy season and poor equipment pose challenges to road maintenance.
Figures from CIA World Factbook (1999):
Total: 194,394 km
paved: 60,068 km (including 1,194 km of expressways)
unpaved: 134,326 km (1998 est.)
note: Some paved roads have lost their asphalt surface and are in very poor condition or have reverted to being gravel roads. Some of the road system is barely usable, especially in high rainfall areas of the south.
Read more about this topic: Transport In Nigeria