Officials say Nigeria has the world's third-highest number of road traffic deaths, behind China and India.
The World Health Organisation says traffic fatalities kill nearly 50,000 people a year in Africa's most populous nation.
Only 15 percent of Nigeria's roads are paved, and speeding buses crash head-on into each other on a seemingly daily basis. Long-haul truckers also lose control of gasoline tankers that can explode into infernos.
Critics blame the Nigerian government for not doing more to maintain the oil-rich country's roads, and accuse officials of accepting bribes to look away from dangerous vehicles and drivers.
Others have been killed when drivers were unable to stop for sudden police checkpoints.
