In 2024, the road network in mainland France will cover nearly 1.1 million kilometres, including more than 12,000 km of motorways. Traffic on a network or the accident rate on that network are not correlated with its length. Motorways are the safest roads, with a central reservation separating traffic flows and grade-separated junctions. They account for only 1% of the road network but carry 28% of road traffic and record only 7% of fatalities.
More specifically, there were 239 fatalities on motorways in 2024. The mortality rate on motorways is lower than on the network as a whole, with 1.5 fatalities per billion kilometres travelled in 2024, compared with an average of 5.3. This difference can be explained in part by the characteristics of this infrastructure, which prevents head-on collisions and accidents at junctions as far as possible. It can also be explained by the low number of vulnerable users, as a significant proportion of these modes of transport are not allowed on motorways.
In 2024, 29% of users killed on motorways in mainland France died in accidents involving a single vehicle without pedestrians.