Question 16406 — road safety

Summary

The evaluation of a national measure - the reduction of speeds on the bidirectional network without a central separator - over a still short implementation period requires relying on variables reported as exhaustively and homogeneously as possible at the national level. However, the information concerning the roads concerned (type of road, number of lanes, traffic regime, which are level 2 variables) is not exhaustive information on all accidents entered in the database. Aware of the importance of having a quality basis for monitoring accidents on their road network, a certain number of communities, metropolises or departmental councils, participate in improving the quality of files and are then able to establish precise diagnoses on their territory. However, these data are not complete in terms of national. This is why the committee of experts of the National Road Safety Council recommended using, for the roads concerned, the “outside urban area” indicator, an essential first-level variable in the injury accident analysis bulletins, labeled by the public statistics authority. This variable has the advantage of being of stable quality over the years, even though it has been identified that the accident rate on two-way roads outside built-up areas represents at least 90% of the accident rate on roads outside built-up areas (once the accident rate on motorways has been deducted).

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