Added risk by rainy weather on the roads of Normandie-Centre region in France : Some elements for the French IRCAD-SARI traffic monitoring and information system for drivers and operators
Résumé
The project IRCAD-SARI, funded by the French Ministry of Transport, will experiment on some rural roads in France a warning sign system during adverse weather conditions. The safety stake is assessed by computing the added-risk in case of adverse weather conditions, and especially in case of rain on bends. The method for estimating rain exposure takes into account several types of meteorological information, and the additional weather information of the accident database. The traffic database, when available, enables to drop the approximate assumption that traffic is not correlated with rain. A method for computing the added risk due to rain is proposed and some related results are given in this paper.