The research project ROADSENSE aims to define, conceive, deploy and validate experimentally a driving assistance for motored road users. This assistance is delivered by audio tactile lines installed on the road, producing an alert by sound and vibration into the vehicle while passing on it. This alert is intended to correct the lane departures of distracted, disoriented or tired drivers having difficulties to perceive the road or to position their vehicle, or more generally having a hazardous or erratic trajectory compared to their circulating lane in rural roads. In order to achieve this target, the research project ROADSENSE aims: • To propose a functional framework of road safety based on a review of the art and on the identification of the stakes and the rural road crashes mechanisms, • To characterize and to identify the sound and vibrations of existing alert lines • To conceive and validate relevant sound signals (sound) from psychoacoustics surveys on a panel of users, to recreate the on a numerical synthesizer • To implement the sound and vibration signs on a driving simulator, to set up reference scenarios • To experiment the efficiency and the acceptability of alert lines by audio-tactile delimitation of the driving lane from surveys on panels of users (i) on a driving simulator, (ii) on a test track and (iii) on open roads • To define and develop tools and methods enabling to evaluate the efficiency of the road devices from 3 roads test sites locally equipped in order to prepare an applicative research project (FUI). The efforts on the encoding of sounds and vibration to conceive audio tactile alert lines will offer a great opportunity to validate rigorously new low cost driving assist systems, that can be deployed on a short term and that should answer to the needs of the whole park of existing vehicles on the roads infrastructures.