TRAFFIC NOISE

BRUITS ROUTIERS

THE AIM OF THE RESEARCH IS TO COLLECT EXPERIMENTAL DATA AND TO INVESTIGATE OR IMPROVE METHODS OF MEASURING AND FORECASTING TRAFFIC NOISE. STUDIES CONDUCTED UP TO THE PRESENT TIME CONCERN: - DISTRIBUTION OF NOISE AROUND INTERSECTIONS; - TYRE/ROAD CONTACT NOISE FOR A NUMBER OF VEHICLES; - VARIATION OF THE SOUND LEVEL AS A FUNCTION OF SPEED; - NOISE DISTRIBUTION UNDER VIADUCT DECKS; - PROGRAMMING OF CALCULATIONS FOR THE FORECASTING OF ROAD NOISE; - COMPARISON BETWEEN FORECASTING CLACULATIONS OF ROAD NOISE AND IN-SITU MEASUREMENTS; - BIBLIOGRAPHIC STUDY FOR THE SETTING UP OF A TEST CODE. IN 1979 IT IS ENVISAGED: - TO PROPOSE AND DEVELOP A TEST CODE; - TO SUMMARIZE PREVIOUS WORK.