Prediction of the attenuation of road traffic noise with distance |
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| Institution: | 1. University of Cadiz, Department of Applied Physics, CASEM, Campus Universitario de Puerto Real, 11510 Puerto Real, Cadiz, Spain;2. Agency for Agricultural and Fisheries Management of Andalusia (AGAPA). C/ Bergantín 39, 41012 Seville, Spain;1. Shandong Provincial Key Laboratory of Computer Networks, Shandong Computer Science Center (National Supercomputer Center in Jinan), Qilu University of Technology (Shandong Academy of Sciences), Jinan, China;2. College of Computer Science and Engineering, Shandong University of Science and Technology, Qingdao, China;1. Technical Science Vocational School, Suleyman Demirel University, Isparta 32260, Turkey;2. Department of Environmental Engineering, Suleyman Demirel University, Isparta 32260, Turkey;3. Department of Geomatics Engineering, Gebze Technical University, Gebze, Kocaeli 41400, Turkey;1. Department of Hygiene and Ecomedicine, Faculty of Public Health, Medical University of Plovdiv, 15A Vassil Aprilov Blvd., 4002 Plovdiv, Bulgaria;2. Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Munich, Germany;3. Institute of Epidemiology, Helmholtz Zentrum München – German Research Center for Environmental Health, Neuherberg, Germany;4. Medical College, Medical University of Plovdiv, Plovdiv, Bulgaria;5. Department of Management, Faculty of Economics and Management, University of Agribusiness and Rural Development, Plovdiv, Bulgaria;6. Department of Psychiatry and Medical Psychology, Faculty of Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria;7. Department of Health Management and Healthcare Economics, Faculty of Public Health, Medical University of Plovdiv, Plovdiv, Bulgaria |
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| Abstract: | A method is described of calculating the sound pressure level received from single, representative light and heavy vehicles after propagation over terrain composed of various combinations of hard ground and grass-land. These results are then used to derive correction contours for the attenuation with distance of the Leq level received from streams of each class of vehicle. The results apply to conditions where the boundary between the soft and hard areas is parallel to the traffic stream and the soft ground is on the receiver side. Various positions of the boundary are considered. A simple prediction method for Leq is developed, incorporating the distance corrections. Similar calculations are carried out for the attenuation with distance of the L10 noise index for a representative stream of vehicles. Based on these results simple prediction equations for the excess attenuation are proposed in terms of the receiver position and the proportion of soft ground below the propagation path. |
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