Open AccessRoad Traffic Noise Exposure in Gothenburg 1975–2010
Author(s) -
Mikael Ögren,
Lars Barregård
Publication year - 2016
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0155328
Subject(s) - noise (video) , geocoding , traffic noise , population , statistics , road traffic , noise exposure , environmental science , noise pollution , geography , demography , mathematics , transport engineering , medicine , environmental health , computer science , noise reduction , cartography , engineering , audiology , hearing loss , artificial intelligence , sociology , image (mathematics)
Traffic noise exposure within a city varies over time and space. In this study, we developed a modified noise calculation method and used this method together with population and traffic data to estimate the time trend of noise exposure for the population in Gothenburg, Sweden, from 1975 to 2010. The noise calculation method was based on the standard Nordic method for road traffic noise with modifications using area-level statistics for population and building structures instead of precise geocoding of each inhabitant. Noise emission per vehicle was assumed to be constant over the period. The results show an increase in noise exposure over time. The number of inhabitants exposed at an equivalent level above 55 dB increased from 93000 to 146000 inhabitants between 1975 and 2010, and the percentage of the population exposed at this level increased from 22% to 29% over the same period. Traffic increase (1.4% per year) and population increase/concentration (0.50% per year) were approximately equally important factors behind this increase in exposure.