Study on the annoyance assessment model in the area exposed by the combined noise due to road traffic and railway

This paper studies to establish the quantitative assessment model of combined noise in areas due to transportation source using the three-dimensional noise map and field survey. The three-dimensional noise map is used to calculate the noise level in each building and the field survey is performed to investigate annoyance response and non-noise factors. The three-dimensional city spatial model of noise map is obtained from city spatial information, which consists of digital elevation model and three-dimensional building ones, for finding the distribution of transportation noise in urban areas. The field survey is conducted to investigate the annoyance response of 693 households affected by of combined noise. Annoyance prediction models in three dominant areas of noise are made by the relationship between annoyance response rate and transportation noise level for the quantitative assessment to environmental noise standard of the combined noise. In this study, annoyance response rate to transportation noise level is compared to those by previous researches in European countries.