Community responses to aircraft and road traffic noises in Vietnam: Effects of personal, residential and environmental factors

摘要

The data from aircraft and road traffic noise surveys conducted in Hanoi and Ho Chi Minn City were re-analyzed to investigate whether residential and environmental factors influence noise annoyance and activity disturbances. The sample sizes of aircraft, road traffic and combined noise surveys used for the analysis were 1667, 2908 and 1220 respectively. Both 5-point verbal and 11-point numerical scales were used to determine dose-response relationships. It was found that the annoyance extents corresponding to the top 2 categories on the verbal scale were equivalent to those of the top 4-5 categories on the numerical scale. The multiple logistic regression analysis was applied with personal factors such as age, gender, and so on as the independent variables and noise annoyance as the dependent variable. Respondents who had high self-reported noise sensitivity rated a high noise annoyance significantly across all noise sources. Furthermore, the results from analysis showed that the satisfaction with residential area, the comfort level in the rainy season and the quietness in the residential area were significantly affect annoyance caused by road traffic noise, while the satisfaction with the residential area only influenced aircraft noise annoyance. The quality of sleep was affected by the satisfaction with the residential area and the presence of greenery with the areas along the roads but was not affected in areas exposed by aircraft noise. In areas with combined noises, the satisfaction with the residential area affected the quality of sleep. All four residential environmental factors affected TV/radio listening disturbance caused by road traffic noise.