Analysis of Noise Pollution Characteristics of Highway Road Area

To investigate the noise pollution characteristics of the highway road area, the G30 Lianhuo Expressway in Shandan County, Zhangye city was taken as the research object, and the monitored noise pollution was statistically analyzed based on clear noise pollution boundaries. A multi-scale geographically weighted regression model was used to explore the spatial scale and spatial differentiation of noise pollution influencing factors in the highway road area. The results show that the boundary limit of highway road noise pollution is 300 m from the highway boundary. The noise pollution distribution shows an obvious gradient effect, and the regression coefficients of noise on the constant term, wind speed, wind direction, and boundary distance are significant. However, the regression coefficients of traffic volume and temperature are not significant.