Evaluation of Environmental Impact of Aircraft Operation Noise at Nanjing Lukou International Airport

The impact of airport noise on communities around airports is an important issue in the field of environmental acoustics. Noise maps can directly reflect the exposure of noise pollution and the impact of different noise sources. Current airport noise environmental impact assessment studies were focused on the calculation of the influence range of airport noise and aircraft noise contour map, but seldom were focused on the influence of building spatial distribution and road traffic noise on the acoustic environment of the airport surrounding area. In this paper, the simulation method in Technical guidelines for noise impact assessment ISO 9613–2:1996 is adopted to build a comprehensive acoustic model including buildings, roads and ground factors for selected areas around Nanjing Lukou Airport based on GIS, and to complete the calibration of the intensity of the simulated sound source with field measured noise data. The influence of different noise sources is studied by numerical simulation and field measurement and the acoustic environment around Nanjing Lukou Airport is evaluated comprehensively. The results show that the fitting deviation between the simulated sound pressure level and the measured sound pressure level is within 1 dB, which verifies the validity of the simulation results. The spatial distribution of buildings cannot be ignored in the acoustic environment of the community around the airport. Road traffic noise also has an important impact on the noise level in the area around the airport, which cannot be ignored compared with the impact of aircraft take-off and landing noise.