Objective Since the village landscape is dominated by low-rise buildings with cultivated land widely distributed around, in-depth researches need to be conducted on the traffic noise in this space morphology.

Method Taking a village in Jiangsu Province adjacent to complex traffic lines as an example, noise monitoring points are set at different key positions, including high-speed railway lines, expressways, national highways, and village houses. Using signal processing methods such as spectrum and time-frequency analysis, the spatial distribution, propagation, and attenuation laws of various types of traffic noise within the village are studied.

Result & Conclusion  From the monitoring points adjacent to the high-speed railway and expressway on the north side of the village to the central position, the high-speed railway noise attenuation reaches 18.6 dB(A), with particularly significant attenuation in the high-frequency band above 2 000 Hz, and the maximum attenuation of expressway traffic noise reaches 15.3 dB(A). From the national highway on the south side to the center of the village, the maximum highway noise attenuation is 18.0 dB(A). Traffic noise from the high-speed railway, expressway, and national highway attenuates continuously as the distance from the lines increases: the further the distance, the slower the attenuation rate. There is significant attenuation of all above traffic noises in frequency bands of 1 000 Hz and above, as well as substantial attenuation at mid-to-low frequencies such as 100 Hz, 160 Hz, and 250 Hz.