关键词: 道路交通噪声, 模拟与评估系统, 地理信息系统, 噪声地图

Abstract:

Using the urban environment noise emission and propagation model,also considering the attenuation impact of buildings and tree belts on noise , an urban environment noise simulation and evaluation system named “Zhong Da Sheng Tu” was developed with the help of geographical information system(GIS). The noise emission，propagation model of point, line and plane source were set up in the system. As for the traffic noise of line source, GIS was used to obtain the information of roads and buildings. The road traffic noise distribution of urban area was calculated with the vehicle noise emission model. The calculation results were imported to GIS to make the traffic noise map. At last, the system was used to simulate the urban traffic noise and evaluate the effect of noise reduction measures, results show that the systems algorithm is accurate and efficient.

Key words: road traffic noise, simulation and evaluation system, geographical information system, noise map