论文部分内容阅读
快速与高架已是城市现代化交通运输的发展方向之一。与地下铁道相比,高架不仅具有造价低,施工周期短的优点,而且长期运营养护费也较少。但随之而来的是交通噪声污染问题。如何预测交通噪声对环境的影响和控制方法已成为一个十分重要的课题。本文结合国内如上海等城市规划中将新建的高架快速电气列车交通干道工程,对主要噪声源及其声传播规律进行了分析研究,并提出道路两侧声场分布的预测方法。
Rapid and elevated transport is one of the development of modern city. Compared with the subway, the elevated not only has the advantages of low cost, short construction period, but also less long-term operation and maintenance costs. However, traffic noise pollution is a problem. How to predict the impact of traffic noise on the environment and control methods has become a very important issue. In this paper, the main noise sources and their sound propagation rules are analyzed and studied based on the newly constructed high-speed rapid transit trains in urban planning such as Shanghai. A prediction method of sound field distribution on both sides of the road is proposed.