基于声环境评价的公共交通优先设置形式比选研究

A Comparative Study on setting forms of Public Transport Priority based on sound environment impact assessment

摘要:

根据各类公共交通优先设置形式的声环境特性，选择道路公交专用道（BUS）、道路交通快速公交系统（BRT）、高架地铁（MR），高架轻轨（LR）与高架低速磁悬浮（LM）进行声环境评价比选研究。首先分析了上述五种公交优先设置形式的噪声影响因素；然后选择了道路交通与轨道交通公交优先客运走廊的噪声计算方法，并确定了相关参数；在此基础上，进行了五种公共交通优先设置形式的噪声情景设置、噪声计算与对比分析。研究结果表明，在城市公交优先客运走廊上，公交优先设置形式对声环境的影响比客运量变化的影响大；在高峰小时客运量2~5万客运走廊上，轻轨具有声环境优势；在高峰小时客运量5万以上客运走廊上，地铁具有声环境优势；在声环境特别敏感区域，宜采用低速磁悬浮。

Abstract:

According to the sound environmental characteristic of different setting forms of public transport priority, Bus lane line, Bus Rapid Transit line, and elevated rail based Metro Rail, Light Rail, Low-speed Maglev are selected to compare with each other. Firstly, the sound influence factors of above mentioned five mode is analyzed; then the sound level calculated method and its parameters are determined; lastly, sound environment impact assessment of five setting forms of Public Transport Priority is carried out under different background scene. The main results of this research are: The setting form of Public Transport Priority has a greater sound environmental impact of the urban passenger corridor then passenger volume; the sound environment impact superiority lies in Light Rail to 20~50 thousand rush hour volume of urban passenger corridor and Metro Rail to 50 thousand more; in the most sound sensitive area, the Low-speed Maglev is the best choice.