The environmental impact assessment (EIA) of vibration is the focus of EIA of city track transportation construction project .This article expounds several problems of vibration EIA of light rail (underground section) ,and analyzes the influences of city rapid rail transit on environmental vibration with examples ,so as to provide references for the prevention and control of pollution .%指出了振动环境影响评价是城市轨道交通建设项目环境影响评价的重点评价专题，剖析了轻轨（地下段）振动环境影响评价重点值得关注的几个问题，结合实例进一步探讨了城市快速轨道交通对环境振动产生的影响，为污染防治提供依据。
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