Starting with 40 environmental protecting acceptance check reportsof highway construction projects, number of sensitive points, noise values and noise control measures in EIA were compared, with which after highway been constructed .

• 从所选的40条公路的竣工环境保护验收报告入手,对公路建成后与环境影响评价阶段噪声敏感点的数量变化、噪声实测值与环评预测值的差异、实际的噪声防治措施与环评确定措施的差异进行了对比分析。