【摘要】 采用基于地理信息系统的图形叠置法对线路比选方案的噪声影响情况进行评价。评价中充分利用地理信息系统空间分析和处理属性数据的功能,计算比较线路方案对周围环境的噪声影响程度。应用图形叠置法综合考虑周围环境的噪声敏感程度和线路对环境的噪声影响分布。两者结合,能够直观、全面地展现铁路线路给周围环境带来的噪声影响状况。更多还原

【Abstract】 Graph overlay method is used in route alignment noise impact assessment to provide a basis for route alignment optimal selection. In this process, Geographic Information System with its powerful function of handling attributes and spatial analysis is adopted. Through spatial analysis and calculation, each route alignment’s noise impact grade is estimated. By means of graph overlay method, noise sensitivity degree of the surroundings and noise impact extent distribution are taken into account. With the combination of both methods, noise impact on the surroundings caused by the route alignment is presented fully and directly.更多还原