Danger degree regionalization of road route alignment design in mountain hazardous areas.
山区灾害多发区段道路选线的危险度区划。
Answer 1: the route alignment of Qishen Road and Zhongchun Road cannot be changed but the exact position can be adjusted.
答：七莘路及中春路路线的走向不能变，具体的位置可以调整。
Graph overlay method is used in route alignment noise impact assessment to provide a basis for route alignment optimal selection.
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。
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