为解决民用机场净空区内障碍物评价中缺少定量指标的问题,通过对净空要求的分析及调研资料的整理,利用模糊综合评价、层次分析法等建立民用机场净空区范围内障碍物安全评价模型,运用实际测量的障碍物距离跑道中线的距离、障碍物在各限制面中所处位置、障碍物高及其物理特性作为评价指标对障碍物风险等级进行定量化评价。在对评价结果的处理方面采用等级加权向量的方法,使结果更为直观,较传统的机场净空区障碍物评价更具合理性。 In order to solve the problem of lacking of quantitative index in the evaluation of obstacle in civil airport clearance area, this paper establishes the model of obstacle safety assessment in the clearance area of ​​civil airport by means of fuzzy comprehensive evaluation and analytic hierarchy process The quantitative evaluation of the obstacle risk level is carried out by using the actual measured distance from the runway centerline, the position of the obstacle in each limiting plane, the height of the obstacle and its physical characteristics as the evaluation indexes. The method of using the rank-weight vector in the processing of evaluation results makes the result more direct and more reasonable than the traditional evaluation of the airport clearance.