GIS与多属性决策理论在公路飞机跑道选址中的应用

Application of GIS and multiple attribute decision theory in highway runway locating

通过对影响公路飞机跑道建设、使用和保障3个方面因素进行分析,得到了公路机场跑道选址评价指标体系。运用公路网地理信息系统的信息管理与空间分析功能,获取了若干可行待选方案的样本集,构建了多属性决策模型,根据最优化理论确定各属性要素的权重值,进而确定各备选方案考核目标值及最优方案,最后以某公路飞机跑道选址为例进行了实例验证。分析结果表明:4个备选方案的考核目标值依次为0.0226、0.0843、0.0158、0.0229,比较得出最佳方案为方案3,符合实际,因此,该选址方法有效。

The influencing factors of construction,use and safeguard for highway runway were analyzed,and the evaluating index system of highway runway locating was brought out.The functions of information management and spatial analysis for highway network GIS were used,and the sample set of feasible locations for highway runway was obtained.The attribute weights of the factors were ascertained by establishing multiple attribute decision model and using optimization theory,and the check-up values of alternatives and the best scheme were gotten.The method of selecting site was examined with an example.Analysis result indicates that the check-up values of four alternatives are 0.022 6,0.084 3,0.015 8,0.022 9 respectively,the best one is scheme 3,which accords with fact,so the method is available.1 tab,3 figs,15 refs.