基于多目标决策的山区灾害多发地段公路选线优化

Research on optimization of disaster-prone mountain route selection based on multiobjective decision making method

公路多方案研究、论证和比选是合理确定路线方案的前提,是公路总体设计的关键.针对山区地形的特点,根据山区公路选线的基本原则,建立了山区选线方案的评价指标体系,并求解出了各评估指标的权重,借助模糊数学理论,建立了基于多目标决策的山区公路选线优选模型,提高了解决山区选线问题的科学性.以某山岭重丘区二级公路的选线问题为例进行了分析和计算,验证了基于多目标决策的山区公路选线优选模型的合理性与有效性,证明了该模型在实际应用中具有较强的可行性.

The research,demonstration and comparison of multi-plan is the precondition for determining reasonable route project,is also the key of the route general design.In view of the characteristic of route selection in mountain hazardous areas,it establishes the evaluation index system of the mountain disaster-prone route selection.Then it finds the solution of the weight of each index.In virtue of fuzzy mathematics,it builds the multi-objective decision optimization model of the disaster-prone mountain route selection.It can improve the scientific level of solving mountain route selection.At last,a case study of second level route selection problem in some mountain area is given.The result verifies the rationality and the effectivity of the model based on the multiobjective decision making method;and it is proved that the model has the better feasibility in practical applications.