基于遗传算法的公路自动选线与安全评价方法  

Automatic Highway Alignment Selection and Safety Evaluation Method Based on Genetic Algorithm

作　　者：朱雷鹏 张贵阳 张志清 ZHU Lei-peng;ZHANG Gui-yang;ZHANG Zhi-qing(College of Mechanical and Electrical Engineering,Fuzhou 350002,China;STECOL Corporation,Tianjin 300384,China)

机构地区：[1]北京工业大学城市交通学院交通工程北京市重点实验室,北京100124 [2]中国电建市政建设集团有限公司,天津300384

出　　处：《科学技术与工程》2023年第29期12672-12678,共7页Science Technology and Engineering

基　　金：国家自然科学基金面上项目(52178403,51578027)。

摘　　要：针对公路自动选线交点搜索区域有限、评价方法不足等问题,基于遗传算法,通过构建公路线形约束模型、公路自动选线优化模型及运行速度预测模型,实现了公路三维空间选线方案自动寻优与安全性评价。结果表明:基于遗传算法的公路自动选线与安全评价方法,可以在给定的设计区域、拟定的技术、经济和安全条件下,克服路线交点只能在给定断面寻优的不足,实现设计方案的自动收敛和优化。在考虑路线安全性条件下,可以保证路线交点在拟定的选线区域全局进行自动搜索,验证了基于遗传算法的公路自动选线方法的可行性,并提升了选线工作的效率。该方法可以实现以速度一致性为指标的道路线形安全性评价,提高了选线方案的安全性设计水平。研究结果可为完善公路自动选线的理论基础,继续开展公路选线自动寻优方法的研究提供借鉴。Aiming at the problems of limited search area and inadequate evaluation methods for automatic highway alignment selection junction,based on genetic algorithm,the highway alignment constraint model,automatic highway alignment optimization model and operation speed prediction model were constructed to realize automatic highway three-dimensional spatial alignment solution search and safety evaluation.The results show that the automatic alignment selection and safety evaluation method based on genetic algorithm can overcome the deficiency that alignment junction can only be searched for in a given section under the given design area,proposed technical,economic and safety conditions,and achieve the automatic convergence and optimization of the design scheme.Under the condition of alignment safety,the alignment junction can be guaranteed to be searched automatically in the proposed alignment selection area globally,which verifies the feasibility of the automatic highway alignment selection method based on genetic algorithm and improves the efficiency of the alignment selection work.The method can realize the evaluation of road alignment safety with speed consistency as the index,and improve the safety design level of the alignment selection scheme.The study can provide reference for improving the theoretical basis of automatic road alignment selection and continuing the research on automatic road alignment selection methods.

关 键 词：公路工程 公路选线 遗传算法 速度一致性 安全性 

分 类 号：U412[交通运输工程—道路与铁道工程]