融入偏好的公路多目标三维导向线生成模型及算法研究

项目名称： 融入偏好的公路多目标三维导向线生成模型及算法研究

项目编号： No.51478480

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 建筑环境与结构工程学科

项目作者： 缪鹍

作者单位： 中南大学

项目金额： 80万元

中文摘要： 路线带是公路走向确定后具体选择路线经过的地带，它所确定的初步位置是进一步线形线位设计的依据。目前，国内外对计算机选线开展了广泛的研究，但是由于选线问题本身的复杂性及处理大范围地形地物数据在现阶段的困难，到目前为止，很难有一种方法或模型能真正大规模地应用。为缩减问题规模，本项目以代表路线带空间位置的导向线为研究对象，基于传统的HAO模型，建立一种考虑路线带多目标因素的三维导向线生成模型。 RPSO算法是课题组先期提出的粒子群改进算法，它具有初期收敛迅速且收敛曲线具有明显拐点的特性，与导向线无需精细化搜索的特点相契合，二者结合，并把早期收敛拐点作为迭代终止点，将提高导向线生成的效率。此外，现有的多目标三维选线模型均未将设计者的偏好引入，本课题拟研究具有偏好的多目标RPSO算法，将路线带偏好区域和偏好目标纳入模型，满足三维走向线模型的应用需要。

中文关键词： 公路线形；选线；路线带；多目标；算法

英文摘要： Alignment zone is the specific route selection zone after the determination of highwaycorridor, which determines the initial location of a route and is the basis of the design of location and geometric parameter. At present, the extensive research on computer route selection was carried out both at home and abroad. But there is almost no model that really applied on a large scale because of the complexity of the problem and the difficulties on dealing with a wide range of terrain data. To reduce the burden of calculation of route selection, this application takes the corridor alignment which represents the space position of route as the researchsubject.Based on conventional HAO model, we are planning to build a 3D corridor model which considers multiple objective factors of alignment zone. RPSO algorithm is an improved particle swarm optimization algorithm proposed by our research group previously, the algorithm has the advantages of rapid convergence and has obvious inflexion,which fit in with the corridor alignment on the characteristic of fast searching. With the combination, the early stage inflection point of convergence is used as termination point of iteration, and the generating efficiency of corridor alignment will be improved.In addition, for that there is no 3D location model which takes the preference into consideration at the moment, this topic is ready to study the Multi-Objective RPSO algorithm with preference which can incorporate preference area of alignment zone and preference objective into model in order to meet the application of 3D corridor model.

英文关键词： Highway alignment;Route selection;Corridor location;Multi-objective;Algorithms