【作者】 于鹏辉；

【导师】 屠书荣；

【作者基本信息】 重庆交通大学 ， 道路与铁道工程， 2011， 硕士

【摘要】 公路线形是公路的骨架。线形设计质量的好坏,不仅控制着公路的投资规模,而且影响汽车行驶的安全性、舒适性和经济性。线形质量评价是一个庞大而复杂的系统,影响因素多,涉及面广。目前有关高速公路线形质量评价方面的研究多局限于对线形质量某个方面的评价,这样难免有些“顾此失彼”,不能全面反映线形质量的好坏。为全面了解和掌握现有公路的线形质量状况,有必要对线形质量进行综合评价,据此提出了高速公路线形质量综合评价系统的研究课题。本文通过对高速公路线形的安全性、舒适性、经济性及与环境的协调性等现有评价方法及指标的分析,筛选出具有代表性的线形质量综合评价指标,构建了高速公路线形质量综合评价指标体系,并结合指标的具体特点,深入研究了评价指标值的获取方法;对不同性质的评价指标进行了指标量化及无量纲化处理研究,解决了定性描述指标的数据问题和各评价指标的统一比较问题;对评价指标权重的确定方法进行了研究,提出了基于AHP/信息熵的组合权重确定方法;应用模糊识别原理,根据线形质量级别划分标准,提出了高速公路线形质量综合评价模型及评价方法。通过对重庆绕城高速公路某路段线形质量进行综合评价,验证了本文所述评价系统及方法的可行性和可靠性。根据计算过程及评价结论认真分析评价系统方法存在的问题,提出了今后研究的方向。本文研究的价值在于,通过对高速公路线形使用质量的综合评价,使公路建设者和管理者对高速公路的线形使用质量有更为全面的了解,为更有针对性地进行高速公路建设、管理提供理论依据和技术支持。更多还原

【Abstract】 Freeway alignment is the framework of highway. The quality of linear design not only control the investment scale of roads, and influence safety, comfort and economy. of driving vehicles. The assessment of linear quality is a large and complex system, which haves many factors and more aspects. Current studies on relevant evaluations of the quality of freeway alignment confined to some aspect , that cannot reflect the linear quality unavoidably. In order to understand and master the condition of the linear quality of existing roads, it is necessary to evaluate the linear quality compositely, thus it puts forward the research on synthetic evaluation system of the freeway alignment quality.This article selected representative synthetic evaluation index of the linear quality and constructed comprehensive evaluation-index system of freeway alignment quality through analysing the safety, comfort, economy and coordination with the environment of highway alignment, and combined with the specific characteristics of index, the method of index is studied in detail. It researched quantification and the dimensionless processing of different property index, and solved data problems of indicators qualitatively and the problem to compare index uniformly. It studied the method to determine the assessment index values, proposed the way to determine the weight based on AHP / entropy method. Using fuzzy recognition principle, according to line quality criteria for the classification level,it put forward evaluation model and method on synthetic quality of freeway alignment. The feasibility and reliability of the evaluation system and method is proved through evaluating alignment quality of loop expressway in Chongqing comprehensively. The problems and future direction of evaluation model and method according to the calculation procedure and evaluation conclusion. The value of the paper lies that making builder and managers of roads understanding the alignment quality comprehensively through comprehensive evaluation, and providing theory basis and the technical support to construct and manage freeways more targeted.更多还原