文档介绍：河北工业大学硕士学位论文 i 基于运行速度的高速公路线形评价方法研究 摘要高速公路是一条全封闭的专供汽车分向行驶的三维线形实体。行驶在高速公路上的汽车首先体现给人们的便是其运行速度,运行速度是各线形指标综合作用的结果,因此研究运行速度对线形评价方法的研究具有很高的实用意义。 公路线形设计应使线形连续、指标均衡,使汽车行驶安全、舒适。平原区高速公路的线形指标值一般都较高,目前规范采用的是基于设计速度的线形设计方法,所给指标值或范围都较为宽松,这种设计方法本身存在一定的缺陷。本文通过实地采集高速公路上的运行速度值,总结了平原区高速公路运行速度的特性,给出了各线形(直线段、曲线段)上运行速度 V 85的范围,基于调查的运行速度值建立了平面、纵断面及平纵组合下的运行速度模型。结合给出的基于运行速度的线形连续性、舒适性评价标准,以所调查实测数据的统计分析为基础,通过所建运行速度模型的函数关系,得到了适合于平原区高速公路的平曲线半径—R 的合理取值范围。 最后,本文结合工程实例—京沪高速(天津北段)的实际线形,采用文中建立的运行速度模型及评价标准与方法,给出了实际的评价、检验结论。实践证明文中所建模型及所得结论对我原区高速公路的线形设计具有较高的指导意义。 关键词: 运行速度,设计速度,线形,评价, SPSS ,回归,连续性,舒适性基于运行速度的高速公路线形评价方法研究 ii Study On The Evaluation Method Of Expressway Alignment Based On Operating Speed ABSTRACT The expressway is a three-dimensional alig nment entity which is entire seal for operating speed of the automobiles is reflected to people at first on expressway, it is prehensive result of the alignment indexes, so it is high practical value to study operating speed to the evaluation method of alignment. The target of the al ignment design is consistency, st eady, security, alignment indexes are generally great of plain expreeway, and the design method of specification is based on design speed at present, this kind of design method itself ha s certain this article, the characteristic is summarized and th e operating speed model is set up of horizontal, vertical, and bination based on investigated operating speed, the V 85 ’s scope is also given about each kind of alignment ( linear section, curve section ).This article has set up the evaluation criterion, and done the st atistical analysis abou t the investigated data, so the suitable horizontal curve radius puted through th e functional relationship of the operating speed model. Finally, adopting the operating spee d model and evaluation crit erion and method set up in the article, this text has given the eval uation conclushion about the project instance — Beijing-Shanghai