高速公路自然景观段落划分及人文节点设置方法  

Method of natural landscape segmentation and cultural node design for express highway

作　　者：王荣华[1] 许金良[1] 王子赓 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]密歇根理工大学土木与环境工程学院,密歇根霍顿49931

出　　处：《长安大学学报（自然科学版）》2015年第2期122-131,共10页Journal of Chang’an University(Natural Science Edition)

基　　金：陕西省交通运输厅科技项目(08-08R)

摘　　要：为美化高速公路行车视觉空间,增强公路景观规划的可操作性,分析公路自然景观资源属性,针对走廊带沿线自然景观资源的序列性,运用有序样品的最优分割法(OSOS)划分高速公路自然景观段落;通过行车单调性试验和景观节点设置间隔试验,推导出景观节点设置间隔公式,计算人文景观节点位置;最后以西安—宝鸡高速公路为例,用研究的方法划分自然景观段落,计算景观节点位置,并确定各景观段落主题。研究结果表明:提出OSOS法划分自然景观段落符合工程实际,操作简单,具有很强的实用性;人文景观节点的设置间隔宜为V85/12km,以节点为控制点、景观段落主题为主导,设计景观节点处的景观要素或景观小品;有序样品的最优分割法和节点控制法,能够有效指导高速公路景观段落规划与节点设计。In order to improve the aesthetic qualities of expressway corridor and enhance the operability of landscape planning,the properties of natural landscape resources was analyzed in this paper.Besides,according to the sequentiality of natural landscape resources along the corridor,optimal segmentation of ordered samples（OSOS）was proposed to divide natural landscape segment of expressway.Through experiments of driving monotony and intervals of landscape nodes,the interval formula was deduced to calculate the cultural landscape node position.In the case of Xi＇an-Baoji expressway,the research method was adopted to classify the natural landscape segments,calculate their node positions and determine the theme of each segment.The results show that the OSOS method is consistent with engineering practice,is easy to operate and has strong practicality.The interval distance between cultural landscape nodes should be V85/12 kilometers and the design of landscape elements or landscape sketches should take nodes as the control nodes and be dominated by the themes of landscape segments.The method of OSOS and node controlcan provide practical guidance for expressway landscape segment planning and nodes design.

关 键 词：交通工程 高速公路 景观段落 节点 有序样品 聚类分析 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]