贴线率概念、算法与偏好视角下的取值研究——以南京江宁土山路为例  

A STUDY ON THE CONCEPT, ALGORITHM, AND PREFERENCE-ORIENTED VALUE REFINEMENT OF BUILD-TO-LINE RATE: TAKING TUSHAN ROAD IN JIANGNING, NANJING, AS AN EXAMPLE

作　　者：高源[1] 刘叶琳 GAO Yuan;LIU Yelin

机构地区：[1]东南大学建筑学院 [2]浙江省城乡规划设计研究院

出　　处：《城市规划》2022年第11期52-60,共9页City Planning Review

摘　　要：作为街道界面管控的重要量化指标,贴线率在规划实践中应用广泛,但也存在算法多样的问题。本文通过对贴线率的概念发展溯源,明确其以街道界面的连续性管控为根本目的。进而从地块、街区两个层面建构算法公式,并从常用范围、个案调整原则与极值情况对公式中分母分子的计算方式做出设定。最后基于理论取值梳理,针对南京江宁土山路项目开展公众偏好视角下的贴线率取值实验与调查,提出地块层面贴线率主要针对单个地块范围内的街道长度,塑造连续齐整中兼有微小空间变化的实体界面,建议取值为[70%,100%],条件许可时建议为[80%,90%]。街区层面贴线率主要针对由多个地块构筑的街道长度,通过虚实界面的比例设定,获得实体界面连续齐整性与虚体界面自然活动性的统一,建议取值为[50%,70%]。As an important indicator of street interface control,build-to-line rate is widely used in the planning practice,but various algorithms are a problem that couldn’t be ignored.Through tracing back its concept development,this paper defines its fundamental purpose of controlling the continuity of the street interface.The algorithm formula is applied at both plot and block levels,and relevant numerator and denominator are set according to common range,adjustment rule,and extreme values.Finally,based on the theoretical value,experiment and investigation for preference-oriented value refinement is carried out on Tushan road in Jiangning,Nanjing.It is proposed that at plot level,the recommended value for build-to-line rate is[70%,100%]and[80%,90%]when conditions permit,which can create a continuous physical street interface with small spatial changes within a single plot.As for block level,the recommended value is[50%,70%],which considers the interface of the whole street across multiple plots to obtain a unity between the continuity of the physical interface and the natural activity of the imaginary interface.

关 键 词：贴线率 街道界面 算法 偏好视角 地块层面 街区层面 

分 类 号：TU984.113[建筑科学—城市规划与设计]