摘要
随着城市更新进程的推进,重庆传统风貌区逐渐经历了不同程度的改造,然而当下更新现状缺乏量化评价和精细管控.街巷作为传统风貌区最主要的公共空间,是衡量空间品质的重要切入点.选取重庆传统风貌区共149个样点,采用街道空间品质测度方法,基于街景图像量化空间客观特征和主观感知评价,并将两者进行统计学分析.结果发现,重庆传统风貌区的围合感营造较好;更新改造可以大幅度提升通透性、整洁协调度和意象化.得到显著影响主观感知评价的空间客观因素有:界面密度、宽高比、绿视率、天空开阔度、围合度、传统风貌建筑、原生树木、文物及历史建筑、色彩饱和度、色彩明度、业态数量以及改造强度.研究旨在通过空间客观特征的优化来提升主观感知,从而实现街巷空间品质的优化.
Abstract
With the advancement of the urban renewal process,the traditional districts in Chongqing have gradually experienced different degrees of transformation,and there currently needs to be more quantitative evaluation and fine control of the current renewal status.As traditional districts'most important public spaces,streets,and alleys are essential entry points for measuring spatial quality.In this study,149 sample points in traditional districts of Chongqing were selected.The street spatial quality measurement method was used to quantify the objective spatial characteristics and subjective perception evaluation based on streetscape im-ages,and the two were statistically analyzed.It is found that the sense of enclosure is better created in the traditional districts of Chongqing;the renewal and renovation can substantially improve transparency,tidiness,and imageability.The objective spatial factors that significantly influence the subjective perception evaluation are visible green index,sky view factor,interface density,aspect ratio,visible green index,sky view factor,enclosure,traditional landscape buildings,native trees,cultural relics and his-torical buildings,color saturation,color brightness,number of businesses,and renovation intensity.This study aims to optimize the spatial quality of streets and alleys by improving subjective perception by optimizing objective spatial characteristics.
NETL
NSTL
万方数据