城市高架桥下空间视觉安全感知评价与影响因素探析  

An Exploration of Visual Safety Perception Evaluation and Influencing Factors in the Space under Urban Viaducts

作　　者：李俊 郑少鹏[1,2] 

机构地区：[1]华南理工大学建筑学院 [2]亚热带建筑与城市科学全国重点实验室

出　　处：《建筑与文化》2025年第3期168-171,共4页Architecture & Culture

基　　金：广东省哲学社会科学规划项目(项目编号:GD23XYS012)。

摘　　要：城市高架桥下空间作为城市交通基础设施的衍生空间,是一种常见但又不被重视的城市空间类型,其视觉安全感知是建构城市整体安全感知中不可或缺且易被忽视的组成部分,准确识别影响其视觉安全感知的视觉因素具有重要意义。文章通过图像调研问卷,获得了其视觉安全感知评价的初步结果,并结合机器学习的方法得出影响视觉安全感知的要素集合,包括植物、天空、片墙等13种构成要素,这些要素与空间视觉安全感存在明显的正负影响差异并大多呈非线性关系,应被优先考虑与重点关注,为后续高架桥下空间的提升改造提供参考。As the main component of urban space system,the visual safety perception of the space under urban viaduct has an important impact on the physical and mental health of citizens.It is of great significance to accurately identify the visual factors that affect their safety perception.This paper obtains the evaluation results of its visual safety perception through an image questionnaire and combines the method of machine learning to obtain the following conclusion:The main factors affecting the perception of visual security are 13 in number,such as plants,sky,wall,etc.,which should be prioritized.Most of these factors have a nonlinear relationship with space security,and there are obvious positive and negative impact differences.

关 键 词：城市更新 高架桥下空间 视觉安全感知 机器学习 SHAP 

分 类 号：G63[文化科学—教育学]