面向行人的城市开放空间疏散照明需求研究

Research on Pedestrian-oriented Evacuation Lighting Demand of Urban Open Space

我国城市居民的户外夜生活逐渐丰富,部分区域人流聚集较多,健全的疏散照明体系驱待建立,而现今相关研究较少,尚未明确影响夜间疏散的各项因素。本文就夜间城市开放空间的照明疏散问题进行讨论,依托城市开放空间的功能特点对其分类,依据视觉心理学理论,采用主观评价法对用户需求进行分析。从不同视角建立不同类型城市开放空间疏散照明设计影响因素重要性优先级,具体为面向人流分析,城市级公共空间更容易出现聚集现象:基于环境特征来看,城市级公共空间使环境特征更容易被识别:根据进一步照明需求分析可知,照明参数中光源模式和亮度优先级较高且用户更偏好闪烁光源和异形光源,光色中绿色、红色的识别度较高。由此,本文探讨了不同城市开放空间疏散照明设计指标,旨在为其设计实践提供参考依据。

The outdoor nightlife of urban residents in China is gradually enriched,and there aremore people in some areas.Asound evacuation lighting systemneeds to be established.However,there are few studies.on outdoor evacuation lighting,and the influencing factors have not been clarified.This paper will discuss the lighting evacuation ofurbanopen space at night,classify it based on thefunctional characteristics of urban open space,and analyze the needs of users by subjective evaluation method according to the theory of visual psychology.Establish the importance priority of the influencing factors ofevacuation lightingdesign in different types of urban open space from different perspectives,specificallyforthe analysis of people flow,and urban open spaces are more prone to aggregation;from the perspective of environmental characteristics,urban open spaceis an environmental feature that is easier tobe identified;further from the lighting demand analysis,it can be seen that the light sourcemode and brightness priority in the lighting parameters are higher,and users prefer flashing light sources and heterosexual light sources,and the recognition degree of green and red in the light color is higher.Based on this,the design indexes of evacuation lighting in different urban open spaces are discussed,which provides a referencefor furtherdesign practice.