基于有效使用频率的公共空间无障碍设施定量化研究--以北京奥林匹克公园中心区为例

Quantitative Evaluation of Barrier-free Facilities in Public Space Based on Effective Usage Frequency——A Case Study of the Central Area of Beijing Olympic Park

通过环境行为学相关调查手段,从使用者角度对北京奥林匹克公园中心区的无障碍设施进行定量化评价与分析。通过无障碍设施有效使用频率调查研究,发现在8项调查指标中,有效使用频率最高的为厕所,其他依次为坡道>坐凳>绿化>出入口>地面>信息亭>电话亭,而满意度由高到低依次为地面>坡道>出入口>盲道>标识=坐凳>厕所>绿化,两者主要指标存在显著负相关,说明对使用频率高的无障碍设施的需求和要求也较高。根据无障碍总体评价对各项评价指标进行多元线性回归,发现坐凳、绿化、厕所等评价指标的贡献度高,说明其使用频率与重要度均较高。将无障碍设施使用者的基本情况与设施使用特征进行logistic回归与聚类降维,可发现方式性因子与目的性因子会明显影响受访者对中心区无障碍设施的总体评价。通过总结以上使用规律,为改善公共空间无障碍设施的设置与管理提供参考性意见。

From the perspective of users,the quantitative evaluation of the barrier-free facilities in the central area of Beijing Olympic Park is discussed by means of environmental behavior.In the survey,the most effective usage frequency of barrier-free facilities which contains eight survey indicators is the utilization of Toilet,followed by Ramp>Stool>Greening>Entrance>Ground>Information>Booth,and the satisfaction indicator which has negative correlation with frequency shows that:Ground>Ramp>Entrance>Blind way>Sign system=Stool>Toilet>Greening in descending order.According to the multi-linear regression of the comprehensive evaluation,the indexes such as Stool,Greening and Toilet are found to be higher,and their frequency and importance are also higher.Logistic regression and cluster dimensionality reduction are used to analyze the basic requirement of users and the characteristics of facility utilization.It was found that the modality factor and objective factor significantly affect the respondents'overall evaluation of barrier-free facilities in the central area.This conclusion provides reference to improve the public space barrierfree facilities for management.