基于视频拍摄的长沙市十字交叉路口行人过街分心的流行特征分析

Epidemiological characteristics of street-crossing distraction among pedestrians at road intersections in Changsha City based on video-taping

目的 分析长沙市过街行人常见分心类型的流行特征。方法 采用多阶段随机抽样获取研究对象,通过视频拍摄和人工转录获得长沙市20个十字交叉路口过街行人的常见分心发生率及其特征(包括:发生频次、分心时长)。采用χ^(2)检验、Cochran-Armitage趋势检验、Kruskal-Wallis H检验进行统计分析。结果 共观察到25 436名20岁及以上过街行人,分心发生率为34.32%(95%CI:33.73%~34.90%),女性、20~<40岁、下午和周末出行行人的分心发生率分别高于男性、其他年龄组、上午和工作日出行者(均有P<0.05)。手机使用、与其他行人交谈、吃喝东西/吸烟的发生率分别为11.06%、19.62%和2.13%。三类分心的发生频次均以1~2次为主,与其他行人交谈(10.0 s)的中位分心时长高于手机使用(9.0 s)和吃喝东西/吸烟(8.0 s)。结论 长沙市十字交叉路口过街行人分心发生率高,与其他行人交谈和手机使用是最常见的分心类型。不同分心类型的发生频次和分心时长存在差异。

Objective To analyze the incidences and epidemiological characteristics of common types of street-crossing distraction among pedestrians in Changsha City.Methods Multi-stage random sampling was used to obtain study objects.Video-taping and artificial transcription were used to obtain the data of common types of distraction and their characteristics(including frequency and duration of distraction) among street-crossing pedestrians at 20 road intersections in Changsha.Chi-square test,Cochran-Armitage trend test,and Kruskal-Wallis H test were used for statistical analysis.Results A total of 25 436 pedestrians aged 20 years and older were observed,with distraction incidence of 34.32%.Females,pedestrians aged 20-<40 years and appeared in the afternoon and weekend had higher incidences of distraction than males,other age groups,and appeared in the morning and weekday(all P<0.05).Mobile phone use,the incidences of talking with other pedestrians,and eating/drinking/smoking were 11.06%,19.62%,and 2.13%,respectively.One to two times was the most common frequency among three types of distraction.The median of total duration of distraction for talking with other pedestrians(10.0 s) was higher than mobile phone use(9.0 s) and eating/drinking/smoking(8.0 s).Conclusions Street-crossing distraction was prevalent among pedestrians at road intersections in Changsha City.Talking with other pedestrians and mobile phone use were the most prevalent type of distraction.The frequency and duration of distraction differed significantly among different types of distraction.