考虑违章行人的行人过街位置分布模型

发布时间：2018-05-27 06:12

本文选题：交通运输系统工程 + 信号交叉口　；参考：《吉林大学学报(工学版)》2017年03期

【摘要】：利用视频处理技术对过街行人的全时空信息进行采集,分析了违章行人与转弯车辆冲突的内在规律,并提出了行人过街位置分布的建模方法。首先,利用调查数据定性分析了行人过街位置对人车冲突的影响。其次,通过对多交叉口不同时刻行人(包括违章行人)行走位置的统计分析,得到绿灯消散时间和人行横道长度对行人过街位置的影响。结合调查数据,利用Gauss函数对不同时刻的行人过街位置分布进行建模,建立绿灯消散时间和人行横道长度与Gauss函数模型参数的关系等式,拟合模型的R~2分别达到0.9、0.93、0.97,表明模型能够很好地反映行人过街位置分布规律。最后,对模型进行了验证,在所建立模型的基础上,分析了行人过街位置分布规律对行人与转弯车辆冲突区域判别的作用,并提出减小冲突区域的优化方法。
[Abstract]:The video processing technology is used to collect the whole time and space information of pedestrian crossing the street, the inherent law of the conflict between illegal pedestrian and turning vehicle is analyzed, and the modeling method of pedestrian crossing location distribution is put forward. Firstly, the influence of pedestrian crossing position on vehicle conflict is analyzed qualitatively by using survey data. Secondly, the influence of the time of green light dissipation and the length of crosswalk on the pedestrian crossing position is obtained through the statistical analysis of the walking position of pedestrians (including illegal pedestrians) at different times at multiple intersections. Combined with the investigation data, the Gauss function is used to model the pedestrian crossing position distribution at different times, and the equation of the relationship between the green light dissipation time and the length of the crosswalk and the parameters of the Gauss function model is established. The results of the fitting model show that the model can well reflect the distribution of pedestrian crossing position. Finally, the model is verified, and on the basis of the established model, the effect of pedestrian crossing location distribution on the discrimination of pedestrian and turning vehicle conflict area is analyzed, and an optimization method to reduce conflict area is put forward.
【作者单位】：吉林大学交通学院;
【基金】：国家自然科学基金项目(51278220;51278520)
【分类号】：U491

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