当前位置: X-MOL 学术Safety Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A generalized trajectories-based evaluation approach for pedestrian evacuation models
Safety Science ( IF 4.7 ) Pub Date : 2021-11-18 , DOI: 10.1016/j.ssci.2021.105574
Yao Xiao 1 , Jun Xu 1 , Mohcine Chraibi 2 , Jun Zhang 3 , Chao Gou 1
Affiliation  

The fundamental diagram and self-organized phenomena in crowds are widely used to test the applicability of evacuation models. These benchmarks are good indicators for the validity of a model, whereas they are insufficient descriptors for the realistic microscopic behaviors of pedestrians. In recent years, the rapid increase of the trajectory datasets which benefits from the development of recognition technologies open the door to new possibilities for an extensive quantitative validation of the models. In this work, a trajectories-based analysis approach which contains types of indexes is proposed. The indexes are a mix of macroscopic type (fundamental diagram index, speed choice index, and direction choice index) and microscopic type (trajectories pattern index), distribution type (route length distribution index, travel time distribution index) and time-series type (starting position distance time-series index, destination position distance time-series index. Moreover, the Kolmogorov-Smirnov (K-S) test as well as the dynamic time warping (DTW) method are introduced to quantify the similarities of results on different types of indexes. In brief, by comparing experimental and simulation trajectories, we can measure a set of performance scores in different perspectives. Here, the Social Force Model (SFM) and Heuristics Model (HM) are respectively introduced and evaluated. According to the proposed evaluation approach, we show that the HM performs better than the SFM. Our analysis approach is model agnostic and is defined in a general way, such that it can be applied for trajectory sets from different experiment settings. This work can help to improve the accuracy of simulation models, and the pedestrian safety in crowd activities and autonomous vehicle navigation will be benefited.



中文翻译:

一种基于广义轨迹的行人疏散模型评估方法

人群中的基本图和自组织现象被广泛用于测试疏散模型的适用性。这些基准是模型有效性的良好指标,但它们不足以描述行人的真实微观行为。近年来,受益于识别技术发展的轨迹数据集的快速增加为模型的广泛定量验证打开了新的可能性。在这项工作中,提出了一种包含索引类型的基于轨迹的分析方法。指标是宏观型(基本图指数、速度选择指数、方向选择指数)和微观型(轨迹模式指数)、分布型(路线长度分布指数、

更新日期:2021-11-27
down
wechat
bug