Simulating bi-directional pedestrian flow in a cellular automaton model considering the body-turning behavior
Simulating bi-directional pedestrian flow in a cellular automaton model considering the body-turning behavior
复制标题
考虑身体转向行为的元胞自动机模型中模拟双向行人流
DOI：
10.1016/j.physa.2017.04.117
复制
发表时间：
2017-09-15
影响因子：
3.3
通讯作者：
Li, Dawei
中科院分区：
文献类型：
--
作者：
Jin, Cheng-Jie;Jiang, Rui;Li, Dawei
在双向行人流的实验中，经常会观察到行人为了减轻或避免与对面行人的冲突而转动身体，由直行变为侧行。当这些冲突消失时，行人恢复并重新笔直行走。在转弯状态下，行人的前进速度不受影响。为了模拟这种身体转向行为，我们使用了一个称为ITP模型的元胞自动机（CA）模型，这是以前提出的。但一个行人占用面积为0.4 m * 0.2 m。引入新的转弯规则后，行人在车道形成过程中变得更加智能和灵活，行人流基本图也得到了改进，给出了两种不同场景下开放边界条件下的仿真结果，并与实验数据进行了比较。结果表明，新模型在各种测试中的性能明显优于原模型，进一步证实了新规则的有效性。我们认为这种方法是一个有用的贡献，行人流建模。(C)2017爱思唯尔B.V.保留所有权利。
In the experiments of bi-directional pedestrian flow, it is often observed that pedestrians turn their bodies and change from walking straight to walking sideways, in order to mitigate or avoid the conflicts with opposite walking ones. When these conflicts disappear, pedestrians restore and walk straight again. In the turning states, the forward velocities of pedestrians are not affected. In order to simulate this body-turning behavior, we use a cellular automaton (CA) model named ITP model, which has been proposed before. But the occupied area of one pedestrian is set as 0.4 m * 0.2 m. After the introduction of new rules of turnings and restorations, the pedestrians become more intelligent and flexible during the lane formation process, and some improvements of the fundamental diagram of pedestrian flow can be found. The simulation results of two different scenarios under open boundary conditions are also presented, and compared with the experimental data. It is shown that the new model performs much better than the original model in various tests, which further confirms the validity of the new rules. We think this approach is one useful contribution to the pedestrian flow modeling. (C) 2017 Elsevier B.V. All rights reserved.