Specification of the social force pedestrian model by evolutionary adjustment to video tracking data

Examining effect of architectural adjustment on pedestrian crowd flow at bottleneck

Recent advances in bottleneck studies have highlighted that different architectural adjustments at the exit may reduce the probability of clogging at the exit thereby enhancing the outflow of the individuals. However, those studies are mostly limited to the controlled experiments with non-human organisms or predictions models. Complementary data with human subjects to test the model's limited in literature. This study aims to examine the effect of different geometrical layouts at the exit towards the pedestrian flow via controlled laboratory experiments with human participants. The experimenta…

Empirical characteristics of different types of pedestrian streams

Reliable empirical data and proper understanding of pedestrian dynamics are necessary for fire safety design. However, specifications and data in different handbooks as well as experimental studies differ considerably. In this study, series of experiments under laboratory conditions were carried out to study the characteristics of uni- and bidirectional pedestrian streams in straight corridor. The Voronoi method is used to resolve the fine structure of the resulting velocity-density relations and spatial dependence of the measurements. The result shows differences in the shape of the relation …

瓶颈处行人推挤行为的机器学习与物理混合建模

Hybrid Machine Learning and Physics-based Modelling of Pedestrian Pushing Behaviours at Bottlenecks

本文针对高密度人群中瓶颈处的推挤行为，提出融合推挤倾向异质性、随机森林推挤预测和动态运动策略调整的机器学习与物理混合模型，并通过瓶颈实验验证其能有效再现人群动力学。

Foot force models of crowd dynamics on a wobbly bridge

Modern pedestrian and suspension bridges are designed using industry-standard packages, yet disastrous resonant vibrations are observed, necessitating multi-million dollar repairs. Recent examples include pedestrian induced vibrations during the openings of the Solférino Bridge in Paris in 1999 and the increased bouncing of the Squibb Park Bridge in Brooklyn in 2014. The most prominent example of an unstable lively bridge is the London Millennium Bridge which started wobbling as a result of pedestrian-bridge interactions. Pedestrian phase-locking due to footstep phase adjustment, is suspected …

New insights into pedestrian flow through bottlenecks

Capacity estimation is an important tool for the design and dimensioning of pedestrian facilities. The literature contains different procedures and specifications which show considerable differences with respect to the estimated flow values. Moreover do new experimental data indicate a stepwise growing of the capacity with the width and thus challenge the validity of the specific flow concept. To resolve these differences we have studied experimentally the unidirectional pedestrian flow through bottlenecks under laboratory conditions. The time development of quantities like individual velociti…

城市交叉口行人与非机动车混合交通动力学研究：观测实验与建模

Investigating mixed traffic dynamics of pedestrians and non-motorized vehicles at urban intersections: Observation experiments and modelling

针对城市交叉口行人与非机动车混行的安全挑战，本研究提出融合TTC指标与切向力的TASFM模型，经深圳真实场景验证精度优异，可复现交通行为模式并为城市交通规划提供支撑。