Lyapunov-Based Crowd Stability Analysis for Asymmetric Pedestrian Merging Layout at T-Shaped Street Junction

Zhao, Rongyong; Liu, Qiong; Hu, Qianshan; Dong, Daheng; Li, Cuiling; Ma, Yunlong

doi:10.1109/tits.2020.2995275

Cited by 9 publications

(8 citation statements)

References 15 publications

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“…Numeric simulation is used to find the relationship between density and velocity of the crowd [268]. Similarly, Zhao et al modeled pedestrian merging dynamics at T-shaped street junctions using Aw-Rascle dynamic-flow model [269]. Furthermore, an agentbased model was proposed to analyze pedestrians dynamics.…”

Section: G Crowd Managementmentioning

confidence: 99%

Solving Hajj and Umrah Challenges Using Information and Communication Technology: A Survey

Showail

2022

IEEE Access

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Hajj and Umrah are Muslims' religious pilgrimages to Makkah, Saudi Arabia. Hajj is considered the largest annual gathering in the world. In Islam, each and every able-bodied adult is obligated to go for Hajj at least once in his/her lifetime. Hajj takes place between the 8 th and the 13 th day of Dhul Hijjah, which is the last month of the Islamic year while Umrah, the minor pilgrimage, could be done any time of the year. In Hajj, pilgrims, also known as Hajjis, travel around 15 km and pilgrims have the choice to do it by foot, bus or by train. The Hajj journey starts from Mina, which is considered the largest tent city in the world because it hosts more than 10,000 fire resistant tents, and includes various religious rituals. Around 3 million Muslims from more than 183 countries make Hajj every year and the Kingdom of Saudi Arabia is working on increasing this number. Since 1989, researchers in various ICT domains have tried leveraging their expertise in solving challenges and issues related to Hajj and Umrah. Although several papers have surveyed efforts using technology in Hajj and Umrah research, none of them was comprehensive. In this paper, I classified research efforts that used information and communication technologies for solving Hajj and Umrah challenges over the past 33 years based on their applications in 10 categories. I also identified more than 30 technologies used by researchers all over the world to address Hajj and Umrah issues and group research efforts based on these technologies for ease of access. Furthermore, open challenges were discussed and new technologies that could be used to address these challenges were proposed.

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Section: G Crowd Managementmentioning

confidence: 99%

Solving Hajj and Umrah Challenges Using Information and Communication Technology: A Survey

Showail

2022

IEEE Access

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“…It is connected to Beijing-Shanghai High-speed Railway and Shanghai-Chongqing-Chengdu High-speed Railway in the north, which also connect Shanghai-Kunming High-speed Railway and Shanghai-Hangzhou-Ningbo High-speed Railway in the south. North-south handover, extending in all directions [14].…”

Section: Case Studymentioning

confidence: 99%

Crowd Stability Analysis Based on Pedestrian Abnormal Postures

Zhu

Zhao

Zhang

et al. 2022

J. Phys.: Conf. Ser.

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Abnormal behaviors of pedestrians in crowd gathering public places are important factors affecting the stability of crowd flow. Pedestrian abnormal postures are important manifestation of abnormal behaviors, which often leads to local turbulence, disturbance and density-speed fluctuations. It is urgent to discover the disturbance mechanism of abnormal pedestrian posture on the stability of crowd flow. This study intends to establish machine vision, kinematics, dynamic models and crowd confluence dynamic models for typical abnormal pedestrian postures in public places. We mainly use computer vision related technology based to recognize abnormal postures of pedestrians in videos, constructs a network matrix of key posture nodes, and studys the kinematics characteristics of abnormal posture nodes. Considering the number of pedestrians and the characteristics of the architectural scenes, we design a workflow to select the appropriate macro or micro dynamic model to build the crowd flow model. To validate the propuesd model, case in Shanghai Hongqiao railway station is studied.

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“…The sphere radius is expressed as . , (1) In case that the system is stimulated by an external disturbance. This system state will jump to an unexpected shift, the modulus of distance of current state value minus the initial state value .…”

Section: Crowd Stability Analysis Based On Abnormal-behavior Detectio...mentioning

confidence: 99%

“…Stability analysis of pedestrian crowds is a complex problem the in cross passages of transportation areas. While studying the stability of crowd flow is significant to study and judge the evolution trend of crowd flow status, and timely to prevent crowding and stampede accidents [1]. Stability is the ability that a system can recover to its initial state in a limited range through self-control if an external excitation is over after it deviates from the equilibrium state due to disturbance.…”

Section: Introductionmentioning

confidence: 99%

Experiment study on pedestrian abnormal behavior detection and crowd stability analysis in cross passages

Zhao²,

Ma³

et al. 2022

International Workshop on Automation, Control, and Communication Engineering (IWACCE 2022)

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Experiment design and implement to detect the possible pedestrian abnormal-behaviors in cross passages of public buildings are more significant to prevent possible crowd accidents than ever before. The further support of abnormalbehavior experiments can be helpful to stability analysis of moving pedestrian crowds. To summarize the experiments on pedestrian abnormal behavior detection based on computer vision technology, this study focuses both on the abnormal behaviors of moving pedestrians in public traffic areas and the computer vision technologies. A 3D scene analysis workflow using computer vision for crowd behavior experiment is designed. The Workflow model of abnormal behavior recognition and stability analysis in crowd movement used in experiment design is proposed based on Lyapunov criterion theory. Finally, a survey table of typical abnormal behaviors in public scenes is figured out.

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Lyapunov-Based Crowd Stability Analysis for Asymmetric Pedestrian Merging Layout at T-Shaped Street Junction

Cited by 9 publications

References 15 publications

Solving Hajj and Umrah Challenges Using Information and Communication Technology: A Survey

Solving Hajj and Umrah Challenges Using Information and Communication Technology: A Survey

Crowd Stability Analysis Based on Pedestrian Abnormal Postures

Experiment study on pedestrian abnormal behavior detection and crowd stability analysis in cross passages

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