A5045870763- Evacuation and Crowd Dynamics
- Transportation Planning and Optimization
- Traffic and Road Safety
- Fire dynamics and safety research
- Fire effects on ecosystems
- Combustion and Detonation Processes
- Traffic control and management
- Urban Green Space and Health
- Anomaly Detection Techniques and Applications
- Traumatic Brain Injury Research
- Human Mobility and Location-Based Analysis
- Autopsy Techniques and Outcomes
- Vehicle emissions and performance
- Urban Design and Spatial Analysis
- Human-Automation Interaction and Safety
- Facility Location and Emergency Management
- Mobile Crowdsensing and Crowdsourcing
- Decision-Making and Behavioral Economics
- Target Tracking and Data Fusion in Sensor Networks
- Fire Detection and Safety Systems
- Color perception and design
- Impact of Light on Environment and Health
- Crime Patterns and Interventions
- Infrastructure Maintenance and Monitoring
- Robotics and Sensor-Based Localization
City University of Hong Kong
2021-2024
Southwest Jiaotong University
2018-2020
Rutgers, The State University of New Jersey
2015-2016
Shanghai Public Security Bureau
2013
Urban planners and designers use visual preference surveys to gather public opinion on potential designs for developments. Using eye-tracking technology, we administered a survey convenience sample evaluate quantitatively the ways in which individuals process rank images used settings urban planning. We combined both subjective qualitative analysis with quantitative evaluation of data. The largely confirms that various new urbanist components images, namely people, pedestrian features,...
In evacuation models, individual interactions are typically assumed to follow the certain rules which decided using prior knowledge. Our proposed improvement in modelling is inspired by real-life experience that during crowd movements, individuals usually place their visual focus on movements of neighbours, even absence social affiliations. That is, undeclared leader–follower (ULF) structures tend emerge motion. this study, clarify mechanism underlying motion, a force-based model integrated...
Evidence suggests that in the event of a fire accident, certain number building occupants escape through smoke-filled environments. Consequently, evaluating corresponding evacuation performance under such life-threatening conditions is important for advancing safety analyses. This study aimed to develop fire-integrated model consider effects spreading hazards (i.e., radiation, temperature, toxic gas, visibility) on evacuees room scenario. Furthermore, novel quantitative approach was...
The faster-is-slower effect (FIS), which means that crowd at a high enough velocity could significantly increase the evacuation time to escape through an exit, is interesting phenomenon in pedestrian dynamics. Such had been studied widely and has experimentally verified different systems of discrete particles flowing centre exit. To validate this by using people under pressure difficult due ethical issues. A mouse, similar human, kind self-driven soft body creature with competitive behaviour...
Understanding exit choice behaviour is essential for optimising safety management strategies in building evacuations. Previous research focused on contextual attributes, such as spatial information, influencing choice, often using utility models based monotonic functions of attributes. However, during emergencies, evacuees typically make rapid, less calculated decisions. The context can significantly impact the evaluation leading to preference reversals within same set but under varying...
Studying the competitive behavior of a crowd moving through an exit under extreme conditions has become area high interest for scientists in recent years. Conventional wisdom is that flow rate passing dependent on width alone. This study investigated impact position using test mice competition while driven by smoke produced from burning incense sticks. Prior to test, were trained be familiar with location exit. Exits identical dimensions placed at five different locations: center, corner, 2...
Exit choice is essential for pedestrian safety and evacuation efficiency during the context of an emergency. Cumulative prospect theory a widespread realistic decision-making that can transform outcomes probabilities into subjective terms integrate them as parameter cumulative value ( CPV ), which determines decision. The main contribution this paper use to predict exit choice. Furthermore, different rules including Max, exponential(Expo), Ratio (i.e., three variable functions) were...
This study investigated the interplay between exit selection models and local pedestrian movement patterns within floor field frameworks. Specifically, this investigation analysed performance of a multinomial logit choice model, incorporating both expected utility theory cumulative prospect frameworks when coupled with three distinct local-level (FF-Von Neumann, FF-Moore, NSFF). The framework considers deterministic component as linear relationship, while further decision-maker’s risky...
Developing mmWave radar sensors for indoor crowd motion sensing and tracking faces a critical challenge: the scarcity of large-scale, high-quality training data. Traditional human experiments encounter logistical complexities, ethical considerations, safety issues. Replicating precise movements across trials introduces noise inconsistency into To address this, this study proposes novel solution: movable platform equipped with life-size mannequin to generate realistic diverse data points...
Grouping is a common phenomenon that occurs everywhere. The leader-follower relationship inside groups has often been qualitatively characterized in previous models using simple heuristics. However, general method lacking to quantitatively explain leadership an evacuating group. To understand the evolution of single-group dynamics throughout evacuation, we developed extended social force model integrated with group force. A series evacuations from room were simulated. An...