A Hybrid Model for Simulating Crowd Evacuation

Abstract

Macroscopic and microscopic models are typical approaches for simulating crowd behaviour and movement to simulate crowd and pedes-trian movement, respectively. However, the two models are unlikely to address the issues beyond their modelling targets (i.e., pedestrian movement for mi-croscopic models and crowd movement for macroscopic models). In order to solve such problem, we propose a hybrid model integrating macroscopic model into microscopic model, which is capable of taking into account issues both from crowd movement tendency and individual diversity to simulate crowd evacuation. In each simulation time step, the macroscopic model is executed first and generates a course-grain simulation result depicting the crowd move-ment, which directs microscopic model for goal selection and path planning to generate a fine-grain simulation result. In the mean time, different level-of-detail simulation results can also be obtained due to the proposed model containing two complete models. A synchronization mechanism is proposed to convey simulation results from one model to the other one. The simulation results via case study indicate the proposed model can simulate the crowd and agent behaviour in dynamic environments, and the simulation cost is proved to be efficient.

Continuum Theory for Pedestrian Traffic Flow: Local Route Choice Modelling and its Implications

“…Several studies have used hydrodynamic principles as the foundation for their simulation models (a.o. Treuille and Popovic (2006), Xiong et al (2013), Jiang (2014)). In recent years, also macroscopic continuum models based on other principles have been proposed.…”

Continuum theory for pedestrian traffic flow: Local route choice modelling and its implications

“…Several studies have used hydrodynamic principles as the foundation for their simulation models (a.o. Treuille et al, 2006;Xiong et al, 2013;Jiang, 2014). In recent years, also macroscopic continuum models based on other principles have been proposed.…”

A Comprehensive Study on Pedestrians’ Evacuation

“…On the other hand, determining the velocity and moving direction was due to the microscopic model. According to the outputs of the simulation appeared there is a good performance to show the features of crowd movement and human [109].…”