A pedestrian evacuation model based on ant colony algorithm considering dynamic panic spread

Zhai, Longzhen; Shen, Feng

doi:10.3934/jimo.2022065

Cited by 1 publication

(1 citation statement)

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“…Agents can change certain characteristics of the environment through their activities, and the changes in the environment, in turn, affect the agents. Therefore, agents can use the environment as a medium to achieve communication, competition, stimulation, and optimization with other agents, generating infinite possibilities [56]. In addition, while the environment serves as a communication medium, it also serves as a carrier for recording agent activity paths, which is more conducive to the construction and use of infinite loop models.…”

Section: Model Constructionmentioning

confidence: 99%

Sustainable Application of Automatically Generated Multi-Agent System Model in Urban Renewal

2023

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As cities expand, many old towns face the threat of being renovated or demolished. In recent years, the drawbacks of extensive urban renewal have become increasingly apparent, and the focus of urban development is gradually shifting from efficiency to quality. This study aims to combine urban renewal with emerging technologies to address the dilemma between efficiency and quality in urban renewal. The study found that algorithm models based on graph theory, topology, and shortest path principles neglect the influence of internal states and visual features on pedestrian activity, resulting in lower simulation accuracy. Although incorporating internal states and visual features into the core of the algorithm further improved the simulation accuracy, the model operates in a 3D environment with lower efficiency. To address the problems of insufficient simulation accuracy and low efficiency, this study proposes a dynamic pedestrian activity model based on a multi-agent system and incorporating visual features. The model simulates pedestrian daily activity paths using pheromones and virtual sensors as the core, and it was found that using Visibility Graph Analysis could accurately divide pheromones in the environment, thus obtaining more accurate simulation results. Subsequently, based on the optimized pedestrian model’s agent activity rules and dynamic pheromone theory, a model for automatically generating road paving in urban renewal projects was developed, and the generated results were verified for their rationality through design practice. This technology can effectively promote urban renewal and the preservation of historic neighborhoods, providing technical support for achieving sustainable urban development.

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Section: Model Constructionmentioning

confidence: 99%