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Recent GIS applications have already extended analyses from the traditional 2-2.5D environment (x,y,attributes) to 3D space(x,y,z,attributes). Coupled with agent-based modeling (ABM), available 3DGIS data can be used to develop simulation models forimproved analysis of spatial data and spatial processes. One such application is on building evacuation for which ABM is integratedwith 3D indoor spatial data to model human behavior during evacuation events and simulate evacuation scenarios visualized in 3D.The research presented in this paper develops a multi-agent geosimulation model for building evacuation, integrating 3DGIS datasetof the case study building as input in ABM using the GAMA simulation platform. This model is intended to complement andimprove traditional approaches in building evacuation planning and management such as earthquake and fire drills. The initial modeldeveloped includes PEOPLE agents to model the building occupants, and FLOORS, ROOMS, INDOOR_PATHS andEXIT_POINTS agents, which are modeled from the 3DGIS layers. The INDOOR_PATHS and EXIT_POINTS agents influence themovement of PEOPLE agents. Test simulations were performed involving PEOPLE agents placed in rooms of the building based onpotential number of occupants computed based from the floor area of each room. The PEOPLE agents are programmed to find theshortest path along the INDOOR_PATHS towards the EXIT_POINTS instance designated for each room of the building. Thesimulation computes for the total time it takes for all PEOPLE agents to exit the building

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

3DGIS-Based Multi-Agent Geosimulation and Visualization of Building Evacuation Using GAMA Platform