["Evacuation simulations in multi-storey building using 3D GIS and ABM require further study. Existing models lack comprehensive input on various building attributes. This research aims to develop a model for simulating earthquake evacuations in multi-storey buildings. The building and its occupants (agents) are modeled in detail, with building dimensions and designs obtained through measurements and field surveys. A field observation was conducted to determine agent's distribution. Agents placed in the building model are given certain behaviors once evacuation begins. The research focuses on a multi-storey building at Universitas Gadjah Mada (UGM). The model can assess the effectiveness of current evacuation facilities. Computer simulation results show that 266 agents require 140.8 seconds to evacuate, with no bottleneck observed at any location. A guest agent, assumed to lack knowledge of the building’s emergency information, is observed to exit last. In contrast, the fastest evacuation is achieved by agents familiar with the building, represented by a group of lecturers/staff. Model validation, through comparison with a drill simulation, shows a time difference of 0.45 seconds. Findings indicate that, under current scenarios, the building’s evacuation facilities have adequate capacity.", "Evacuation simulations in multi-storey building by utilizing 3D GIS and ABM still needs to be studied further. Various attributes that exist in a building have not become a complete input on existing models. The research aims to create a model which can be used for evacuation simulation of earthquakes in multi-storey buildings. A multi-storey building is modeled in detail along with the individuals inside called agents. Measurement of building dimensions and field survey is performed to obtain the building design. Field observation is carried out to find out the agent's distribution. Agents placed in a building model are given certain behaviors when the evacuation process begins. The object of the research is a multi-storey building at UGM. The model produced in this study can be used to test the effectiveness of existing evacuation facilities. The evacuation time needed by 266 agents is 140.8 seconds which is calculated from computer simulation. The model does not indicate a bottleneck in a particular location. A guest agent who is assumed to have no knowledge of emergency information in the building, is observed to be able to leave the last. While the fastest agent is experienced by the one who is very familiar with the building, represented by a group of lecturers/staff. Model validation through comparison towards drill simulation shows a time difference of 0,45 seconds. Research shows that with existing scenarios, the building has sufficient capacity in terms of the evacuation facility designs."]