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An Indoor Pedestrian Simulation Model Incorporating the Visibility  

Kwak, Su-Yeong (서울시립대학교 공간정보공학과)
Nam, Hyun-Woo (서울시립대학교 공간정보공학과)
Jun, Chul-Min (서울시립대학교 공간정보공학과)
Publication Information
Spatial Information Research / v.18, no.5, 2010 , pp. 133-142 More about this Journal
Abstract
Many pedestrian or fire evacuation models have been studied last decades for modeling evacuation behaviors or analysing building structures under emergency situations. However, currently developed models do not consider the differences of visibility of pedestrians by obstacles such as furniture, wall, etc. The visibility of pedestrians is considered one of the important factors that affect the evacuation behavior, leading to making simulation results more realistic. In order to incorporate pedestrian's visibility into evacuation simulation, we should be able to give different walking speeds according to differences of visibility. We improved the existing floor field model based on cellular automata in order to implement the visibility. Using the space syntax theory, we showed how we split the indoor spaces depending on the different visibilities created by different levels of structural depths. Then, we improved the algorithm such that pedestrians have different speeds instead of simultaneous movement to other cells. Also, in order for developing a real time simulation system integrated w ith indoor sensors later, we present a process to build a 3D simulator using a spatial DBMS. The proposed algorithm is tested using a campus building.
Keywords
Pedestrian Simulation; Cellular Automata(CA); 3D Model; Spatial DBMS; Fire Evacuation;
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Times Cited By KSCI : 2  (Citation Analysis)
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