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An Evacuation Route Assignment for Multiple Exits based on Greedy Algorithm
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 Title & Authors
An Evacuation Route Assignment for Multiple Exits based on Greedy Algorithm
Lee, Min Hyuck; Nam, Hyun Woo; Jun, Chul Min;
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Some studies were conducted for the purpose of minimizing total clearance time for rapid evacuation from the indoor spaces when disaster occurs. Most studies took a long time to calculate the optimal evacuation route that derived minimum evacuation time. For this reason, this study proposes an evacuation route assignment algorithm that can shorten the total clearance time in a short operational time. When lots of exits are in the building, this algorithm can shorten the total clearance time by assigning the appropriate pedestrian traffic volume to each exit and balances each exit-load. The graph theory and greedy algorithm were utilized to assign pedestrian traffic volume to each exit in this study. To verify this algorithm, study used a cellular automata-based evacuation simulator and experimented various occupants distribution in a building structure. As a result, the total clearance time is reduced by using this algorithm, compared to the case of evacuating occupants to the exit within shortest distance. And it was confirmed that the operation takes a short time In a large building structure.
Indoor Evacuation;Total Clearance Time;Optimal Evacuation Route;Traffic Assignment;Greedy Algorithm;
 Cited by
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