A PEDESTRIAN ACCESSIBLE POSITION EXTRACTION METHOD OF EXISTING 3D FILES FOR LARGE BUILDING EVACUATIONS
- 1Faculty of Surveying and Spatial Information, Henan University of Urban Construction, Postcode 467036, Pingdingshan, Henan, China
- 2College of land management, Huazhong Agricultural University, Postcode 430079, Wuhan, Hubei, China
Keywords: 3D; Large Building; Evacuation; Pedestrian Data Extraction; Semi-automatic Solution
Abstract. As the emergency evacuation research in large building area draws more attention than ever before, it is natural to fast acquire the navigation information for this purpose. Current solution for extracting human accessible area from existing data files consumes a significant amount of resource and time. Thus a better solution is required. We propose a semi-automatic plan, which introduces a conceptual model to extract and organize the accessible data of large building. This solution utilizes several spatial algorithms to extract detail traversing information from existing 3D building files and introduce spatial relationships to manage the extracted data.