Automatic Generation of High-Accuracy Stair Paths for Straight, Spiral, and Winder Stairs Using IFC-Based Models
The indoor space model is the foundation of most indoor location-based services (LBS). A complete indoor space model includes floor-level paths and non-level paths. The latter includes passages connecting different floors or elevations such as stairs, elevators, escalators, and ramps. Most related s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | ISPRS International Journal of Geo-Information |
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| Online Access: | https://www.mdpi.com/2220-9964/9/4/215 |
| _version_ | 1797571846301810688 |
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| author | Will Y. Lin |
| author_facet | Will Y. Lin |
| author_sort | Will Y. Lin |
| collection | DOAJ |
| description | The indoor space model is the foundation of most indoor location-based services (LBS). A complete indoor space model includes floor-level paths and non-level paths. The latter includes passages connecting different floors or elevations such as stairs, elevators, escalators, and ramps. Most related studies have merely discussed the modeling and generation of floor-level paths, while those considering non-level paths usually simplify the formation and generation of non-level paths, especially stairs, which play an important role in emergency evacuation and response. Although the algorithm proposed by i-GIT approach, which considers both floor-level and non-level paths, can automatically generate paths of straight stairs, it is not applicable to the spiral stairs and winder stairs that are common in town houses and other public buildings. This study proposes a novel approach to generate high-accuracy stair paths that can support straight, spiral, and winder stairs. To implement and verify the proposed algorithm, 54 straight and spiral stairs provided by Autodesk Revit’s official website and three self-built winder stairs are used as test cases. The test results show that the algorithm can successfully produce the stair paths of most test cases (49/50), which comprehensively extends the applicability of the proposed algorithm. |
| first_indexed | 2024-03-10T20:47:25Z |
| format | Article |
| id | doaj.art-f92ab4238fcc498a81bfc506019ade88 |
| institution | Directory Open Access Journal |
| issn | 2220-9964 |
| language | English |
| last_indexed | 2024-03-10T20:47:25Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ISPRS International Journal of Geo-Information |
| spelling | doaj.art-f92ab4238fcc498a81bfc506019ade882023-11-19T20:16:20ZengMDPI AGISPRS International Journal of Geo-Information2220-99642020-03-019421510.3390/ijgi9040215Automatic Generation of High-Accuracy Stair Paths for Straight, Spiral, and Winder Stairs Using IFC-Based ModelsWill Y. Lin0Department of Civil Engineering, Feng Chia University, Taichung 407, TaiwanThe indoor space model is the foundation of most indoor location-based services (LBS). A complete indoor space model includes floor-level paths and non-level paths. The latter includes passages connecting different floors or elevations such as stairs, elevators, escalators, and ramps. Most related studies have merely discussed the modeling and generation of floor-level paths, while those considering non-level paths usually simplify the formation and generation of non-level paths, especially stairs, which play an important role in emergency evacuation and response. Although the algorithm proposed by i-GIT approach, which considers both floor-level and non-level paths, can automatically generate paths of straight stairs, it is not applicable to the spiral stairs and winder stairs that are common in town houses and other public buildings. This study proposes a novel approach to generate high-accuracy stair paths that can support straight, spiral, and winder stairs. To implement and verify the proposed algorithm, 54 straight and spiral stairs provided by Autodesk Revit’s official website and three self-built winder stairs are used as test cases. The test results show that the algorithm can successfully produce the stair paths of most test cases (49/50), which comprehensively extends the applicability of the proposed algorithm.https://www.mdpi.com/2220-9964/9/4/215building information modeling (BIM)indoor topologyspiral stairswinder stairsindustry foundation classes (IFC) |
| spellingShingle | Will Y. Lin Automatic Generation of High-Accuracy Stair Paths for Straight, Spiral, and Winder Stairs Using IFC-Based Models ISPRS International Journal of Geo-Information building information modeling (BIM) indoor topology spiral stairs winder stairs industry foundation classes (IFC) |
| title | Automatic Generation of High-Accuracy Stair Paths for Straight, Spiral, and Winder Stairs Using IFC-Based Models |
| title_full | Automatic Generation of High-Accuracy Stair Paths for Straight, Spiral, and Winder Stairs Using IFC-Based Models |
| title_fullStr | Automatic Generation of High-Accuracy Stair Paths for Straight, Spiral, and Winder Stairs Using IFC-Based Models |
| title_full_unstemmed | Automatic Generation of High-Accuracy Stair Paths for Straight, Spiral, and Winder Stairs Using IFC-Based Models |
| title_short | Automatic Generation of High-Accuracy Stair Paths for Straight, Spiral, and Winder Stairs Using IFC-Based Models |
| title_sort | automatic generation of high accuracy stair paths for straight spiral and winder stairs using ifc based models |
| topic | building information modeling (BIM) indoor topology spiral stairs winder stairs industry foundation classes (IFC) |
| url | https://www.mdpi.com/2220-9964/9/4/215 |
| work_keys_str_mv | AT willylin automaticgenerationofhighaccuracystairpathsforstraightspiralandwinderstairsusingifcbasedmodels |