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However, unorganized point clouds and complex road scenarios would reduce the accuracy of geometric information extraction and digital modeling. There is a standardization need for information extraction and 3D model construction that integrates point cloud processing and digital modeling. This paper develops a framework from semantic segmentation to geometric information extraction and digital modeling based on LiDAR data. A semantic segmentation network is improved for the purpose of dividing the road surface and infrastructure. The road boundary and centerline are extracted by the alpha-shape and Voronoi diagram methods based on the semantic segmentation results. The road geometric information is obtained by a coordinate transformation matrix and the least square method. Subsequently, adaptive road components are constructed using Revit software. Thereafter, the road route, road entity model, and various infrastructure components are generated by the extracted geometric information through Dynamo and Revit software. Finally, a detailed digital model of the road scenario is developed. The Toronto-3D and Semantic3D datasets are utilized for analysis through training and testing. The overall accuracy (OA) of the proposed net for the two datasets is 95.3 and 95.0%, whereas the IoU of segmented road surfaces is 95.7 and 97.9%. This indicates that the proposed net could accomplish superior performance for semantic segmentation of point clouds. The mean absolute errors between the extracted and manually measured geometric information are marginal. This demonstrates the effectiveness and accuracy of the proposed extraction methods. Thus, the proposed framework could provide a reference for accurate extraction and modeling from LiDAR data.<\/jats:p>","DOI":"10.3390\/rs15030576","type":"journal-article","created":{"date-parts":[[2023,1,19]],"date-time":"2023-01-19T05:06:14Z","timestamp":1674104774000},"page":"576","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Framework for Geometric Information Extraction and Digital Modeling from LiDAR Data of Road Scenarios"],"prefix":"10.3390","volume":"15","author":[{"given":"Yuchen","family":"Wang","sequence":"first","affiliation":[{"name":"School of Transportation, Southeast University, #2 Southeast University Road, Nanjing 211189, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weicheng","family":"Wang","sequence":"additional","affiliation":[{"name":"China Design Group Co., Ltd., Nanjing 210014, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4494-4340","authenticated-orcid":false,"given":"Jinzhou","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Transportation, Southeast University, #2 Southeast University Road, Nanjing 211189, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tianheng","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Transportation, Southeast University, #2 Southeast University Road, Nanjing 211189, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0868-8378","authenticated-orcid":false,"given":"Shuyi","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Transportation, Southeast University, #2 Southeast University Road, Nanjing 211189, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bin","family":"Yu","sequence":"additional","affiliation":[{"name":"School of Transportation, Southeast University, #2 Southeast University Road, Nanjing 211189, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaochun","family":"Qin","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Beijing Jiaotong University, No.3 Shangyuancun, Beijing 100044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"104081","DOI":"10.1016\/j.autcon.2021.104081","article-title":"Building Digital Twins of Existing Highways Using Map Data Based on Engineering Expertise","volume":"134","author":"Jiang","year":"2022","journal-title":"Autom. 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