EMPIRICAL RESEARCH ON TECHNOLOGY FOR AUTOMATIC GENERATION OF ROAD ALIGNMENT USING MMS

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  • MMSを用いた道路中心線形の自動生成技術の実証研究

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A large number of highway bridges built during the period of high economic growth are now aging simultaneously, requiring appropriate maintenance. However, the design drawings and completion drawings have been disposed of for some of these highway bridges, or they don't agree with the present conditions. As this makes maintenance difficult, recovery of as-built drawings is required. For this problem, the authors have attempted automatic generation of road alignment drawings by measuring overpasses using MMS. However, the proposed method only verifies the accuracy of the drawing generated using one type of MMS's point cloud data. But, We did not apply the method to others of MMS's point cloud data which have greatly different properties such as the type of laser scanner or the direction of installment. This research verifies the versatility of the proposed method by comparing the result of extracting feature points of the overpass and the accuracy of road alignment generation using two types of MMS's point cloud data having greatly different properties from each other.

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