| 排水管线点和道路曲率协同下的道路表面模型获取 |
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| 引用本文： | 毛涛敏,范业稳,职爽,张煜辉.排水管线点和道路曲率协同下的道路表面模型获取[J].测绘通报,2021,0(7):144-149. |
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| 作者姓名： | 毛涛敏 范业稳 职爽 张煜辉 |
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| 作者单位： | 武汉大学测绘遥感信息工程国家重点实验室,湖北 武汉430079;武大吉奥信息技术有限公司,湖北 武汉430223 |
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| 基金项目： | 国家重点研发计划（2018YFB2100501） |
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| 摘 要： | 由于数据保密管理及共享机制不完善，城市水务部门用于降雨径流模拟的道路地形数据精度低，模拟精准度不高，进而降低了对城市内涝空间分布准确性的预判和防御。而城市水务部门因业务需要获取的排水管线及管线点数据，不仅反映了排水管线与城市道路的关系，而且管线点数据中的高程信息也反映了道路的起伏态势。据此本文首先基于排水管线点的高程信息，以及协同管线点所在道路的边线曲率所反映的道路横断面特征，通过模型内插获取道路表面特征点；然后根据管线点和内插特征点获取道路表面模型；最后利用武汉市实际道路上的排水管线点和道路边线数据验证该方法的可行性。
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| 关 键 词： | 道路设计曲率 排水管线点 城市道路 高程插值 DEM |
| 收稿时间： | 2020-08-10 |
Road surface model acquisition under synergy of drainage pipeline point and road curvature |
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| MAO Taomin,FAN Yewen,ZHI Shuang,ZHANG Yuhui.Road surface model acquisition under synergy of drainage pipeline point and road curvature[J].Bulletin of Surveying and Mapping,2021,0(7):144-149. |
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| Authors: | MAO Taomin FAN Yewen ZHI Shuang ZHANG Yuhui |
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| Institution: | 1. Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China;2. Geostar Co., Ltd., Wuhan 430223, China |
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| Abstract: | The lack of data confidentiality and sharing mechanism leads to the low accuracy of road terrain data used by urban water utilities for rainfall-runoff simulation, which reduces the prediction and defense of accuracy of urban waterlogging spatial distribution. However, the elevation information of the drainage line point data owned by the city water department can reflect the road fluctuation. In this paper, firstly, a high precision road surface model is obtained based on the data of drainage pipeline points and road design curvature data. In this way, road surface feature points are obtained by interpolation, and then road surface model is obtained by pipeline points and road surface feature points. Finally, The feasibility of the method is verified by the data of drainage pipeline points and road sideline in Wuhan. |
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| Keywords: | road design curvature drainage pipeline points urban roads elevation interpolation DEM |
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