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題 名 | 使用車載光達進行鋪面平整度偵測可行性研究=The Feasibility Study of Pavement Roughness Detecting by Mobile LiDAR |
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作 者 | 李佩玲; 余騰鐸; 詹智翔; 鄭詠心; | 書刊名 | 鑛冶 |
卷 期 | 58:2=226 2014.06[民103.06] |
頁 次 | 頁97-107 |
分類號 | 442.11 |
關鍵詞 | 車載光達; 航帶平差; 精度提升; 鋪面平整度; Mobile LiDAR; Strip djustment; Precision improvement; Pavement roughness; |
語 文 | 中文(Chinese) |
中文摘要 | 我國現行檢測路面或鋪面平整度的方式主要是以人工方式操作三公尺直規或高低平坦儀進行測量,測量效率僅每小時0.8公里,除相當耗時、費力且效率低落外,亦不符合台灣地狹人稠、道路分佈密集之需求。而車載光達近年來引進台灣,比較起傳統人工測量有著獲取道路資訊快速、道路或鋪面點雲密度極高與較少人為操作誤差等優點,效率可達每小時40公里,可取代傳統人工測量之不便。本研究主要以車載光達測量車的兩個掃描頭分別進行道路或鋪面點雲萃取,並將蒐集到之資料進行前處理以及航帶平差,檢視在不同車速、轉彎與路段性質下對其航帶平差造成的影響。研究結果顯示當車速低於60km/hr,轉彎角度低於40度的情形下,一般道路可將原始車載光達點雲以資料後處理方式降低一半的系統誤差,獲得可供道路或鋪面平整度分析之路面高程值。 |
英文摘要 | At present, the measurement of pavement roughness is by manual, method utilizing the 3m-straight edge or the Hi-Lo detector, and the efficiency is about 0.8 kilometer per hour. To meet the need of the high population density and complex traffic net in Taiwan, the current measurement is time-taken, laborious and inefficient, this study imports mobile LiDAR data to improve the efficiency. It has several advantages such as accessing road or pavement information much more quickly, higher accuracy data and less operating error than the traditional method under the operating rate of 40 kilometers per hour. Therefore, we preprocess and deal strip adjustment with the point cloud data of pavement from two laser scanner in the mobile LiDAR system. To compare the result in different condition of strip adjustment, we examine on distinct speed, turning angles and properties of pavement. It shows that the amount of systematic errors in strip adjustment will be reduced to 50% when the speed is lower than 60km/hr, and the turning angle is less than 40 degree. At the end, we could offer pavement roughness analysis and also elevation change of road. |
本系統中英文摘要資訊取自各篇刊載內容。