整合地籍圖、航測地形圖與都市計畫圖套疊後精度分析之研究－以臺中市為例

Abstract

摘 要:本研究將地籍圖透過數學模式轉換，並與數值航測地形圖坐標在同一系統下來進行圖層套疊，藉由整合三圖套疊合一，分析套疊後之精度及誤差傳播情形，進而提供品質良好之最佳圖資來提供決策者做為決策、規劃、評估分析之用，也能提供地政單位土地複丈時地形地貌之參考及土地座落位於何處供社會大眾使用，進而促進政府單位行政效率，提升為民服務。 實驗結果發現：（1）應用地震誘發之地層錯動修正模式及六參數坐標轉換將地籍圖TWD67轉成TWD97系統方法來進行地籍圖坐標轉換，就整體而言，本研究區內各地段轉換前後之面積總和比較分析，誤差比皆小於0.012﹪，轉換前後之邊長及面積差異量、精度分析並且至現場實測檢測比較，其誤差值皆符合地籍測量實施規則要求之精度在市地界址點誤差應小於6公分的規範。（2）藉由誤差傳播定律，分析出套疊後之精度，可提供圖資管理單位及早因應製圖時不符之處，避免因公權力使民眾衍生糾紛。 最後藉由向量式地籍圖資料套疊網格式資料為背景可以充分表現出土地座落效果。

ABSTRACT:It is a trend to integrate cadastral map, photogrammetric topographic map and urban planning map. These maps are based on different coordinates system. Therefore, they are difficult for current usage. This study aimed at investigating the datum transformation of the three kinds map and trying to integrate them. This study will discuss the precision and error propagation of integrating cadastral map, photogrammetric topographic map, and urban planning map. Consequently, to evaluate the positioning precision of the control point, side length of manor and measure of area, the precision are accorded to the specification of cadastral survey. The results obtain from this study show the difference of acreage is smaller than 0.012% between before transformed and after transformed. All of results achieved the criterion of cadastral survey. So the procedure of this study could be the standard operation procedure of the integration of these three kinds of map.