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http://dx.doi.org/10.11108/kagis.2011.14.3.078

The Utilization of DEM Made by Digital Map in Height Evaluation of Buildings in a Flying Safety Area  

Park, Jong-Chul (Geographic Information Science Research Institute, Kongju Nat'l Univ.)
Kim, Man-Kyu (Department of Geography, Kongju Nat'l Univ.)
Jung, Woong-Sun (Department of Military Science Intelligence, Kongju Nat'l Univ.)
Han, Gyu-Cheol (Department of Military Science Intelligence, Kongju Nat'l Univ.)
Ryu, Young-Ki (Department of Military Science Intelligence, Kongju Nat'l Univ.)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.14, no.3, 2011 , pp. 78-95 More about this Journal
Abstract
This study has developed various DEMs with different spatial resolutions using many different interpolation methods with the aid of a 1:5,000 digital map. In addition, this study has evaluated the vertical accuracy of various DEMs constructed by check point data obtained from the network RTK GPS survey. The obtained results suggest that a DEM developed from the TIN-based Terrain method performs well in evaluating height restriction of buildings in a flying safety area considering general RMSE values, land-type RMSE values and profile evaluation results, etc. And, it has been found that three meters is the right spatial resolution for a DEM in evaluating height restriction of buildings in a flying safety area. Meanwhile, elevation values obtained by the DEM are not point estimation values but interval estimation values. This can be used to check whether the height of buildings in the vicinity of an airfield violates height limitation values of the area. To check whether the height of buildings measured in interval estimation values violates height limitation values of the area, this study has adopted three steps: 1) high probability of violation, 2) low probability of violation, 3) inconclusiveness about the violation. The obtained results will provide an important basis for developing a GIS related to the evaluation of height restriction of buildings in the vicinity of an airfield. Furthermore, although results are limited to the study area, the vertical accuracy values of the DEM constructed from a two-dimensional digital map may provide useful information to researchers who try to use DEMs.
Keywords
Flying Safety Area; DEM; Accuracy; Height Restriction of Buildings;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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