Automatic Generation Of Geographical Information System (GIS) Dataset From Total Station
Keywords:
Engineering survey, land survey, geographical information system, GIS, licensed land surveyorAbstract
A study towards optimizing engineering survey
datasets towards Geographical Information System (GIS) data format is carried out. In this study, one hundred and thirty one (131) questionnaires were gathered from the licensed land surveyors in Malaysia who are the major contributors in carrying out engineering surveying work. It is found that, the
data captured during field survey are in various formats and is not capable for direct usage in GIS environment. If the datasets are to be used in a GIS environment, further processing which involves expertise and manual editing need to be carried out as to comply with the GIS standard MS 1759:2004 data format. In this study, the automated system acquires engineering survey
datasets from raw data generated by a variety of survey
instrument and produce it to GIS ready format. The developed system is assessed qualitatively and quantitatively based on seven hundred and eighty eight (788) surveyed points. It is found that, in the qualitative approached; a good match is obtained in the plotted dataset. As for the quantitative approach, the accuracy achieved is less than 0.015 meters based on plotting points using AutoCAD and ArcGIS software. The
results will be portrayed and tabulated accordingly.
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