Study about the Applicable Plan of GIS on Range of Magnetic Field Emitted from 60 Hz Powerline

60Hz 고압 송전선로의 자기장 발생범위에 대한 GIS 적용 방안에 대한 연구

  • Hong, Seung Cheol (Department of Occupational Health & Safety Engineering, College of Biomedical Science & Engineering, Inje University) ;
  • Choi, Seong Ho (Institute of Environmental and Industrial Medicine, College of Medicine, Hanyang University) ;
  • Kim, Yoon Shin (Institute of Environmental and Industrial Medicine, College of Medicine, Hanyang University) ;
  • Park, Jae Young (Department of Interdisciplinary Program in Geographic Information, Kyungpook National University)
  • 홍승철 (인제대학교 보건안전공학과) ;
  • 최성호 (한양대학교 환경 및 산업의학연구소) ;
  • 김윤신 (한양대학교 환경 및 산업의학연구소) ;
  • 박재영 (경북대학교 지리정보학과)
  • Received : 2006.06.19
  • Accepted : 2006.07.31
  • Published : 2006.08.30

Abstract

In this study, we investigated the applicable plan of GIS on the environmental impact assessment of 60 Hz Powerline. So we assessed distance data based on calculations by use of 2D and 3D Geographical information systems(GIS) and distance data based on measurements on 1: 5000 maps accord with on site distance measurements to use input data for calculating magnetic field. One hundred eight of the on site measured addresses were selected from residences. The data were achieved by measuring the distance between residence and power line on maps with scales of 1: 5000. The digital map was obtained from National Geographic Information Institute with scales of 1: 5000, and we made 2D and 3D map. Correlation analyses were performed for statistical analyses. For the 3D GIS versus on site comparison of different exposure categories, 70 of 108 measurements were assigned to the correct category. Similarly for 2D GIS versus on site comparison, 71 of 108 were correctly categorized. When comparing map measurement with on site measurement, 62 of 108 were correctly categorized. When the correlation analysis was performed, best correlation was found between 3D GIS and on site measurements with r = 0.84947 (p<0.0001). The correlation between map and on site measurement yielded an r of 0.76517 (p<0.0001). Since the GIS measurements and map measurement were made from the center point in the building and the on site measurements had to be made from the closest wall on the building, this might introduce and additional error in urban areas. The difference between 2D and 3D calculations were resulted from the height of buildings.

Acknowledgement

Supported by : 환경부

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