• Title/Summary/Keyword: Cadastral Surveying

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Downtown Area Cadastral Boundary Surveying Using Real-time GPS/GLONASS Combination

  • Seo, Dong-Ju;Kim, Sung-Hwan;Lee, Jong-Chool
    • Korean Journal of Geomatics
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    • v.3 no.1
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    • pp.73-79
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    • 2003
  • To manage national territory and cadastral data efficiently, accuracy and cost-efficiency in cadastral boundary surveying is inevitable. The efficient management of cadastral data is a very important element in national land management. Survey techniques are being introduced. Recently, improvements in survey techniques have been made with the development of satellite surveying, Allowing accurate and fast surveys. If we can calculate the output accurately in real-time in survey fields, it will open a new method in cadastral detail surveying. According to the classification on Law of cadastral surveying, Cadastral surveying can be divided into cadastral control point surveying and cadastral detail surveying. The control point survey can be divided into cadastral triangulation surveying and cadastral traverse surveying. The detailed survey is usually perform by plane surveying. Among these, cadastral detail surveying will be reviewed in this study. In this study, the combination of the satellites, such as US managed GPS and Russian managed GLONASS was used. In the satellite survey in downtown, data interruption symptoms arose(according to the mask angle of the satellite). Therefore; we combined the satellites to get date more accurately. A block of Haewoondae New City in Busan, Korea, which has Numerical Cadastral Law was selected as the sample area for this study. Block II and III are surrounded by high rise apartments. One side of Block I and IV is level ground and the other side is full of high rise apartments. Especially, Block II is surrounded by high rise apartment houses with 20 meters width. In the results of the study Block II did not satisfy the allowable precision, while Block I, II and IV satisfied the allowable precision of the enforcement regulations of Cadastral Law. Therefore, it is judged that the traditionally used Total Station method should be used for supplementary survey on Block II, in stead.

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Accuracy Evaluation of Cadastral Surveying using Data of Parcel Based Land Information System (필지중심토지정보시스템 자료를 이용한 지적측량 정확도 평가)

  • Ju, Jeong-Jun;Kim, Seong-Sam;Yoo, Hwan-Hee
    • Journal of Korean Society for Geospatial Information Science
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    • v.12 no.3 s.30
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    • pp.23-31
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    • 2004
  • Cadastral surveying is related to demarcating legal boundaries and areas for the sake of registering a properly on cadastral records or restoring registered boundaries on the ground. It is composed of control surveying (cadastral triangulation and supplementary control surveying) and detail surveying. Detail surveying is classified into plane table surveying by graphical cadastral map and numerical surveying by boundary point coordinates. In this study we compared the accuracy of plane table surveying with numerical surveying using Parcel Based Land Information System(PBLIS) data constructed by the cadastral map digitalization business. In conclusion the result by numerical surveying was analyzed as more accurate than the result of plane table surveying, as Root Mean Square Errors(RMSE) of graphical cadastral surveying is 0.766m and that of numerical cadastral surveying using Total Station(T/S) is 0.683m. Therefore, PBLIS data is expected to be used for surveying legal boundaries and areas in the near future.

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Prevention of Outflow of Cadastral Technique and Protection Plan Subsequent to Environmental Change of Cadastral Surveying (지적측량 환경 변화에 따른 지적기술의 유출방지 및 보호방안)

  • Lee, Jae-Hyuk;Hong, Sung-Eon;Lee, Hyun-Joon
    • Spatial Information Research
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    • v.16 no.1
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    • pp.33-50
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    • 2008
  • At present, the cadastral field, with the conversion into digital cadastral map management system, not the existing cadastral map management system, has gone through a lot of changes, such as the market opening of cadastral surveying and overseas launching of a cadastral field. Such an environmental change has brought on a lot of advantages, such as improvement in accuracy of surveying, efficient management system, and reinforcement of competitive power in cadastral surveying. However, the conversion into the advanced cadastral management system serves to relatively heightening the possibility of outflow of cadastral information and its technology in comparison with in the past. This research, with the aim to cope with indiscriminate outflow of cadastral technology, is aimed at suggesting the plan for the prevention of outflow of cadastral technique and its protection after examining and considering the contents of environmental changes in the currently going cadastral field.

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A Study on the Case Analysis by Type of the Cadastral Surveying Screening (지적측량 적부심사 유형별 사례분석에 관한 연구)

  • OH, Yi-Kyun
    • Journal of Cadastre & Land InformatiX
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    • v.52 no.2
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    • pp.137-152
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    • 2022
  • The cadastral boundary points which cadastral surveyor presented on the ground by conducting cadastral surveying represents the limits of land ownership and give binding force and determination power. However the land disputes have increased these days mainly due to cadastral registration errors, surveying errors and land owners recognition error. In these cases, the cadastral survey interests try to find solution by either a administrative procedures by appealing civil complaint or border determination litigation through court. The neighboring residents and related organization have difficulties in resolving the civil complaints. In this study cadastral surveying and cadastral boundary determination process has been reviewed and the results of cadastral surveying screening by Central Cadastre Committee from 2016 to 2021 have been classified. The outcomes of this research will be used for cadastral surveying and contribute for reducing land disputes and improve reliablity of cadastral surveying.

Improvement Plans for Working Area of Cadastral Surveyors (지적측량수행자의 업무영역 개선방안에 관한 연구)

  • Hong, Sung-Eon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.1
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    • pp.237-242
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    • 2014
  • This study is to analyze open work status and conditions of cadastral surveyors and suggest improvement plans for working area of cadastral surveyors. The results are as below. Based on the analysis, this study suggests expansion of confirmation surveying for cadastral target range, ease of confirmation surveying standard for cadastral, and broader participation opportunities for cadastral surveyors in the cadastral re-survey project as improvement plans. If the Ministry of Land, Infrastructure, and Transport seeks legislative and policy improvement that can create more rational and ideal cadastral surveying conditions based on various reviews on improvement plans for working area of cadastral surveyors in this study will promote symbiotic development among cadastral surveyors.

Accuracy Analysis of Network RTK Surveying for Cadastral Re-survey Project (지적재조사사업에서 Network RTK 측량의 적용 정확도 분석)

  • Park, Chun Soo;Park, Ki Heon;Hong, Sung Eon
    • Journal of Korean Society for Geospatial Information Science
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    • v.21 no.4
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    • pp.117-123
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    • 2013
  • The purpose of this research is to suggest the reasonable method of Network RTK surveying in future cadastral re-survey project through the accuracy analysis about Network RTK surveying achievement and the conventional TS-based confirmation surveying. To achieve it, we selected the experiment places and succeeded in achieving the result by Network RTK surveying about total of 307 parcel boundary point. We compared it with the result of confirmation surveying for cadastral, and it was shown that total connection errors of RMSE was ${\pm}0.1028m$ and total 48 places exceeded in the cadastral re-survey allowable error tolerance. The research suggested the practical alternatives in cadastral re-survey project after the comprehensive evaluation of those analysis results. Therefore, the author suggested development and adoptation of integrated electronic plane table surveying method. Moreover, we suggested unifying the first parcel boundary point method into the total station surveying and adopt the Network RTK surveying on the cadastral surveying inspection.

A Study on Proposal for Systematic Development of the Inspection of Cadastral Surveying Value -the Case of Sungnam City- (지적측량 성과검사의 제도적 재선방안에 대한 연구 -성남시를 중심으로-)

  • 김욱남;박희주
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.16 no.1
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    • pp.133-138
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    • 1998
  • Korea's inspection of cadastral surveying value is carrying out based on cadastral law, and has to enter in cadaster after government office's final inspection of cadastral surveying of land alteration according to the request of land owner or the state. Therefore, government office has to inspect the value of surveying before arranging cadastral book, and has to confirm whether the surveying error is whithin the range of allowing one. If it is, a govenment office has to arrange the cadastral book according to resulting Value. This study investigates and analizes annual land alteration of Sungnam city and analizes the situation of government office's cadastral surving value, the number of inspectors, and equipments. As a result, this study shows the problem and provides effective basic materials, increases the efficacy of the state's cadastral surveying inspection, and minimiges land dispute.

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Comparision of Digital Map vs Cadastral State Surveying of Chilli Reservoir (칠리제의 수치지도 자료와 지적현황측량 결과 비교)

  • 김욱남;박희주
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2004.11a
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    • pp.545-550
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    • 2004
  • Chilli reservoir is agricultural purpose reservoir made in 1945. But its bottom is covered with thick accumulated sewage layer, so its original function has failed. This study conducted cadastral state surveying to survey the state of this area prior to dredging the accumulated bottom sewage layer of Chill reservoir. Prior to cadastral state surveying we analyzed the digital map and aerial photographs of study area. In cadastral state surveying, traversed network was constructed on the road and banks near the reservoir, a surveyed map was made by surveying with Auto-reduction EDM Alidade. From the comparison results of the cadastral map and digital map, we found small chilli reservoir is expressed as rice field on the digital map, and it should be corrected. And when we make digital map and topographic map, the errors will be diminished if we use the cadastral map at the same time.

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A Study on the Performance Standard of Surveying Equipments for Cadastral Re-survey Project (지적재조사사업 측량 장비의 성능 기준 연구)

  • Hong, Sung-Eon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.8
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    • pp.3470-3476
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    • 2012
  • In this study, for cadastral surveying specified in current relevant legislation, regulations of allowable error tolerance and applicable equipments, accuracy in the relevant regulations and applicable regulations were comprehensively studied. Based on them, the objective was to develop performance standard for cadastral surveying equipments satisfying allowable error tolerance of cadastral surveying specified in the special law for cadastral re-survey. The study results are as follows. By comparing current legislation for performance and allowable error tolerance of applicable equipments with provisions of the special law for cadastral re-survey, analyzed were where performance of equipments needs to be improved on cadastral re-survey project. Based on them, as primary control point surveying and detail surveying were separated, performance standard of equipments were presented. Results of this study may be utilized as basic materials for supply and demand program of surveying equipments on establishment of the basic plan for cadastral re-survey project.

Study on Establishment of Cadastral Surveying Fee System Suitable for Digital Cadastral Management Environment (디지털 지적관리 환경에 적합한 지적측량수수료 체계 확립 연구)

  • Hong, Sung-Eon
    • Journal of Digital Convergence
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    • v.13 no.12
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    • pp.23-30
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    • 2015
  • The current cadastral business is being operated by conversion to a digital cadastral management system through computerized registers (land register and forest land register) and maps (cadastral map and forest cadastral map). Digital surveying methods, such as GPS surveying and electronic plane table surveying, are also used for cadastral surveying. At present, fees for cadastral surveying are calculated based on a standard pursuant to the Construction Standard Production Unit System and an announcement by the Ministry of Land, Infrastructure, and Transportation. In many cases, however, the cadastral surveying fee system announced at present fail to apply the digitalized environment depending on the item. This study sought to analyze the cadastral surveying fee system that requires improvement in the rapidly changing digital cadastral management environment, and to prepare a basis to establish a cadastral surveying fee system suitable to the digital environment by suggesting an improvement method for such system. As a result of the study, the following suggestions were made: a method of changing to terms suitable to the digital environment based on the current status analysis; preparation of a new estimation system regarding new estimation items; and re-survey of an estimation system of cadastral confirmation survey and preparation of an estimation system.