• Title/Summary/Keyword: land evaluation

Search Result 1,282, Processing Time 0.023 seconds

A Study of the Improvement on Method and Detailed Criteria for Education Environment Evaluation -Focused on School Location- (교육환경평가제도의 세부적 평가기준 개선방안에 관한 연구 - 교육시설의 입지적 측면을 중심으로 -)

  • Kim, Hyung-Don
    • The Journal of Sustainable Design and Educational Environment Research
    • /
    • v.11 no.2
    • /
    • pp.38-50
    • /
    • 2012
  • The purpose of this study was to Improvement proposal on Item and Detailed Method for Education Environment Evaluation, Focused on School Location. This Study are as follows. 1. Research on Location Theory and relation Law 2. Improving research by School Experts(Health&construction& administration) 3. Present a Detailed quantitative assessment criteria 4. Pilot Survey on Education Environment Evaluation So, this result will be used in decision-making-process of land use planning, public land development construction, urban design and city policy.

Development of Forest Ecosystem Evaluation Considering Biotope Type (비오톱 유형을 고려한 산림지역 생태계 평가기법 개발)

  • Kim, Jeong Ho
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.10 no.3
    • /
    • pp.38-51
    • /
    • 2007
  • The purpose of this study is to analyze of biotope types and to develop assessment for forest ecosystem evaluation method. Vegetation types divided into 27 types. Considering the vegetation types, vegetation structures, DBH, potentials, and disturbance, it was decided to apply 58 biotope types and survey site's biotopes were divided into 24 biotope types. Assessment indicators were naturaliness, diversity, rarity, stability, potential, and disturbance. The areas given the first grade in ecological value included 9.2% of the site's total land. Areas with the second grade accounted for 43.0% of the total land. Areas with the third grade made up 47.8% of the site and mostly they were areas with dominance of fired area and artificial forest. To plan to build naturally-development for Site, there should be plans to conserve areas with the first grades. For the areas with the second, and third grades, plans for ecological land use based on conservation and restoration in terms of securing biodiversity are needed.

Analysis of Safety Evaluation Guidelines for Practical Maintenance of Existing Concrete Structures (노후 콘크리트 구조물의 실용적 유지관리를 위한 콘크리트 구조물 안전진단 지침 분석)

  • Lee, Joo-Hyung;Cho, Jae-Yeol
    • Land and Housing Review
    • /
    • v.11 no.3
    • /
    • pp.83-92
    • /
    • 2020
  • In South Korea, problems caused by material deterioration of time-worn concrete structures have been increased recently. Because severe material deterioration could damage the structure's safety, it's important to evaluate the old structure's condition and structural capacity regularly to keep its proper performance. The safety evaluation of concrete structures has been initiated and performed periodically since 1995 according to a guideline in accordance with a law in Korea. The guideline prescribes the evaluation types, intervals and methods of the target structure. A lot of cost and labor have been invested every year to carry out the regular safety evaluation. However, it's not clear that the current manual could inspect the old structure's condition and assess the structural capacity precisely. Thus, the verification study initiated to figure out the Korean safety evaluation manual's practicalness. First, the Korean manual was analyzed and then compared with that of other countries for concrete bridges which are representative concrete structure. After that, the previously written evaluation reports were collected and analyzed to find out how the safety evaluation has been carried out. Based on the study results, the parts requiring verification of the manual were drawn. A research program is in progress in order to verify the parts by performing tests with actual structural members from decommissioned concrete bridges.

Analysis on Alpine Agricultural Areas in Gangwon Province (강원도 고랭지 농업지대의 유형분석)

  • Kim, Ki-Sung;Choi, Ye-Hwan
    • Proceedings of the Korean Society of Agricultural Engineers Conference
    • /
    • 2003.10a
    • /
    • pp.103-106
    • /
    • 2003
  • A research was made to describe the characteristics of alpine agricultural areas in Hongcheon, Pyeongchang and Jeongsun municipalities that comprise large alpine belts. Analysis of current land-use status, pattern classification of agricultural areas, and land-use suitability evaluation were made to describe the characteristics using GIS.

  • PDF

Development of Landscape Resource Assesment Systems of Jeju Island's Stonewall Fencing Farming Land for the Introduction of Direct Payment System of the Landscape Preservation and its Application (제주밭담의 경관보전직불제 도입을 위한 경관자원(제주밭담) 평가시스템 구축과 적용)

  • Ko, Seong-Bo
    • Journal of Korean Society of Rural Planning
    • /
    • v.13 no.3
    • /
    • pp.123-133
    • /
    • 2007
  • The purpose of this study is to develop the landscape resource assessment system(LRAS) to help evaluate the value of landscape resources(Jeju Island's Stonewall fencing farming land) for the introduction of direct payment system of the landscape preservation objectively and to applicate the model in the fields. Delphi survey on Jeju's stonewall experts shows that the order of priority among value evaluation elements on Jeju's stonewall is its harmony with surroundings(34%), the preservation of its original state(34%) and its density and scale(32%). Evaluation system development of landscape resources(Jeju's stonewall fencing filming land) and field observation survey utilizing it consists of the following five steps. Step 1 includes the first Delphi survey on Jeju's stonewall experts to decide its value evaluation elements and their priority. Step 2 is the second Delphi survey on Jeju's stonewall experts to grade pictures of landscape resources(Jeju's stonewall fencing farming land) on the basis of expert-proposed value evaluation standards. Step 3 consists of analysis work using the result of Delphi survey on experts. Step 4 is to select five grade standard pictures according to each of three grading elements of A, B, C belonging to each of the three standards. Then, it is necessary to make panels including five A-grade pictures, five B-grade pictures and five C-grade pictures according to each of the three elements of density, harmony, and original state preservation. Step 5 consists of field observation survey. According to the result of few experts' value evaluation of stonewall fencing farming land with the aid of NRAS developed in this research, the area of Pyeongdae-ri is ranked first, and then the area of Bukcheon-ri, Chocheon-up, the area of Gwakgi-ri, Ewol-up, the area of Shinum-ri, Ewol-up and the area of Yongsu-ri, hankyung-Myun are ranked in the order named. When those areas are graded, A Grade Areas includes the areas of Pyeongdae-ri, the area of Bukcheon-ri, the area of Gwakgi-ri, B Grade Areas consist of the area of Shinum-ri and the area of Yongsu-ri, and the areas of Onpyeong, wimi and youngrak belong to C Grade Area.

Improving the Grading Indices for Land Suitability Assessment (토지적성평가 지표의 개선방안 연구 - 평가체계II를 중심으로 -)

  • Kim, In-Hyun;Oh, Kyu-Shik;Yang, Hee-Bum
    • Spatial Information Research
    • /
    • v.17 no.2
    • /
    • pp.201-212
    • /
    • 2009
  • As GIS analysis method began to be introduced in late 1980's, studies of land development applying the GIS also started to be proceeded in various fields. Since 2003, Land Suitability Assesment has been adopted in order to prevent national land from development thoughtless for the environment and to plan appropriate national land management in terms of green development. Land Suitability Assessment System II based on diverse GIS analysis method such as Contour Analysis, Overlay Analysis, Network Analysis was particularly adopted to draft plans of specifying and altering of exclusionary zoning as well as installing and maintaining of urban planning facilities. But there has been a lot of problem, like an inaccurate basic data and assessment indicators, unmatched threshold, and contradicted evaluation result between each evaluating systems. Even though it is suited to an evaluation criteria, grade distribution is applied to start at 20, and development-centered evaluation result is offered. Now, we observed how suitability values and grading were changed, ordering to change grade distribution system from $20{\sim}100$ to $0{\sim}100$. In result, it showed changes of grades in some parcels. And in case of suitability values, 87% of parcels decreased to minimum 1 point, maximum 70 points. It means that changing grade distribution system of assessment system II doesn't have only influence on suitability values and grading but it is also an empirical analysis because of considering both development and maintenance.

  • PDF

Evaluation of Land Subsidence Risk Depending on Grain Size and Verification using Numerical Analysis (지반입도조건에 따른 지반함몰 가능성 평가 및 수치해석적 검증)

  • Lee, Jong-Hyun;Jin, Hyun-Sik;Baek, Yong;Yoon, Hyeong-Suk
    • The Journal of Engineering Geology
    • /
    • v.27 no.2
    • /
    • pp.133-141
    • /
    • 2017
  • In this study, filter conditions by difference in grading between core material and filter material used for dam construction was applied as evaluation condition for surrounding ground conditions near excavation site in a bid to identify the risk of land subsidence resulting from the erosion of soil particles. To that end, filter conditions proposed for the test was evaluated and the risk of land subsidence depending on grain size conditions was also evaluated using the filter conditions developed by COE. Consequently, evaluation diagram that can be used to determine the risk of land subsidence using grain size conditions obtained from ground investigation data was developed, which is expected to help evaluate the possibility of land subsidence depending on changes to the stratum. To simulate the particle flow process, PFC3D program was used. It's not only intended to determine the land subsidence pattern caused by falling ground water level but also predict and evaluate the land subsidence caused by soil erosion using grain size condition which can be verified by numerical analysis approach.

Land Suitability Analysis of Collective Facility Area in the Kimhae Daechung Park using Geographic Information System and Multi-Criteria Evaluation (GIS와 다요소의사결정방법(MCE)에 의한 김해 대청공원 집단시설지구 적지분석)

  • Hwang, Kook-Woong;Lee, Kyu-Wan
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.3 no.3
    • /
    • pp.45-53
    • /
    • 2000
  • Geographical Information Systems(GIS) overlay analyses, while ideal for performing spatial searches on nominally mapped criteria, are of limited use when multiple uncertian criteria are concerned. But, Multi-Criteria Evaluation(MCE) techniques offer a means of making complex siting decisions, involving multiple criteria. The integration of GIS and MCE techniques became rational and objective approach to perform land suitability analysis on the basis of multiple criteria. An example application based on the search for suitable sites for the collective facility area in the kimhae daechung park using IDRISI is described.

  • PDF

Development and Application of Natural Ecosystem Value Assessment Model in Land Development (개발사업지구 내 자연생태계 가치평가모델 개발 및 적용)

  • Lee, Dong-Kun;Yi, Hyim-Yi;Kim, Eun-Young;Choi, Jaeyong
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.12 no.3
    • /
    • pp.59-71
    • /
    • 2009
  • The goals of this study were to development Natural Ecosystem Value Assessment Model, to suggest the practical applicability of the Natural Ecosystem value assessment for development areas, and to assess natural ecosystem quantitatively using GIS. The Model can evaluate Natural Ecosystem Value between before and after land developments. To select indicators for the model, we conducted the literature reviews. and six indicators and the standard of evaluation had been developed through the expert interviews and literature reviews. the relative importance of the evaluation index throught two times expert questionnaires was found out. the Natural Ecosystem Value Assessment Model has been established, The results demonstrate that although the suggested six indicators are arranged by priority, to maintain quantitative and qualitative the natural ecosystem value, all indicators are desirable to be maintained complementarily. The findings of this study suggest that the natural ecosystem value assessment model appears to be effective an assessment for damaged natural environment value and possible to assign a score value. Also, this model can be applied to research areas and has implications to help maintain the natural ecosystem in land development districts.