In this study, we analyzed how the revenue water ratio(RWR) is affected by changes in conditions of the water supply area, such as the ratio of aging pipes, maintenance conditions, and revenue water. As a result of analyzing the impact of pipe aging and maintenance conditions on the RWR, it was confirmed that the RWR could be decreased if the pipe replacement project to improve the aging pipe ratio was not carried out and proper maintenance costs were not secured. It was also confirmed that an increase in the revenue water could be operated to facilitate the achievement of the project’s target RWR. In contrast, a decrease in the revenue water due to a population reduction could affect the failure of the target RWR. In addition to analyzing the causes of variation in the RWR, the calculation of estimated project costs was considered by using leakage reduction instead of RWR from recent RWR improvement project cost data. From this analysis, it was reviewed whether the project costs planned to achieve the target RWR of the RWR improvement project in A city were appropriate. In conclusion, the RWR could be affected by variations in the ratio of aging pipes, maintenance conditions, and revenue water, and it was reasonable to consider not only the construction input but also the input related to RWR improvement, such as leakage reduction, when calculating the project cost.

CANDU Spent Fuel (CSF) dry storage system, SILO, has been operated from 1992 at Wolsung under 50 year operating license. As of 2023, this system has been operated for over 30 years and its licensed remaining operation time is less than 20 years. When it faces the final stage of operation, it has only two options; moving to a centralized away-from-reactor storage or extending its license atreactor. These two options have an inevitable common duty of confirming the CSF integrity by a “demonstration test”. Since the degradation of CSF and structural materials in the SILO are critically dependent on temperature, two important goals of the ‘DEMO test’ were set as follows. 1. Design of ‘DEMO SILO’: Development of internal monitoring technology by transforming SILO design. 2. Accurate measurement and evaluation of the three-dimensional temperature distribution in the ‘DEMO SILO’ Based on operating real commercial SILO dimension, a conceptual “DEMO SILO” design has been developed from 2022. Because, unlike with commercial Silo, ‘Demo Silo’ must be disassembled and assembled, and have penetration holes. Safety evaluation technologies like structural, thermal and radiation protection analysis also have been developed with design work. ‘Demo SILO’ should evaluate an accurate 3D temperature distribution with minimal number of thermocouples and penetration holes to avoid disruption of internal flow and temperature distribution. For this reason, a ‘Best Estimate Thermal-Hydraulics evaluation system for SILO’ is under development and it will be essential for ensuring temperature prediction accuracy. Construction of a full-scale test apparatus to validate this technology will begin in 2024. In order to supply power to many heaters and monitor temperature gradient inside of this apparatus, it has modular design concept by dividing its whole body to axial 9 sub-bodies which looks like a donut containing a basket at center position.

The decommissioning of a nuclear power plant is a project that consists of several stages, and various technologies are applied when performing various tasks at each stage. And it is essential to secure safety and economic feasibility. As the paradigm has changed due to digital transformation in various industries, digitalization is applied to the life cycle of nuclear power plant from construction, operation and decommissioning project. Element technologies are being developed for decommissioning plan establishment, process design, econtamination method, decommissioning work process, waste management, environmental monitoring and radiation dose simulation. The utilization of digital twin in the decommissioning stage is classified into three categories. ① Process Monitoring (decommissioning work procedure, work progress (plan/actual), real-time work status and etc.) ② Facility Monitoring (real-time sensing and video data monitoring, decommissioning SSCs information, work alarm and etc.) ③ Safety Monitoring (work safety, radiation exposure, fire monitoring, work risk and etc.) A system suitable for the decommissioning stage and work should be developed in consideration of the target of use, development function, and when to create data according to the purpose of the system. Simulation module according to user purpose should be provided. In addition, data-base management should be performed according to the decommissioning characteristics in consideration of the data associated with the existing operating system. The system to be developed should support the project management to comply with the domestic standards and regulations to be determined in the future. This will improve the competitiveness of domestic and foreign markets.

The establishment of processes for the decommissioning a Nuclear Power Plant (NPP) is one of the objects that must be prepared in carrying out the decommissioning project. In particular, in the domestic situation, where there is no experience of decommissioning commercial NPPs, it is necessary to organize the tasks and contents well in advance for the successful initiation of the project. Therefore, this study intends to present a guide-level approach to develop management for domestic decommissioning projects. As a documented template for recognizing a process, there may be a process map and description, and information such as the work structure and the relations between the activities should be indicated. In reality, activities will be managed through a set of computer system, so it would be better if the work content, activity flow, relation, management target information, computerization contents, etc. were materialized in the process. What is important here is to define the management areas and activities and draw the activity flow. Domestically, it has rich experience in construction of NPPs and has a track record of exporting NPPs to the UAE. From these experiences, we have established a framework for standardized work in construction management and construction processes, and are performing them through a computerized system. Since the work of decommissioning has a similar nature to that of construction, we will be able to benchmark the procedure for the decommissioning from the construction management procedures. Typically, in the case of schedule management, the concept and structure of the construction process will be applicable to the decommissioning. Meanwhile, the licensee of domestic decommissioning is the same as the licensee that performs the operation, and the members who will perform the decommissioning also have experience working in the operation period. Therefore, the decommissioning works are an extension of the task during operation. Representatively, there are some processes that can be applied as it is even when decommissioning, such as dismantling work and the safety management process of the radiation zone. Therefore, in carrying out the decommissioning of NPPs in Korea, processes and activities of the management area should be established from the construction processes with abundant experience and the processes during operation. Rather than making a completely new work process, this approach that properly reflects the existing work flow is expected to be an appropriate way to avoid the repulsion of employees and maladjustment to the new environment.

This study aimed to develop a questionnaire that is suitable for the resident-participatory ODA evaluation to minimize the bias and insufficient scientific rigor in the self-made questionnaire developed by evaluators. A modified Delphi survey was conducted twice with 16 ODA experts who had experience in international cooperative development in the fields of rural development, education, health, and poverty. Sixty-two questions were finally selected for resident-participatory ODA evaluation: 7 questions on relevance, 8 questions on efficiency, 9 questions on effectiveness, 11 questions on impact, questions on for sustainability, 4 questions on gender mainstreaming and environmental impact, and 17 questions on spillover effect on the community. A resident survey with the newly developed questionnaire will generate high-quality data that can empirically analyze the causal-effect relationship between ODA activities and performance, and community changes, and it can also contribute to the development of a quantitative ODA evaluation tool at a local level of recipient countries.

본 연구는 치유농업 프로그램이 현재 운영되고 있는 현황을 조사하여, 향후 치유농업 산업의 활성화를 위한 정책 수립에 활용하고자 수행하였다. 조사 모집단은 치유농업육성 시범사업에 참여한 173개소의 농장으로 하였으며, 2019년을 기준으로 치유농업 사업을 운영한 농장 중 설문에 응답한 곳은 106개소였다. 조사 결과, 치유농장에서 운영한 프로그램의 개수는 농장당 평균 3.8개였다. 프로그램 운영 기간은 4∼10월에 집중되었다. 대부분은 요일에 관계없이 주중, 주말 모두 운영하였으며 시간대는 주중과 주말이 유사하게 10시에서 16시까지 운영하는 곳이 많았다. 이용객 비중은 단체가 69.1%, 개인이 30.9% 이었으며 프로그램에 활용하는 자원은 식물이 58.8%로 가장 많았다. 치유농업 프로그램 참여 대상은 초/중/고 청소년이 69.8%로 가장 많았으며, 특성별 기준에서는 일반인이 70.8%로 가장 많은 비중을 차지했다. 프로그램 1회당 정원은 평균 26명이었고, 연간 평균 진행 횟수는 19회, 연간 평균 참여 인원은 450명 수준이었다. 치유농업 프로그램 다양화나 대상자 맞춤형으로 활용할 수 있도록 좀 더 심화된 사례조사가 이루어져야 할 것으로 여겨진다.

본 연구는 지역의 자원을 발굴하고 지역주민의 삶의 질을 제고시키는 지역사회서비 스투자사업의 특성상 사업의 접근방식, 지역자원 발굴과정에 따라 사업의 진행양상이 전혀 다르게 나타날 수 있다는 것을 염두에 두고 새로운 지역발전의 전략으로서의 단서를 탐색하는 것을 목적으로 하고 있다. 이를 위해 “지역사회서비스투자사업”의 개발과정 및 포괄보조내 우선순위 선정과정이 이용자와 지역사회 변화를 통해 도시환경을 개선하였는가에 주목하고, 지역사회서비스투자사업을 추진 중인 낙후지역을 선정하여 사례 연구를 진행하였다. 이를 통해 지역사회서비스투자사업이 내생적 지역개발 수단으로 작용하기 위해서는 서비스 발굴 및 기획단계에서 지역주민의 욕구를 반영하는 것이 중 요함을 알 수 있었다. 이러한 점에서 강원도 지역자율형사회서비스투자사업의 성공적인 추진을 위해서는 단체장의 관심이 매우 중요하고, 차별화된 지역 특성을 고려한 다양한 사업을 적극적으로 발굴·기획하는 노력이 필요하다. 향후 지역사회서비스투자사업이 활 성화되어 사회서비스 제공과 지역의 개발이 동반성장하길 기대한다.

우리나라의 주차공간 부족은 최근 자동차수 증가 추이에 따라 점점 심화되고 있으며, 주차장 부족현상은 노후주택 밀집지 및 전통시장 주변, 관광지 등이 가장 심각할 것으로 예상되나, 의외로 개발단계부터 체계적인 토지이용계획이 수립되는 택지개발지구에서 더욱 심각하게 발생되고 있다. 본 연구는 남양주 별내택지지구를 중심으로 주차장용지 계획내용, 주차전용건축물 이용실태 및 주차장에 대한 수급불균형이 발생되는 사례를 통하여 주차문제를 해결하기 위한 문제점 분석 및 개선방안을 공급계획단계, 건축운영 단계, 관리감독단계로 제시하는 데 그 목적이 있다.

본 연구는 택지개발사업으로 조성된 단독주택용지가 ‘주택의 노후화와 토지이용의 혼재, 비주거시설의 확산, 공실(빈집) 증가 등으로 주거환경이 악화됨에 따라 범죄가 증가할 것이다’라는 가설 아래 진행되었다. 조성된 지 27년이 지난 단독주택용지를 대상으로 1996년 토지이용실태에 관한 연구 자료와 비교·분석하고, 주거환경과 폭력·절도범죄 발생(2006～2018년)과의 관계를 분석․고찰하였다. 연구 결과, 첫째, 1996년에 비해 2016년 비주거시설이 2배 이상 증가하며 지구 내 집산도로에 접한 주거지 내부로 확산되었고, 업무와 종교, 공실의 비율이 증가하였다. 둘째, 폭력범죄는 통과교통이 발생하는 보조간선과 집산도로에 접한 용도혼재 필지에서 발생비율이 높았고, 제2종근린생활시설 중 주류 판매시설이 밀집한 곳에서 집중되어 발생하였다. 셋째, 절도범죄 중 침입절도범죄율이 높게 나타났고 비주거건축물(39.7%) 보다 주거건축물(60.3%)에서 발생률이 높았다. 넷째, 공실이 있는 건축물에서의 범죄율은 높지 않지만, 공실이 입지한 가로의 인접 건축물과 노상에서 중복적으로 범죄가 발생되었다. 이러한 분석결과는 노후주거지의 주거환경 향상을 위해 주민과 행정 및 경찰이 협력하여 CPTED 사업 추진에 활용할 수 있고, 향후 단독주택용지를 조성함에 있어 ‘안전성’을 확보할 수 있는 가로 및 필지체계 계획과 지구단위계획에 반영할 수 있다.