• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.30 no.5D
• /
• pp.461-465
• /
• 2010

The objective of this study is to calculate road user costs that caused by the expansion work of metropolitan arterial highway and to analyze the costs that affect economic feasibility evaluation. "Taerung~Guri IC" section of Bukbu Expressway was selected as a case study. As a result, it shows that these costs could be a factor for determining economic feasibility for some projects. However, decreased capacity and free-flow speed are seriously different as period, type, length and traffic volume of work zones. These factors that decrease traffic capacity and free-flow speed should be deeply researched in the future.

• Korean Architects
• /
• s.615
• /
• pp.28-31
• /
• 2020

도입까지 시간이 걸릴 것이라고 예측됐던 건설정보모델링(BIM : Building Information Modeling, 이하 BIM)이 어느새 성큼 다양한 분야에 진입했다. 영국, 싱가포르, 미국 등 해외에서는 이미 공공사업 시 BIM을 적극적으로 활용하고 있다. 우리나라 또한 2018년 국토교통부에서 '스마트 건설기술 로드맵'을 마련한 후 공공사업에 BIM을 단계적으로 도입해왔다. 대부분의 발주기관들은 오는 2025년까지 공공사업에 BIM을 전면 도입한다는 계획이다. 성균관대학교 공과대학 건설환경공학부 및 미래도시융합공학과 교수이자 국제건설자동화학회의 종신 상임이사인 권순욱 교수는 '스마트 건설 관리' 연구자이자 국내외에서 활동 중인 CM, BIM의 권위자다. 관련 분야의 책 8권과 100편 이상의 논문을 집필하고 30여 개의 특허·소프트웨어 등록을 보유하고 있다. 텍사스 오스틴 대학교 토목공학 박사 출신으로, 삼성물산, 한국건설기술연구원 등 일반 기업과 국가기관에서 실무와 이론을 두루 경험하며 경력을 쌓았다. 건설연구개발사업, 첨단 융복합 건설기술 등 다수의 국가 건설 R&D에 참여해 초고층 자재, 안전 모니터링, BIM 프로세스 표준개발 등의 시스템을 개발하기도 했다. 해외 연구자들과의 교류에도 적극적이다. 세계 석학들과 '노령 공학' 관련 영문교과서를 공동 집필(스마트주택 챕터 담당)했고, 2016년과 2019년엔 국제건설자동화학회와 국제프로젝트관리학회의 연사 자격으로 강단에 섰다. "영국, 싱가포르 등에선 공공사업을 100% BIM으로 발주하기 시작했습니다. 우리나라 정부도 비슷한 길을 가고 있습니다. 일정 규모의 발주 물량이 안정적으로 나오는 공공기관에서 그렇게 한다는 것은 국가가 전체 패러다임을 바꾸겠다는 의지 아닐까요?" 6월 10일 그의 연구실에서 권순욱 교수를 만나 BIM의 현황과 전망에 대해 들어봤다.

• Journal of Korean Society for Geospatial Information Science
• /
• v.9 no.1 s.17
• /
• pp.39-47
• /
• 2001

DTM(Digital Terrain Model) can play a key rule in a great number of the fields of construction Engineering. One of the most important application fields is to determine volume in that the total construction expenses is usually calculated through this. It therefore is necessary to the study on improving the precise of the determination using DTM on account of saving time and cost. On this study, 1:5000 topographic maps issued by NGI in 15 districts involved in Pusan city was digitalized to generate DTM at first. After this step, not only was the determination of the volume as well as readjusted area and height done for the sake of estimating the changable topography caused by cut & fill volume in future but also provided the model to calculate it as results. In addition, comparison among the interpolations, such as Inverse Distance Method and Nearest Neighbor, was respectively done to look over the differences of the volume estimated from each interpolation and also to find the most suitable method. As a result, the former yielded the largest values of area and the volume while the latter gave the smallest ones. Moreover, the values estimated on this study were closely similar to ones obtained by the government of Pusan.

• Journal of Environmental Policy
• /
• v.12 no.4
• /
• pp.45-69
• /
• 2013

This study estimates baseline greenhouse gas emissions from transport sector when a new town is developed. It has adopted a general greenhouse gas estimation model developed by Schipper, celine, Roger(2000) for the estimation, and showed how various transport related statistics can be utilized in detail. Particularly, it has produced unit greenhouse gas emission factor per vehicle types, vehicle-km, and trip-km. To evaluate effects of greenhouse gas reduction policies, it has calculated how much emissions will be reduced from bicycle promotion. It has turned out that about 369 thousand tons of carbon dioxide will be emitted from transport sector once the 1st Geomdan New Town is developed in Incheon metropolitan city. If the policy of bicycle promotion can attract people to use bicycle as much as 5% of total trips, then it can reduce about 1,869 tons of carbon dioxide.

• Land and Housing Review
• /
• v.13 no.1
• /
• pp.113-129
• /
• 2022

A building's eco-friendliness is directly related to various values including the life cycle cost of a building. However, the conventional architectural design method has a limitation in that it cannot create an optimized case according to the surrounding environmental conditions. Therefore, the purpose of this research is to present a design assistance tool that can review planning cases optimized for the environmental conditions of the building site in the planning stage of architectural production. To achieve the purpose of the study, an algorithm for realizing 3D modeling of the region and analysis of the solar environment was produced based on the site contours, building, and road information from the digital topographic map provided by the National Geographic Information Institute. To examine the validity of the developed algorithm, a comparative experiment was conducted targeting the elevation direction of the existing building. As a result, it was found that the optimal elevation direction selected by the algorithm can receive higher insolation compared to the front facade of the main building.

• Spatial Information Research
• /
• v.14 no.3 s.38
• /
• pp.321-334
• /
• 2006

3D spatial data are of increasing interest in landscape analysis, urban planning and map services based on Web, because of its reality. But the amount of 3D spatial data are very large in comparison with 2D spatial data. Therefore it is necessary to have a efficient methods to transfer and visualize 3D spatial data. The concept of Level of Detail in Computer Graphics is effective. This paper briefly presents two LOD data models of data transmission based on the spatial data model of international standards. First, it is separated LOD model that gives a LOD level to object. Second is Selective LOD model that gives a LOD level to object's element. We compared the efficiency of 3D data transmission based on two LOD model.

• Journal of Convergence for Information Technology
• /
• v.9 no.10
• /
• pp.1-8
• /
• 2019

Generally, printers are common for users to use for public use over a wired or wireless local area network. The number of printers in the same network is increasing, and management of multiple printers is needed. To do this, a program that drives two or more printers and a computer connected by a wired or wireless network. When a computer's control department receives a print command for a designated file, it executes the steps of receiving status information from the printer, selecting the printer, and sending the print command execution. As a method of research, we presented a method for selecting differentiation from this study through prior art research and literature research. Therefore, the purpose of the study is to distribute smart print commands according to real-time status information of many printers to increase the efficiency of the printer's management, and to distribute print commands according to the cumulative and usable workload of many printers so that parts replacement of many printers can be instantaneously performed.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.20 no.9
• /
• pp.133-141
• /
• 2019

Crew rostering in railway operations is usually done by arranging a crew diagram in accordance with working standards every month. This study was done to identify the problems related to the creation of crew rosters in railway operations and to suggest an optimum crew rostering method that can be applied in railway operations planning. To do this, the work standards of a railway company were identified, and a genetic algorithm was used to develop an optimal roster with equal working time while considering actual working patterns. The optimization process is composed of analysis of the input data, creation of work patterns, creation of a solution, and optimization steps. To verify the method, the roster derived from the proposed process was compared with a manually created roster. The results of the study could be used to reduce the deviation of business hours when generating a roster because the standard deviation of working time is the objective function.

• Journal of Environmental Policy
• /
• v.10 no.3
• /
• pp.21-48
• /
• 2011

The paper affirms the weight proportion concept as an element, which could be empirically analyzed quantitatively through the developmental expansion of qualitative empirical analysis on taxonomy that is required for the construction Low-Carbon Green Cities and their eco-friendly elements, such as a pleasant residential environment The weight proportion concept is proposed as a new measure to identify eco-friendly elements and as an objective assessment indicators. To perform an empirical analysis, surveys were first given to the residents of Metropolitan Newtown (50 persons) and outside experts (50 persons) for the total of 100 persons. Second, the paper surveyed 74 sites of Eco-Environmental Certified Apartment Housing Complexes. Upon analysis of eco-friendly elements by their type and total weight, the largest weight proportion was expressed in the interior and eco-environmental elements, carbon-decrease types, and carbon-absorption types. The results of this paper confirm recent positive sentiments and preference toward a variety of future-oriented and sustainable eco-friendly elements like the eco-housing and new renewable energy, In addition, the paper affirmed the new housing trend towards constructing eco-friendly elements, such as carbon-decrease and carbon-absorption, that induce long-term investments, despite their need for higher investments.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.22 no.1
• /
• pp.39-50
• /
• 2019

Since the "Special Law on Cadastral Resurvey" was enforced in 2012, the Cadastral Resurvey Project in South Korea has been promoted in earnest. However, it has been difficult to obtain the following items: a budget for the project, the establishment of land boundaries by increasing/decreasing the area of the parcels of land in the downtown area, the calculation of the adjustment fee, and the analysis of the relationship between the business owner and the landowner in regards to conflicts of opinion. The analysis of Japan's private-public boundary system, which is promoting the Cadastral Resurvey ahead of South Korea, should not attempt to determine complex interests, especially when they are pursuing consensus of the boundary setting portion of the Cadastral Resurvey Project. Therefore, this study shows that there is a need to reduce the number of stakeholders and promote them by using a step-by-step process. The introduction of cost-saving measures for the Cadastral Resurvey through a private-public boundary preliminary investigation is needed. This study suggested the following: link the precision road map construction business using MMS, introduce the preliminary research projects for the Cadastral Resurvey, and gather the important land survey information for the private-public boundary basic survey. In order to establish the utilization base, the researcher proposed linking the downtown area regeneration with the downtown area planning business.