• Korean Journal of Construction Engineering and Management
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• v.20 no.6
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• pp.23-33
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• 2019

The purpose of this study is to analyze the housing price variation within the redevelopment project district, affected by the characteristics of project and implementation stage. This study implemented the hedonic price model employing the actual transaction price with 24 dependent variables from 2006 to 2016 inside 19 redevelopment districts in Seoul. Research finding indicates that the larger ratio of the number of tenants and general distribution, the smaller ratio of rented households and the more positive effect of housing price. It is noteworthy that this study demonstrated the actual transaction price of houses located within the project districts by implementation stage. This study is expected to help the policy makers, the developers and the investors make more reliable decisions on the feasibility study related to the redevelopment project.

• Journal of the Korea Institute of Military Science and Technology
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• v.22 no.4
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• pp.567-574
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• 2019

Traditional project progress method(PPM) has been used for Korean defense research and development project management for the last 20 years. However, it is difficult to intuitively understand the performance in terms of the project schedule, because the PPM does not provide the function of managing and forecasting project schedule. Therefore, this paper proposes new schedule managing and forecasting function for the PPM using earned schedule management concept. We verify the effectiveness of the proposed functions through several defense projects and prove that it is possible to reinforce the schedule management function of the PPM.

• 한우개량
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• no.4 s.25
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• pp.22-27
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• 2000

지금 한우개량에 대한 관심이 일기 시작하고 있다 한우 농가라면 누구나 훌륭하게 개량된 한우를 가지기를 원한다 이것은 농가의 소득과 직결 된 것으로 너무나 당연하다. 특히 고급육을 생산하여 도매시장에 출하 해본 농가라면 도체 성적에 따라 가격 차이가 크다는 것을 경험했을 것이다. 이때 농가는 자기 집의 동일한 환경에서 동일한 사료를 급여하여 출하 한 소가 왜 출하 체중도 다르고 도체성적이 다를까 하는 의문을 가지게 되며 이것은 바로 종자에서 오는 차이임을 알게 된다. 이때부터 농가는 육량과 육질이 우수한 종자가 따로 있음을 알고 우수한 밑소를 찾기 시작한다. 이처럼 한우개량에 대한 관심은 고급육 생산 농가로부터 일기 시작하여 전국적으로 한우농가와 지방자치단체를 중심으로 관심이 고조되고 있다 지금까지의 한우개량사업은 정부 주도로 추진되어 왔을 뿐 지방자치단체나 일반 한우농가는 별로 관심을 보이지 않은 것이 사실이다. 이제 일부 지자체에서는 자기지역 한우농가의 소득향상과 지역경제 활성화를 위하여 지역 환경에 맞는 개량체계를 구축하여 추진하고 있다. 경남지역에서는 1999년도 경남 고성군의 한우산업 장기 발전 5개년 계획을 세워 추진하는 것을 시작으로 하여 함안, 남해, 밀양, 하동 등에서 개량사업을 독자적으로 추진하고 있고 다른 시 군에서도 많은 관심을 가지고 있다. 본고에서는 경남지역의 지방자치단체가 추진하고 있는 한우개량사업에 대하여 소개하고자 한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.11
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• pp.208-216
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• 2019

Construction projects generate a massive amount of diverse information. It takes at least five years to more than 10 years to complete, so it is important to manage the information on a project's history, including processes and costs. Furthermore, it is necessary to determine if construction projects have been carried out according to the planned goals, and to convert a construction information management system (CALS) into a virtuous cycle. It is easy to ensure integrated information management in private construction projects because constructors can take care of the whole process (from planning to completion), whereas it is difficult for public construction projects because various agencies are involved in the projects. A CALS manages the project information of public road construction, but that information is managed according to CALS subsystems, resulting in disconnected information among the subsystems, and making it impossible to monitor integrated information. Thus, this study proposes integrated information management measures to ensure comprehensive management of the information generated during the construction life cycle. To that end, a CALS is improved by standardizing and integrating the system database, integrating the individually managed user information, and connecting the system with the Dbrain tool, which collectively builds artificial intelligence, to ensure information management based on the project budget.

• Korea Real Estate Review
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• v.28 no.1
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• pp.23-37
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• 2018

The genetic algorithm (GA) and branch and bound (B&B) methods are the useful methods of searching the optimal project combination (combinatorial optimization) to maximize the project effect considering the budget constraint and the balance of regional development with regard to the Urban Regeneration New Deal policy, the core real estate policy of the Moon Jae-in government. The Ministry of Land, Infrastructure, and Transport (MOLIT) will choose 13 central-city-area-type projects, 2 economic-base-type projects, and 10 public-company-proposal-type projects among the numerous projects from 16 local governments while each government can apply only 4 projects, respectively, for the 2017 Urban Regeneration New Deal project. If MOLIT selects only those projects with a project effect maximization purpose, there will be unselected regions, which will harm the balance of regional development. For this reason, an optimization model is proposed herein, and a combinatorial optimization method using the GA and B&B methods should be sought to satisfy the various constraints with the object function. Going forward, it is expected that both these methods will present rational decision-making criteria if the central government allocates a special-purpose-limited budget to many local governments.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.11
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• pp.7690-7697
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• 2015

This study is to reveal structural causal relationship of individual factors influencing association member's substantive payment in the economic view which is a critical factor of project implementation and identify its influence through simulation and actual proof analysis. As the results of analysis, the first, association member's substantive payment is decided to allow for the difference between special price for association members and general price and the profit arising between the time of approval of disposal plan and moving in. The second, on analysis of sensitivity of individual factors influencing association member's substantive payment, floor area ratio applied to project has the biggest influence. Association member's payment is also greatly influenced by the subject of cost allocation for establishing infrastructure in project area. The third, this study set up a structure model based on causal relationship among the factors deciding association member's payment and empirically examined influence and path of influence which the individual factors exercise. The result indicates that control elements and regional characteristic elements influence association member's payment through the medium of plan elements.

• Journal of Korean Society of Transportation
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• v.29 no.4
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• pp.113-123
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• 2011

Traffic signal control is one of the most cost-effective means of improving urban mobility. With the recent progress of ITS (Intelligent Transportation System) and the installation of the real time traffic control systems, traffic signal control is conducted in online and real time. Normally, time-of-day (TOD) signal control is used with the system, but no definite methodology has yet been available for efficient TOD signal planing designing. Such method and process are in need to optimize the traffic signal timing plan. This paper proposes the optimization of TOD signal timings on arterials. The effects of the signal timings from the proposed method were assessed in the field. The proposed includes the methods determining the separation of the TOD break points and the TOD intervals. Those were tested on an arterial consisting of ten coordinated signalized intersections. It was found from the test results that the proposed TOD signal timing plans outperformed the previous signal timings.

• International Journal of Highway Engineering
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• v.14 no.3
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• pp.111-120
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• 2012

Because people are gradually interested in bicycles, central and local governments provide many efforts for expanding bikeway plans and utilization. However, most domestic bicycle plans have been established for the urban and leisure. This research is focused on developing the evaluation method to give the priority order for the investment of rural community bicycle roads. For the methodology development, the planning hierarchy and indicator framework are proposed in this paper. In order to decide the weighting value for indicators, a questionnaire survey to transportation experts was conducted. Moreover, the coefficient for social and spatial equity was applied to consider the balance of regional development. The evaluation was applied to a pilot corridor comprised of a 160km section of national highway in korea. This methodology provides a new tool to decide priority order for the investment of bicycle facilities.

• Korean Journal of Construction Engineering and Management
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• v.6 no.5 s.27
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• pp.166-176
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• 2005

The purpose of this paper is to develop a framework for construction knowledge management. Three variables of proposed framework includes knowledge class, strategic business function, and engineering data form. Several different techniques for evaluating the variables are developed in order to develop a strategic action plan for engineering knowledge management systems. The proposed framework for an action plan will contribute to develop knowledge management systems related to strategic engineering functions for construction companies.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.35 no.3
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• pp.94-104
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• 2017

This study carried out field evaluation by experts, monitoring by the public, and visitor satisfaction survey for 77 cases of utilization of cultural property projects that received support from "Living and Breathing Hyanggyo and Seowon" in 2016. The result was 'normal' for the comprehensive evaluation, and by section, 'good' for planning, operating, performance, outcome and annual special index. The field evaluation by experts was rated as 'good', monitoring by the public was 'good', and also 'good' for visitor satisfaction survey. The advantages of the project were as follows; increased chance for enjoyment of local cultural heritage, expansion of human network for utilization of local cultural heritage, utilization of cultural heritage as community place, diversification of educational contents by using cultural heritage. On the other hand, the disadvantages were as follows; decline of program's quality, shortage of putting plan in practice, insufficient interest and participation of local government, insufficient promoting, shortage of educational contents for free semester system. At last, we suggested measures to develop the project as follows; develop program by using local characteristics, develop programs for foreigner, training experts, increasing on-line promotion, develop new lecture technique, utilization of cultural heritage as a local community place, utilization planning by each space, improvement of evaluation system, tightening up reflection of visitor's opinions, consulting for each programs.