• Korean Journal of Construction Engineering and Management
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• v.18 no.3
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• pp.42-51
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• 2017

Measuring and evaluating project progress and performance are the key element of the construction project success. Construction progress is typically measured quantitatively by evaluating cost and time allocated to the project deliverable, and thus properly integrating cost and time is essential to the project management. This research was performed to propose an alternative methodology to integrate the cost and time and provide a framework for the progress measurement. The researchers developed a typical work process for the cost and schedule planning and also developed an alternative cost-schedule integration method by using progress integration units (PIU). A discipline of a construction phase served as a common level for WBS and CBS integration, so the PIUs'were defined under discipline. A case study project was selected to validate the developed methodology. The result showed the proposed method improved efficiency of cost and time integration. The result also showed the excluding material for the progress measurement purpose significantly reduced the bias of progress measurement.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.553-558
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• 2003

The information of works performed by labors can be used for analyzing project status related to schedule, cost and productivity, etc. The purpose of this research is to develop a computer-based system by the application of PDA and barcode technology in order to measue and monitor the amount of workforce resources, works done and productivity. It is anticipated that the effective use of the devepoped system would be able to effectively assist the schedule planning and management for present and prospective construction projects.

• Korean Journal of Construction Engineering and Management
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• v.13 no.5
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• pp.144-152
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• 2012

The reason why most scheduling softwares currently using at construction projects adopt PDM (Precedence Diagramming Method) is that it can express an overlapping relationship between activities. However, the overlapping relationships in PDM are represented only by combinations of four overlapping types that connect the start and finish points of two activities, therefore, PDM cannot express efficiently the relationships between any middle points of two activities if they should be represented. This research proposes the method of transforming the four overlapping types of PDM to the overlapping relationships of BDM(Beeline Diagramming Method), new networking technique, that can connect the inter-relationships at any middle points of two activities as well as express multiple overlapping relationships. The proposed method will help not only to improve an efficiency of scheduling but also to upgrade the scheduling technique because BDM technique has a lot of unique advantages in scheduling.

• Korean Journal of Construction Engineering and Management
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• v.5 no.4 s.20
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• pp.87-96
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• 2004

The construction duration in apartment construction is an important factor which affects project cost. Henceforth, the time shortening is essential to retrench project cost and project risk when there adopt Five-Day Workweek and introduce apartment sales after completion of construction. Therefore, the purpose of this study is to examine closely the affecting factors on the duration of framework which forms about $40\sim50\$ percent of total time in apartment construction by analyzing the schedule mechanism of typical floor and to show the reasonable time shortening methods by case study. The shown schedule mechanism and basic schedule table can utilize as a guideline in case of scheduling of framework in the existing construction method. Also, the shown time shortening methods by three case studies will guide the direction and process of time shortening while there need time shortening in many-sided projects.

• Korean Journal of Construction Engineering and Management
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• v.6 no.6 s.28
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• pp.181-192
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• 2005

Labor work information can be converted into the useful construction information in an effort to analyze project status, measure performance, and design a new similar project plan. The labor work information can also be used to make productivity data, which can be used to analyze the relationship between 'as planned' and 'as built' in scheduling management of a project, and to calculate 'percent completion' as well as analyzing delay cause. It is require to effectively collect the labor work information base on the activities. In general, current project management heavily depends on the experience and judgment of project managers, according to the work progress. However, relying on the oかy experience and judgment of the project managers might deteriorate the transparency or reliability of the collected labor work information. The purpose of this research is thus to develop a computer-based system for monitoring the work information generated by labors input in activities using PDA and Barcode technologies, and to propose a application method of the productivity data for effective project management.

• Korean Journal of Construction Engineering and Management
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• v.6 no.1 s.23
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• pp.212-219
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• 2005

Time management is important in construction management Especially, in the high-rise apartment housing projects, it is very important to expedite the construction progress in order to meet the planned schedule. The objective of this paper is to propose the baseline for the progress rate using work volume and man $\cdot$ hours performed at work activity level. The work volume far each activity is transformed to the weighted value compared to total work volume for the floor Therefore, a progress rate for an activity is calculated by multiplying a weighted value and work volume. A progress rate for a floor and a building can calculated in this manner, respectively.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2001.11a
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• pp.36-41
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• 2001

건설현장관리에는 설비관리$\cdot$공정관리$\cdot$품질관리$\cdot$원가관리$\cdot$노무관리 등이 있는데 흔히 생산성향상과 원가 절감을 목표로 하는 공정관리와 원가관리의 목적을 달성하기 위해서는 안전관리는 어느 정도 무시되어야 한다고 생각하는 경향이 있다. 그러나 안전관리도 마찬가지로 원가의 절감을 지향하고 생산성 향상을 목표로 하고 있어 제반관리와 분리될 수 없다.(중략)

• Proceedings of the Korean Information Science Society Conference
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• 2008.06b
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• pp.469-472
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• 2008

건설부문의 정보화를 위해 국토해양부는 건설CALS(Continuous Acquisition & Life-cycle Support)사업을 추진하고 있다. 건설CALS란 건설사업의 설계, 시공, 유지관리 등 전 과정의 생산정보를 발주자, 관련업체 등이 전산망을 통하여 교환 공유하기 위한 정보화 전략이다. 건설CALS사업은 시스템 개발 부문과 건설정보 표준화 부문으로 구분할 수 있는데, 개발된 시스템으로는 건설사업관리시스템(건설사용, 발주기관용), 시설물유지관리시스템, 건설인허가시스템, 용지보상시스템, 건설CALS포탈시스템 등이 있다. 건설CALS시스템에는 건설사업의 공정관리, 원가관리, 안전관리 등의 많은 기능이 있음에도 불구하고 최근 그 중요성이 부각되고 있는 환경관리 기능은 없는 실정이다. 본 논문에서는 건설CALS시스템의 현황을 분석하고 환경관리가 가능한 체크리스트와 매뉴얼을 개발하여 시스템으로 구현하기 위한 방향을 제시하고자 한다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.137-142
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• 2001

The traditional schedule management system provides project manager with analysis reports, such as progress control, earned value management and resource management, including schedule chart. However, the reports and functions in the traditional system are still limited in 2D concept. Recently, the scheduling method is using 4D concept that time of construction schedule is linked to space of drawings. This study presents the limitation of those systems and an improved method for developing 4D system through the comparative analysis of representative 4D systems that are developed up to date.

• Construction Engineering and Management
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• v.5 no.6 s.22
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• pp.42-45
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• 2004