• Korean Journal of Construction Engineering and Management
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• v.12 no.4
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• pp.88-96
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• 2011

Schedule control is an exceedingly fundamental and important construction business function. Even though enormous research efforts have been exerted in this area, there has been no comprehensive and quantitative study exploring detailed cost control practice of construction companies in terms of practical patterns and trends. In this context, this paper surveyed the patterns and trends of schedule control practice of Korean general contractors. Schedule control process as compared to schedule reduction is focused in this paper. The variables for practical schedule control process were identified first. A survey questionnaire was then developed and used in order to collect data from Korean general contractors. Survey results analyzing responses from 45 companies show that scheduling processes in practice have been significantly enhanced in terms of software tools, manuals, and capabilities of engineers.

• Korean Journal of Construction Engineering and Management
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• v.17 no.3
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• pp.125-133
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• 2016

The Project Risk Management is intended to result in the effective management by identifying in advance and mitigating all significant risks including project risks and opportunities during the entire project life cycle - from project inception to completion of construction. It is impossible to predict an exact budget and construction duration before finishing a project. So, Washington Department of Transportation mandates that workshop-based risk management is conducted for projects over specific cost. However, the domestic construction sites have depended on numerical risk analysis without any workshop and efficient risk management have not made. Therefore, in this study, we propose the effective risk management using the RBES program which is very useful for workshop-based risk management and pre & post mitigation, by workshop-based risk management techniques. This proposed risk management approach is applied to a domestic 'A' river recovery project. It is concluded that we may expect the effect to mitigate the total cost overrun problem and the construction duration delay effect in the project by identifying significant risks and by preparing effective risk mitigation strategies.

• Journal of KIISE:Software and Applications
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• v.33 no.11
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• pp.923-935
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• 2006

As the knowledge-based society has been constructed, the size of work process that has to be done grows bigger and the amount of the information that has to be analyzed increases. So each company is trying to construct more conformable process models in business model. In order to support the process construction of companies practically, in this paper tools of Six Sigma is applied to process definition and tools of PSP is applied schedule management. And to use the proposed tools efficiently, the procedure of process definition and schedule management are suggested. The goal of the proposed method is to achieve the process aim within the Time-To-Market by applying the process management of organizations and persons. And the goal of individuals is to improve personal process with the collected data.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.5-12
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• 2008

The construction of Pusan National University Yangsan Hospital is a new construction of a medical town in Yangsan. It is a case that CMr participated in the project from planning to post-completion. It shows an actual proof of Construction Management business applied CM by each phase. In this case, CMr selected the design-build contractor in the planning phase and technically performed CM businesses in every single phase such as design and construction schedule management regarding application of Fast Track technique, procurement management and contract administration in phases based on the Fast-tract; technique, design review, VE in the design phase, change order management in the construction phase and operating and maintenance in the post-construction phase. This study would go far toward applying CM to Mega Turnkey projects by analyzing the problems of CMr's practical application to the project and providing guidelines for effective and efficient CM business implementation especially in the Turnkey projects.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.575-578
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• 2004

Since a construction project is a series of works that utilizes resources to accomplish the project goal for a given time period, efficient resource management is a prerequisite for the success of the project. Two major areas of resource management are resource constrained scheduling focusing on the limited resource availability and resource leveling focusing on smoothing resource usage pattern on the fixed project completion time. It is not available, however, to apply both techniques to a project at the same time. This paper proposes a model to enhance the minimum moment algorithm of resource leveling, aiming to find an efficient usage of resources and an appropriate project completion time. A survey is performed to evaluate the major five factors using the AHP.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.456-459
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• 2002

It is lately issued studies on EVMS(Earned Value Management System) throughout construction industry, which is management system integrating cost and schedule effectively. So identifying importance and circumstance of introducing EVMS, CPI(Cost Performance Index) and SPI(Schedule Performance Index), which are critical components on schedule introducing EVMS, calculate and it intends to analyze the trend and problem of cost and time throughout project management, applying various statistical data analysis method.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.638-641
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• 2003

This paper suggests that construction management services should be performed considering the owner's and the project's characteristics through the examples of the successful projects. For this study, the critical CM services in each phase regarding schedule management, cost management and information management are presented and the problems of the CM delivery system in Korea are analyzed with respect to policies, users, suppliers/CMrs and construction environments. Besides, the situation of the delivery systems in Korea and the differences of each delivery system are presented. It is concluded that, for the settlement of CM delivery system in public construction market and, ultimately, the successful execution as an agent of the owner, CMr should diversify the services and give the optimum CM services appropriate for each project's characteristics.

• Korean Journal of Construction Engineering and Management
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• v.7 no.3 s.31
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• pp.76-85
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• 2006

Quality is the core competence for customer satisfaction in current competitive business environments. The manufacturing companies regard the quality as the success factor in enhancing competitiveness and foremost concept of the management innovation. But in many cases, the basis for the quality management and the action programs are not prepared yet. In construction industry, normally schedule and cost have priority over quality and the level of overall quality is relatively lower than other industries. This is caused by the vague quality goal and result-oriented management. This study suggests the quality performance indicators for measuring performance objectively, and develops the continuous quality monitoring system based on those indicators. By using this system, the quality improvement can be expected and corporate quality competitiveness can be ensured.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.504-508
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• 2003

Cost and schedule are the major concerns for the successful construction project management. The four dimensional CAD (4D CAD) integrating graphical data and scheduling data has also been an area of research interests for improving construction controls. In order to achieve the benefits from these areas in an integrated way, this study proposes a 4D-EVMS system for the owners. Managerial requirements for cost and schedule control for the owners are identified first. A 4D-EVMS model is then proposed which provides functional flexibility in order to enhance the efficiency of the system. Lessons learned and practical implications are briefly summarize.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2011.04a
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• pp.95-98
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• 2011

건설공사 프로젝트는 사전 기획 단계, 설계, 계약, 시공, 운영 및 유지관리 등 각 단계의 다양한 참여 주체에 의해 프로젝트가 진행되고 각 분야 간의 원활한 의사소통을 통한 협력 작업으로 일을 진행한다. 그러나 각 단계별 참여주체간의 협업이 어렵고 정보교류가 원활하지 못한 문제점들이 있다. 또한 건설공정은 현장여건의 변화와 불확실성으로 인해 예측이 어렵고, 보다 신뢰성이 있는 계획의 부재로 인하여 각종 세부 공정들 간의 간섭을 유발하고 계획된 일정을 준수하기 어려워 불필요한 비용의 낭비와 공사기간의 증가를 야기한다. 이러한 낭비요인을 최소화하고 건축 프로젝트를 진행하는데 있어서 효율성을 높이기 위해서는 시공계획 단계의 신뢰성을 높여야 한다. 따라서 시공전의 계획 단계에서부터 4D 시뮬레이션을 통하여 이러한 문제점들을 파악하고 개선하는 것이 중요하다. 본 연구에서는 BIM기반의 시뮬레이션 프로그램의 기능분석을 통하여 효율적인 적용과 발전과정을 알아보고자 한다.