• Title/Summary/Keyword: construction Schedule Risk

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The research and correspondence of schedule risk management at the pre-construction phase of curtain-wall (커튼월 공사의 착공 전 단계에서 공정 리스크 규명 및 대응방안)

  • Jung Tae-Sik;Kim chang-duk
    • Korean Journal of Construction Engineering and Management
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    • v.6 no.4 s.26
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    • pp.71-79
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    • 2005
  • As construction projects have been extremely enormous, complex and special, risk factors have been increased consistently. Therefore, it is very important to identify and cope with the uncertain risk factors in such building constructions for successful project accomplishment. The purpose of this research is to approach practical affairs directly and show detail alternatives of risk factors by extracting the risk factors throughout construction process of curtain wall that is largely influenced on cost, quality, schedule ,safety and following activity. Also, extracting these risk factors make it possible to analyze quantitative risk and decide the priority raking of risk factors. Especially, this research is aimed to provide efficient management of scheduling risk that can make the risk minimize to practical workers who have different degree of knowledge and experience to the construction cite when the risk brings out suddenly.

Exploring Critical Risk Factors of Office Building Projects

  • NGUYEN, Phong Thanh;PHAM, Cuong Phu;PHAN, Phuong Thanh;VU, Ngoc Bich;DUONG, My Tien Ha;NGUYEN, Quyen Le Hoang Thuy To
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.2
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    • pp.309-315
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    • 2021
  • Risks and uncertainty are unavoidable problems in management of projects. Therefore, project managers should not only prevent risks, but also have to respond and manage them. Risk management has become a critical interest subject in the construction industry for both practitioners and researchers. This paper presents critical risk factors of office building projects in the construction phase in Ho Chi Minh City, Vietnam. Data was collected through a questionnaire survey based on the likelihood and consequence level of risk factors. These factors fell into five groups: (i) financial risk factors; (ii) management risk factors; (iii) schedule risk factors; (iv) construction risk factors; and (v) environment risk factors. The research results showed that critical factors affecting office building projects are natural (i.e., prolonged rain, storms, climate effects) and human-made issues (i.e., soil instability, safety behaviors, owner's design change) and the schedule-related risk factors contributed to the most significant risks for office buildings projects in the construction phase in Ho Chi Minh City. They give construction management and project management practitioners a new perspective on risks and risk management of office buildings projects in Ho Chi Minh City and are proactive in the awareness, response, and management of risk factors comprehensively.

Analysis of Schedule Risk using PROMETHEE (PROMETHEE 기법을 활용한 공정리스크 중요도 분석)

  • Lee, Jang-Young;Yoon, Yoo-Sang;Jang, Myung-Hoon;Suh, Sang-Wook
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.353-357
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    • 2008
  • The building construction projects include a variety of risk factors due to uncertainties. To succeed in the projects, it is important how risks are managed. Risk management processes identification, analysis and response. Especially, the analysis process is important to objectively identify importance and priority among risk factors. The purpose of this study is to develop the effective analysis process by studying and supplement the problem of the AHP analysis method. The study provides a analysis process to use the PROMETHEE analysis method proposed.

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A Study on the Analysis of the Risk Factors for Overseas Plant Construction Projects (해외 화공플랜트 건설사업 위험요인 영향도 분석)

  • Cho, Seung-Yeon;Kim, Young-Su
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2010.05b
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    • pp.103-108
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    • 2010
  • The purpose of this study is to analyze of the risk factors for oversea plants construction projects. For this study, risk factors data from related literature review, research organization and construction company was researched and classified under each EPC phases. In addition, a questionnaire survey by plant experts was conducted for analysis of risk weight and costs and time impact on each EPC phases. The results of this study are as follows: First, a detail design errors(engineering phase), a equipment procurement plan(procurement phase), and exchange rate fluctuations(construction phase) were analyzed the highest weight factors. Second, a financing plan(engineering phase), quantity take-off bill(procurement phase), and exchange rate fluctuations(construction phase) were analyzed the highest cost impact factors. Third, detail design errors(engineering phase), a equipment procurement plan(procurement phase), and schedule management errors(construction phase) were analyzed the highest time impact factors.

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A Development of Risk Performance Index for Mega-project Performance Measurement in view of the integrated Cost/Schedule/Risk (비용/공정/위험 통합 관점에서 메가 프로젝트 성과측정을 위한 위험성과지수 개발)

  • Kim, Seon-Gyoo;Park, Kyoo-Young;Yu, Young-Jeong
    • Korean Journal of Construction Engineering and Management
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    • v.10 no.1
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    • pp.69-77
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    • 2009
  • Recently, a research of the urban regeneration has been performed very actively. This is one of the efforts to resolve various social and economic problems coming from the existing deteriorated building and facilities by new urban development or redevelopment. However, an urban regeneration has a characteristic to be unable to ensure the project performance due to the exposed numerous risks coming from the various and complex stake-holders, and its mega sizes. This paper proposes the method of risk performance index in order to improve an efficiency of performance measurement expanding to the risk view point from the existing integrated cost/schedule performance measurement. A risk performance index is compatible with the existing EVMS, and can make the performance measurement in 3 dimensions of the integrated cost/schedule/risk with 18 sub-indexes and variables.

Multi-family Residential Construction Management Practice in the U.S.

  • Cho, Namho
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.1254-1254
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    • 2022
  • The Multi-family Residential is one of the most famous building types for a rental property in the US. Often times it includes multiple residential buildings and some amenity facilities, including a clubhouse or leasing office, swimming pool, dog park, and garages. Since the building type is built for rental purposes, the construction planning is phased and it makes the project complicated. Detailed planning and execution are important for successful construction management. This paper provides some management practices that are applied to one of the multi-family residential construction projects in Phoenix, AZ. The Front End Planning (FEP) process performed by both owner and contractor is the first key to a successful construction project. Specifically, the early review of phased turnover strategy, grading, fire/Americans with Disabilities Act (ADA) compliance, and Mechanical/ Electricity/Plumbing/Technology (MEPT) will provide absolute benefit to the project. Second, using a scheduling method to control short-term schedules and long-term can provide the ability to manage the issues with agility. Third, material delivery and procurement dominate the both project schedule and cost. With this COVID-19 circumstance, it is hard to expect the material, equipment, and labor forces to be delivered on time with the contracted price. Managing floats are more than important to managing construction productivity. Risk management should work to share the risks fairly. Lastly, turnover is directly linked with the profit of the project for both owner and contractor. The communication between the owner and contractor to re-schedule the proper turnover schedule is important for the phased construction project.

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A Study on the Application of Design VE Process in Pre-Construction Phase for GMP Determination of CM at Risk Project (시공책임형 CM 사업의 GMP 결정를 위한 시공이전단계 설계VE 프로세스 적용방안 도출)

  • Park, Bo-sung;Kim, Ok-kyue
    • Korean Journal of Construction Engineering and Management
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    • v.23 no.5
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    • pp.56-64
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    • 2022
  • Although pilot projects have been actively carried out from 2017 to present to institutionalize CM at Risk, one of the major tasks for innovation in the construction industry, standards and processes related to Design VE, a key tool for determining GMP in the pre-construction phase, have not yet been established. Therefore, through research and operation status related to CM at Risk and Design VE, and survey on project participants' perception, the problem of the existing design VE process was derived, and the design VE process suitable for the CM at Risk project was proposed. The application plan was proposed in three aspects: Schedule, Cycle, and Process, and the appropriateness and applicability were verified through FGI. The results of this study are expected to be used as basic data on the establishment and legislation of order standards to be made in the future.

Assessment of Risk Factors for Application of Exterior Insulation Board in Cast-in-place Concrete Form System for Apartment (공동주택용 외단열 동시타설 공법 적용을 위한 리스크 요인 평가)

  • Cui, Jun-Long;Kim, Taehoon;Lim, Hyunsu;Cho, Hunhee;Kang, Kyung-In
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2015.05a
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    • pp.204-205
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    • 2015
  • Exterior insulation board in cast-in-place concrete form system could reduce construction period and improve quality in apartment construction. However, the method is progressed with insulation and concrete frame works at the same time, then risk is increased in duration control and quality management. Therefore, this paper analyzed risk factors through FMEA method. We found that the key risk factors delaying schedule was insulation material that soaked in the rain and quality defects on the insulation material joint. Based on this research, the risk management approach should be developed for improvement of method activation.

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Improvement of Construction Process Control to Reduce Construction Risk (건설공사 공정관리이행의 리스크 감소를 위한 개선방안)

  • Park Hong-Tae;Son Chang Baek;Kang Leen Seok
    • Korean Journal of Construction Engineering and Management
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    • v.1 no.1 s.1
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    • pp.35-44
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    • 2000
  • The major objective of construction process control(CPC) is to provide construction managers with operational information that will help reduce project duration and save project cost. However, the CPC in Korea is being applied to construction projects with some basic problems such as the inconvenience of CPC S/Ws and the process control unconcerned with construction information classification system and computer system to integrate cost and schedule. This study analyzes the present condition of CPC including the basic problems, and then suggests the reform measures in technical and operational viewpoints to reduce construction risk. The focus of study is on the technical improvement for the application of construction information management system applicable to both cost estimating and schedule management.

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An Analysis of The Critical Risk Factors in Failure Cases of Lifting Equipment Plans in High-rise Construction Project (초고층 프로젝트 양중 계획의 실패 유형별 핵심 리스크 요인 분석)

  • Kim, Nam-Gyun;Kim, Yea-Sang
    • Korean Journal of Construction Engineering and Management
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    • v.14 no.4
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    • pp.73-83
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    • 2013
  • Recently, not only around Korea but also other countries shows a pattern of arising high-rise building construction project which was delayed or aborted during global economic crises and recession. Although the market starts to stretch, It is getting competitive to win a contract in high-rise construction project between contractors due to lack of competitive advantage especially to Korea contractors. To get that, Korean contractors needs lifting equipment plan. But currently, they depend on the empirical methods and that cause schedule delay, not controlled cost management problem. Therefore, this research is to improve the accuracy of Lifting plan by analyzing the current issues of Lifting plan system and deducing the types of failures with planning factors, as well as analyzing the impact on schedule and cost control and safety management by each failure mode. Also, by analyzing detail risk factors per Lifting Equipment with FMEA, to infer the critical risk factor on high-rise construction project.