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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Construction Engineering and Project Management
Journal Basic Information
Journal DOI :
Korean Institute Of Construction Engineering and Management
Editor in Chief :
Samuel Ariaratnam / Hong Tae-hoon
Volume & Issues
Volume 2, Issue 4 - Dec 2012
Volume 2, Issue 3 - Sep 2012
Volume 2, Issue 2 - Jun 2012
Volume 2, Issue 1 - Mar 2012
Selecting the target year
Structure-From-Motion Approach to the Reconstruction of Surfaces for Earthwork Planning
Nassar, Khaled ; Jung, Young-Han ;
Journal of Construction Engineering and Project Management, volume 2, issue 3, 2012, Pages 1~7
DOI : 10.6106/JCEPM.2012.2.3.001
The reconstruction of surfaces from unorganized point clouds can provide very useful information for construction managers. Although point clouds are generally created using 3D scanners, they can also be generated via the structure-from-motion technique using a sequence of images. Here we report a novel surface reconstruction technique for modeling and quantifying earthworks that can be used for preliminary planning, project updates and estimating of earthwork quantities, as well as embedded planning systems in construction equipment. The application of structure-from-motion techniques in earth works is examined and its advantages and limitations identified. Data from 23 earthwork excavation construction sites were collected and analyzed. 3D surface reconstructions during the construction phase were compared to the original land form. Similar experiments were conducted with piles of earth and the results analyzed to determine appropriate ranges of use for structure-from-motion surface reconstructions in earthwork applications. The technique was found to be most suited to pile of materials with volumes less than 2000 m3. Piles up to 10 m in height and with base areas up to
were also successfully reconstructed. These results should be of interest to contractors seeking to utilize new technology to optimize operational efficiency.
Analysis of the Changes in the Perceived Important Capabilities of Construction Project Managers after the Global Financial Crisis
Lee, Na-Kyung ; Bae, Ju-Lee ; Jang, Hyoun-Seung ;
Journal of Construction Engineering and Project Management, volume 2, issue 3, 2012, Pages 8~16
DOI : 10.6106/JCEPM.2012.2.3.008
After the 2008 global financial crisis, the construction environment in South Korea continued change in the construction environment. Construction orders in 2011 have shown a downward trend compared with the previous year. Along with these changes in the construction market, the professional capabilities of construction project managers that are perceived as important also changed after the global financial crisis. Accordingly, this study was conducted to identify the major business capabilities of the current construction project managers and to determine which of these capabilities have undergone changes in terms of the importance accorded to them after the global financial crisis, and ultimately, to derive the construction project manager capability areas that need to be strengthened according to the changes in the construction environment. The capabilities of construction project managers were surveyed at two different time points: in 2007 and in 2010. The results show that the year 2010, after the global financial crisis, an increase in the perceived important capabilities of construction project managers compared with 2007. This results the impact of the changes in the construction environment on the importance of construction project managers. This study derived the ramifications of the early identification of systems and prospects according to the changes in the construction circumstances on more efficient onsite and human resources management, by considering the appropriate capabilities of the construction project managers.
Development of a methodology for analysing and quantifying the impact of delay factors affecting construction projects
Shebob, Abdulhamid ; Dawood, Nashwan ; Shah, Raj K. ;
Journal of Construction Engineering and Project Management, volume 2, issue 3, 2012, Pages 17~29
DOI : 10.6106/JCEPM.2012.2.3.017
Delays are one of the biggest problems facing by the construction industry and they have significant financial and social impact in construction projects. The paper presents a framework of Delay Analysis System (DAS) with the aim of analysing the impact of delay factors in Libyan construction projects. The system has designed by integrating the possible delay factors, critical activities of a project using@risk simulator. A case study of building project was demonstrated to identify the impact of delays and the sensitivity of delay factor. The case study result showed that the project might be delayed by 97 to 103 days in comparison to the planned duration. The developed DAS is a tool for analysing and identify the impacts of delay factors and assist to construction manager to take necessary measure in reducing the delay impact. The paper provides a methodology for analysing the possible delay impact in a construction project and informing to construction manager in advance of the possible delay factors.
Critical Success Factors of Large Design-Build Projects in Vietnam
Dang, Chau Ngoc ; Le-Hoai, Long ; Lee, Young-Dai ;
Journal of Construction Engineering and Project Management, volume 2, issue 3, 2012, Pages 30~39
DOI : 10.6106/JCEPM.2012.2.3.030
Design-build (D&B) has been broadly perceived as an effective project delivery method and become popular in the world. However, the implementation process of this innovative procurement method in Vietnam encounters difficulties due mainly to unfamiliarity and inexperience with the approach. Critical success factors (CSFs) which could be used to enhance the project execution are useful to practitioners in Vietnam if identified. A questionnaire survey was employed to identify CSFs of D&B projects in Vietnam. Parties' competence, especially financial capability, and contract documentation are the most important factors significantly affecting project success. It was also shown that the perspectives of two principal parties in D&B projects on the CSFs are statistically correlated. The identified CSFs were then validated with some various D&B projects. The execution results of CSFs' were compared with the projects' performance measured try key performance indicators (KPIs). The most important success factors of this study were also compared with other countries'. The validation and comparison results provide project participants with some useful information to perform D&B projects better. Practitioners should well perform the identified CSFs to enhance the chance of the success of D&B projects in Vietnam. The findings of this study are useful not only to Vietnamese practitioners but also to others who are concerned about D&B method and plan to employ it in Vietnam in future.
Evaluation of Building Construction Management in Sylhet City, Bangladesh
Anamul, Hasan Md. ;
Journal of Construction Engineering and Project Management, volume 2, issue 3, 2012, Pages 40~47
DOI : 10.6106/JCEPM.2012.2.3.040
Construction management is essential for a achieving any pre-determined objective. It is however seen that in spite of construction management, majority of the project do not keep up their original time schedule and their completion cost is also higher as compared with the estimated cost The main reason for overrun in time and cost is that the planning at the outset of the project was not adequate or method of planning was not a refined one. In this research work, I showed the overall conditions of construction work and management in Sylhet city of Bangladesh and found many drawbacks in the construction management after completing my research. I found several factors affecting proper construction management and I have provided brief results. I have also provided some recommendations after my research work.
Construction Safety Management Framework based on Smart Mobile
Park, Moon-Seo ; Kim, Eui-Jun ; Lee, Hyoo-Soo ; Lee, Kwang-Pyo ;
Journal of Construction Engineering and Project Management, volume 2, issue 3, 2012, Pages 48~57
DOI : 10.6106/JCEPM.2012.2.3.048
With increasing number of serious construction disasters such as death, a safety management in real-time is more required recently. One of the ways to support the needs, a convergence with Information Technology (IT) has been noticed. Although number of inefficiencies including a limitation of IT equipment (weight, control inconveniences) has been concerned, data exchanging and processing fields have been improved at a wide range with an advance of mobile communication and an introduction of smart mobiles that are simple and convenient. In this research, a framework is realized in connection with smart mobile to find the problems of current safety management and derive demands in order to support effective safety management. Two smart mobile applications, Safety Management application and Safety Guideline application, enable a real-time safety management and less re-work by provided safety information.