scholarly journals PREDICTING THE SCHEDULE AND COST PERFORMANCE IN PUBLIC SCHOOL BUILDING PROJECTS IN TAIWAN

2021 ◽  
Vol 0 (0) ◽  
pp. 1-17
Author(s):  
Yi-Kai Juan ◽  
Ling-Er Liou
Keyword(s):  
Public School ◽  
Project Performance ◽  
School Building ◽  
Ministry Of Education ◽  
Accuracy Rate ◽  
Building Projects ◽  
Dynamic Tracking ◽  
Fuzzy Delphi ◽  
Cost Variability ◽  
Artificial Neural Network Ann

The Ministry of Education (MOE) of Taiwan invests about NTD 30 billion a year in Public School Building Projects (PSBPs). However, 95% of the PSBPs have been extended and have incurred increased costs. A PSBP performance evaluation and prediction system was established by using the Fuzzy Delphi Method (FDM), association rules and an Artificial Neural Network (ANN). Sixty-two Taiwanese PSBPs were used as the samples, while eleven high correlation factors that influence the project performance of PSBPs were defined, and the reasons leading to the poor project performance were discussed in this study. Moreover, the results of the test cases operated by ANN showed that the accuracy rate for schedule and cost variability predictions can reach 84%. The high accuracy rate indicated the reliability of priority control for high-risk projects in the future. The proposed approach can be provided to clients, design and construction firms, and project managers to understand the project performance in real time and to establish a dynamic tracking review and response measures for improving the overall project satisfaction.

scholarly journals Cost optimization for public school building projects during design stage using value engineering

2018 ◽  
Vol 162 ◽  
pp. 02033 ◽  
Author(s):  
Afrah Hassan ◽  
Majid Yahya
Keyword(s):  
Public School ◽  
Cost Optimization ◽  
Value Engineering ◽  
Design Stage ◽  
School Building ◽  
Environment Design ◽  
Building Projects ◽  
Energy And Environment ◽  
Building Components ◽  
Hierarchy Process

During the past ten years, various systems of building components have been applied in public school projects in Iraq, with no systematic method used for selection and evaluation, but only based on the designer’s experience. This paper displays evaluation and selection techniques based on value engineering methodology to find the optimal cost for school building projects in Iraq during design stage. The most important criteria for performance, constructability and sustainability criteria, which based on the Leadership in Energy and Environment Design used in this assessment were obtained from a survey of 49 professional designers and consultants, adoption of the Super Decisions Software Program, which uses analytical hierarchy process (AHP) for determining the relative importance of the main criteria and sub-criteria, that allows the decision-makers to evaluate the suitable alternatives of design for the external wall system in Iraq’s school buildings was built.

Probability of change orders and the effect on cost and schedule for new public school buildings

2019 ◽  
Vol 26 (6) ◽  
pp. 1087-1104 ◽  
Author(s):  
Pramen P. Shrestha ◽  
Kabindra Kumar Shrestha ◽  
Haileab B. Zeleke
Keyword(s):  
Public School ◽  
Statistical Tests ◽  
School Buildings ◽  
School Building ◽  
Change Orders ◽  
Building Projects ◽  
Content Type ◽  
New School ◽  
New Public ◽  
The Cost

Purpose Change orders (COs) adversely affect the cost and schedule of projects, specifically during the construction phase. COs of 95 new public school building projects contracted by the Clark County School District (CCSD) of Nevada were analyzed to quantify the cost and schedule growth as well as to determine the effect of COs on cost and schedule growth. The paper aims to discuss these issues. Design/methodology/approach The data were collected from CCSD through questionnaire survey. Descriptive statistics and statistical tests were conducted to determine the effect of COs on cost and schedule growth. Findings It was found that the average amount of COs as well as cost and schedule overruns were 5.9, 3.0 and 7.4 percent, respectively. Statistical tests showed that the amount of COs had an adverse effect on schedule growth; schedule overruns in projects with less than 4 percent COs were significantly lower than projects with more than 4 percent COs. Cost overruns did not significantly differ in those two types of projects. The primary contribution of this study is that it provides the tools and the framework for school district engineers to determine the probability of the occurrence of COs as well as the optimum percentage of COs for a minimum effect on cost and schedule growth of new public school buildings. Probability curves were also developed to determine the likelihood of the occurrence of COs, cost growth and schedule growth in these projects. These findings could be used by school districts to avoid or reduce COs in future projects, minimizing the effect on cost and schedule growth during the construction phase. Research limitations/implications The findings and the probabilities curves developed in this study should be used carefully in other cases. These data were specific to the owner, location and types of buildings and generalizing these findings may have negative consequences. Practical implications The practical implications are that this study could provide a tool to school building administrators to determine the probability of having COs as well as cost and schedule overruns and the effects of COs on cost and schedule overruns. To the authors’ best knowledge, no other studies of this type have been conducted previously. Social implications The social implication of this study is it will help to efficiently use the tax payers’ money while building new school buildings. Originality/value This study has collected the hard data of COs, cost and schedule data of CCSD new school building projects. Therefore, the data are from the projects completed by CCSD. So, the paper is written from the original data received from CCSD.

scholarly journals PENGGUNAAN STANDARD WBS (WORK BREAKDOWN STRUCTURE) PADA PROYEK BANGUNAN GEDUNG

2019 ◽  
Vol 5 (1) ◽  
pp. 29-34
Author(s):  
Ayu Herzanita
Keyword(s):  
Current Problem ◽  
Construction Project ◽  
Project Performance ◽  
Work Package ◽  
Building Projects ◽  
Work Breakdown Structure ◽  
Time Performance ◽  
The Cost ◽  
And Control ◽  
Method Approach

WBS (Work Breakdown Structure) plays an important role in every construction project. WBS is a hierarchy of decreasing scope of work to become the smallest level called a work package, making it easier in the process of project management and control. The current problem is that many contractors in Indonesia, both large and small contractors, do not understand the importance of using WBS in a construction project. This causes project performance to be less than optimal, especially on cost and time performance. Currently, WBS standards have been developed for building projects. In this study will look at the cost and time performance of the project from the use of WBS standard building. The sample used in this study are projects that have applied the use of project standards. The projects include Building X, Lecture Building Y, and Sports Facility Building Z. The method used in this study is the EVM (Earn Value Method) approach, collecting data using questionnaires. The results showed that using the WBS standard had an effect on cost and time performance. Good cost and time performance is shown in the Building X and Lecture Y buildings. While the cost and time performance of the Z Sports Facility Building tends to be unstable. This is because the work items that exist in the WBS standard are not in accordance with the project conditions, so it is necessary to adjust work items.

scholarly journals Investigation and Repair Work for the Cracking Damage due to Alkali-Aggregate Reaction in the Public School Building

1992 ◽  
Vol 30 (8) ◽  
pp. 28-38 ◽  
Author(s):  
S. Nishibayashi ◽  
K. Yamane ◽  
M. Shigeyoshi ◽  
H. Nakamura
Keyword(s):  
Public School ◽  
School Building ◽  
Repair Work ◽  
The Public ◽  
Alkali Aggregate Reaction

scholarly journals Causes of Errors in Construction Contract Documents in Southwestern, Nigeria

2017 ◽  
Vol 1 (2) ◽  
pp. 11-23
Author(s):  
Oluwaseun Dosumu ◽  
Godwin Idoro ◽  
Henry Onukwube
Keyword(s):  
Project Performance ◽  
Project Managers ◽  
Design Management ◽  
Southwestern Nigeria ◽  
Building Projects ◽  
Design Changes ◽  
Significant Difference ◽  
Causes Of Errors ◽  
Management Experience ◽  
Procurement Method

The issue of continual poor project performance in the construction industry remains unresolved and there is need for improvement. In view of improving project performance, the study aims at investigating the frequent causes of errors in construction contract documents. The survey research design and mixed research methods were used for the study. The respondents for the study consist of 86 consulting and 98 contracting firms that have been engaged on building projects that is above one floor between 2012 and 2015. Fifty one (51) interviews were also conducted on contractors, project managers and consultants on the projects they were involved and can equally provide necessary information for the study. Statistical Package for Social Sciences (SPSS 20) was used for the analysis of the study. The study found that the frequent causes of the errors in contract documents are frequent design changes by clients, lack of adequate time to prepare documents and design management experience among others. Based on the findings, it was concluded that the causes of errors in contract documents vary from one state to the other. It was also concluded that there is difference in the causes of errors in contract documents based on types of building, services rendered by construction organisations and states in South West, Nigeria. However, there is no significant difference in the causes of errors in contract documents based on procurement method except where there is incomplete documentation or contracting organisations have overlapping activities. The study recommends that the frequent errors identified should always be prevented from occurring if cost and time overrun are to be minimized. Also since most of the causes identified are related to consultants, it was recommended as suggested by interviewees that all designs must go through quality assurance process.Keywords: Building projects, Construction, Contract documents, Errors, project performance

Success criteria-based impacts of risk factors on education building projects in southwestern Nigeria

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Olufisayo Adewumi Adedokun ◽  
Temitope Egbelakin ◽  
Deborah Oluwafunke Adedokun ◽  
Johnson Adafin
Keyword(s):  
Risk Factors ◽  
Data Collection ◽  
User Satisfaction ◽  
Tertiary Education ◽  
High Reliability ◽  
Project Performance ◽  
Capital Outlay ◽  
Building Projects ◽  
Content Type ◽  
Design Construction

Purpose Despite the huge capital outlay in tertiary education building projects (TEBP), these projects undoubtedly failed in meeting the set objectives of cost, time and quality, among others. Therefore, rather than the impacts of risks on the overall project performance, which is common in the construction management literature, the purpose of this study is to assess the impacts of risk factors on the criteria for measuring the success of public TEBP. Design/methodology/approach The paper adopted a quantitative research method where the data collection was via a questionnaire survey. The researcher administered 452 questionnaires to the client representatives, consultants and contractors involved in building projects across five public tertiary education institutions in Ondo State, Nigeria. Of 452 questionnaires, 279 were retrieved and suitable for the analysis, translating to a 61.73% response rate. The reliability analysis of the research instrument showed 0.965 and 0.807, via Cronbach’s alpha test, indicating high reliability of the instrument used for data collection. Findings The study found different risk factors affecting the criteria for measuring the success of TEBP. For instance, the environmental risk factor significantly impacted completion to cost, while financial and political risk factors significantly impacted completion to time. In addition, while environmental, legal and management risks significantly impacted end-user satisfaction, safety performance was significantly impacted by logistic, legal, design, construction, political and management risks. Besides, the logistic, legal, design, construction, financial, political and management risk factors impacted profit. However, despite profit being one of the criteria for measuring the success of building projects, it recorded the highest risk impacts amounting to 41% variance. Research limitations/implications The findings are limited to the public tertiary education building projects procured via competitive tendering; therefore, the results might differ when considering other procurement methods. Practical implications The practical implication is that rather than focusing on all risk factors, the project stakeholders could give adequate attention to the significant risk factors impacting each of the parameters for measuring the success of education building projects. Originality/value The study revealed specific risk factors impacting the criteria for measuring the success of TEBP, which extend beyond the use of the overall project performance approach.

Using issue logs to improve construction project performance

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amirali Shalwani ◽  
Brian Lines
Keyword(s):  
Best Practice ◽  
Management Practices ◽  
Construction Project ◽  
Pairwise Comparison ◽  
Performance Outcomes ◽  
Project Performance ◽  
Project Teams ◽  
Project Schedule ◽  
Building Projects ◽  
Content Type

PurposeThe Project Management Body of Knowledge recommends the use of issue logs as a best practice to minimize the potential project cost and schedule growth. Although the broader topic of project control has been widely studied in the construction literature, the specific application of issue logs has remained relatively understudied. This study aims to analyze the extent and consistency with which construction teams utilize issue logs and the corresponding project performance outcomes.Design/methodology/approachA dataset of 5,635 individual issues was gathered from the final issue logs of 881 small building projects delivered via the design–bid–build method. Differences between groups were determined using the Kruskal–Wallis H test with post hoc testing via the Mann–Whitney U test with pairwise comparison.FindingsThe results showed that, on average, project teams who used issue logs to a greater extent achieved a 3.1 to 4.3% reduction in cost growth and a 5.3 to 12.3% reduction in schedule growth. This result shows that issue logs can be used to improve construction project performance in the areas of cost and schedule.Originality/valueThis result provides a contribution to practitioners, wherein project teams should be encouraged to establish their issue management practices early in the project schedule to encourage greater issue log usage for the remainder of the project.

Integrating the production and the erection processes of pre-fabricated steel frames in building projects using phased lean management

2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Gholamreza Heravi ◽  
Majid Fazeli Kebria ◽  
Milad Rostami
Keyword(s):  
Continuous Flow ◽  
Discrete Event ◽  
Steel Frames ◽  
Project Performance ◽  
Expected Improvement ◽  
Value Stream Mapping ◽  
Valuable Insight ◽  
Lean Management ◽  
Building Projects ◽  
Content Type

Purpose The purpose of this paper is to investigate the effects of implementing value stream mapping (VSM), just in time (JIT), continuous flow and total productive maintenance (TPM) methods throughout production and erection processes of pre-fabricated steel frames (PSFs) of building projects. Design/methodology/approach As phased lean management, after implementing the VSM technique, the JIT technique is implemented as first lean phase and the TPM and the continuous flow techniques are implemented as second lean phase. To evaluate the expected improvement of project performance due to reduce wastes by implementing lean techniques, discrete event simulation (DES) is utilized. In this research, an eight-story residential building project in Tehran, Iran, is studied. Findings Simultaneous use of lean techniques to integrate production and erection processes of PSFs leads to the improvement of the performance of production and erection stages, significantly. The results indicate 43 and 17 percent reduction in PSFs production and erection processes time and cost, respectively. Research limitations/implications In the present study, only the effects of implementing lean techniques on the production and erection of PSFs have been evaluated. However, it is also possible to apply these lean approaches and the key strategies to the other modular or pre-fabricated construction methods. Originality/value The main contribution to knowledge is improving the construction project performance by integrating the production and erection processes, using phased lean management through implementing lean techniques. The results of the current study provide valuable insight into the possibility of integrating and improving construction processes of pre-fabricated construction.

PERFORMANCE OF REQUEST FOR INFORMATION (RFI) MANAGEMENT

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Muhamad Abduh ◽  
Farrel Adam
Keyword(s):  
Construction Projects ◽  
Construction Project ◽  
Project Performance ◽  
The Other ◽  
Joint Operation ◽  
Building Projects ◽  
Language And Culture ◽  
Communication Problem ◽  
Other Hand ◽  
International Joint

Request for information (RFI) is considered as one of the important administrative tools in construction projects. It can be used as an indicator on how well the coordination between parties, especially between contractors and engineers and/or supervisors, performed in a project. Delays in a construction project could be identified by analyzing the RFI documents, but on the other hand, they could also be caused by poor administrative in handling the RFI documents and by delays in processing RFIs. This paper reviews the performance of four building projects in handling their RFI documents. The four buildings were constructed by a national joint-operation contractor, designed and supervised by an international joint-operation consultant. The RFI responses and wok-in-process were used to measure the project’s performance in handling the RFI documents; from the contractor’s and the engineer’s point of views. The analysis results show that the engineer had been very responsive in processing RFIs, while the contractor had difficulties. In general, the contractor was lack of capable personnel in handling RFIs for all four buildings. Moreover, communication problem was the key of the project’s performance due to different language and culture. The authors believed that the results of the analysis would influence to the overall project performance.

Sign in / Sign up

Export Citation Format

Share Document