Time Performance Of Construction Projects Research Articles

Analisa Pengaruh Tingkat Penerapan BIM 5D Terhadap Kinerja Waktu Proyek Konstruksi

In construction, risks are usually requests for additional time, cost, or quality of work. Disputes will occur If risks are not resolved properly. In the industrial revolution 4.0, we can use the Building Information Modeling (BIM) method to increase efficiency. BIM is a digital display that contains all information about building elements integrated with the building's life cycle period. BIM will optimize the performance of construction projects. In Indonesia, several consultants/contractors have implemented BIM in construction projects. This study aims to determine and analyze what factors in the process of implementing BIM 5D that affect the performance of construction project time. The research method used is descriptive research method with the Q-method approach using closed survey research instruments to 53 contractor/consultant respondents using BIM. The results obtained from the 5D BIM indicators have 3 effects on the time performance of construction projects.

Evaluation of Effects of Unethical Practices on Cost and Time Performance of Construction Projects in Tertiary Institutions in Edo State, Nigeria

Purpose: Unethical practices in the construction sector have dire consequences for effective delivery of projects and trickling down to the poor performance of construction projects. This research evaluated the effects of unethical practices on cost and time performance of construction projects in tertiary institutions in Edo State, Nigeria.
 Materials and methods: Respondents were drawn from a public tertiary institution in the State, which was the focus of the study. The study adopted a mixed method design of quantitative and qualitative approaches. 30 questionnaires were self-administered by census on identified human samples. Thereafter, semi-structured interview questions were used purposively to elicit relevant information from 5 targeted participants to validate the data received. The data received were analyzed using regression analysis and paired samples t- test. Microsoft Excel and Statistical Package for Social Sciences (SPSS) version 23 was used to carry out the analyses.
 Findings: It was established that there was a significant relationship between unethical practices and project performance. It was also established that the projects performed well in terms of costs but performed poorly in terms of time.
 Implications to Theory, Practice and Policy: The study further established that the predominant effect of unethical practices on performance of tertiary institution projects in Edo State is time-overrun.

Project Meeting and Guidelines: The Impact on Time Performance of Construction Projects in Malaysia

Project Meeting and Guidelines: The Impact on Time Performance of Construction Projects in Malaysia

تأثير عوامل التحفيز على أداء المشروع في مشاريع البناء في اليمن

Human factors seem to be not highly respected in construction projects in Yemen. Construction project managers and contractors focus on the technical skills of project key individuals. However, less attention is paid to their capabilities of managing project people. This study is to identify motivation factors that most significantly influence construction project performance. The data were collected through a questionnaire from 91 construction project team members representing 18 project teams executed by 18 first-class construction companies in Yemen. The relative importance index (RII) was determined the most significant motivation factors. In addition, multiple regression analysis used to find the influence of motivation factors. The top motivational factors ranked by companies’ managements were; (1) relationship with colleagues, (2) advancement, (3) work itself, and (4) achievement. Among the 10 motivational factors investigated, only three motivational factors- achievement, appreciation and relationship with colleagues significantly influence the time performance of construction projects.The findings imply that the time performance of construction projects will be improved if motivation factors are properly applied in construction project environment. The study recommended proper handling of motivation factors which are a part of human factors for achieving improved project time performance.

Impact of project briefing clarity on construction project performance

Defining a clear project brief at an early stage is critical for the project success. A lack of project brief clarity can cause design and construction changes or errors throughout project delivery, which ultimately leads to project time and cost overruns. This research proposes a dynamic simulation model to evaluate the overall impact of briefing on cost and time performance of construction projects. The causal feedback loop model portraying the impact of briefing on project cost and time performance is developed. The interrelationships that exist among the influencing factors incorporated into the stock and flow model of the project briefing. Then, the proposed model is applied in a road project to assess its applicability and performance. The results indicate that a clear project brief aid in reducing brief changes, design changes, and construction changes throughout project delivery, which can ultimately improve project cost and time performance. Despite the fact that the clear brief increases required budget and duration for the project briefing, it still represents good value to the project cost and time performance overall.

Assessment of Cost and Extent of Delays in Public Sector Construction Projects in Aseer Region, KSA

The time performance of projects i.e. delay of construction projects is considered as one of the alarming problems around the world that has passive effect on the society development as well as on the country economy. The time performance of construction projects varies with country, region, project type and the perspectives of various stakeholders. The purpose of the paper is to know the extent of delay in the government sector projects in Aseer region, KSA and identifying whether the delay extent is natural or large compared to other areas. A total number of 228 public sector construction projects awarded in one decade have considered for the study purpose. The methodology for the project delays studies is as follows, collection of projects information from the main sources, classifying them according to the project size limits, analyzing the available data, knowing the delay size in every sector and comparing the delays of the different projects to identify the most delayed projects as well as those completed on time. Analysis of delays shows that the majority of construction projects in the Aseer region have exceeded their time and the most significant delay among government sectors was the Directorate-General for Health Affairs. The extent of delay in construction project decreases with the progress of country.

Risk factors influencing the building projects in Pakistan: from perspective of contractors, clients and consultants

Risk management in construction projects is an important process to achieve the project objectives in terms of cost, quality and time. Construction projects faces delays, cost overrun and quality defects due to avoidance of risk factors by contractors, clients and consultants. So the present study aims to investigate the risk factors that influence project objectives namely cost, quality and time of building construction projects in Pakistan from perspective of contractors, clients, and consultants. Risk factors were selected from literature survey and were finalized after consultation with construction experts. A questionnaire survey was prepared and various construction professionals were approached for feedback. Based on feedback of 164 experts, collected data was analysed statistically and were ranked based on relative importance index. As per the survey results, inadequate project management is the most critical factor effecting time performance of construction projects, rework due to error effect cost performance, and poor supervision effect quality of construction projects. Additionally, the study will help in planning and monitoring stages of the projects and shall improve the performance of construction industry of Pakistan.

Quantitative appraisal of cost and time performance of construction projects in public and private universities in Osun State, Nigeria

PurposeThe purpose of this paper is to compare the cost and time performance of construction projects in public and private universities in Osun State, Nigeria.Design/methodology/approachPurposive sampling technique was adopted to select four universities (two public and two private) used for the study. Archival data on 40 completed construction projects (ten from each university) was used in the study. Data were analysed with percentile and t-test.FindingsThe study showed that only 35 per cent of the construction projects in public and 10 per cent of those in private universities were completed at the estimated cost. There were no construction projects completed within the planned time in public universities, but 20 per cent were completed within the planned time in private universities. The t-test showed there is no significant difference in performance of construction projects in public and private universities in Nigeria. The study concluded that time performance of public and private universities in Nigeria was still below acceptable international best practices.Research limitations/implicationsThe findings of this study are limited to universities’ construction projects and may be of little application to other construction projects outside university settings.Practical implicationsIt is recommended that construction stakeholders be more proactive in ensuring that significant improvement is achieved in cost and time performance of construction projects both in public and private universities; the clients need to be more detailed in their briefs and requirements, the designers (architects and engineers) need to be more precise and avoid varying their designs, the quantity surveyors should use their professional competency in cost engineering adequately and the contractor should avoid spurious claims that result in increase in construction cost and time so that performance of construction projects can be improved.Originality/valueThe study is an attempt to compare cost and time performance of construction projects in public and private universities in Osun State, Nigeria.

Managing Refurbishment Projects Through Selection of Procurement System: The Case of Malaysia

The type of procurement method determines how the project would be managed. This is because project uncertainty could be found in the way that projects are awarded and how the construction project is managed into a system of contract. Procurement methods also influenced the time performance of construction projects. Time would be affected by the flow of project that was driven by different type of procurement method. However, it’s still inconclusive to what extent that different types of procurement systems could affect the performance of refurbishment projects. This study conducted to identify types of procurement methods used in Malaysian refurbishment projects and what are the problems and difficulties encountered by contractor using different types of procurement systems. On top of that, the study also would examine relationship between challenges encountered by contractors using different types of procurements towards refurbishment projects performance. Triangulation technique was used in the study. 316 sets of closedended questionnaires were obtained from targeted respondents which included site agents, project engineer, contract administrator, contract manager and project manager who were working in various construction companies. From the questionnaire sent out, 268 questionnaires were found to be useful for data analysis, giving a final response percentage of 24.53%. Semi-structured interview has been carried out with 15 contractors to validate the result. The findings shown that 54.3% of the projects were used traditional procurement systems, 39.9% using design and build, 4.3% using management procurement, 1.1% of the refurbishment project using turnkey system and 0.3% using built-operate-transfer (BOT) system. Refurbishment projects using traditional procurement systems were performing well compared to the others. Besides, out of seven contractor challenges variables (independent) which are cash flow and financial, communication with client and consultants, client decision making, frequent change order by client, insufficient or discrepancies of contract documents, material price escalation and skill, expertise and experience tested were significantly correlated with at least one performance variable (dependent). The findings would be useful for future references, especially to those stakeholders who involved in refurbishment projects in Malaysia. Keywords: Malaysia, Procurement system, Performance, Refurbishment

The impact of contractors' management capability on cost and time performance of construction projects in Nigeria

PurposeManagement capability is one of the major criteria for evaluating construction contractors during prequalification and tender evaluation This paper aims to investigate the impact of contractors' management capability as a prequalification criterion on cost and time performance of selected building projects.Design/methodology/approachPrequalification assessments of management capability of wining contractors as well as cost data relating to 77 completed building projects executed between 2004 and 2007 are obtained. The data obtained from a questionnaire and archival data are analyzed using one‐way analysis of variance and multiple regression.FindingsThe results reveal that contractors' management capability has significant impact on cost and time performance of building projects as evidenced by p‐values of 0.042 and 0.039, respectively.Practical implicationsThe research could be of significant benefit at the research implementation stage of public procurement practice especially in relation to the construction industry in Nigeria. Construction practitioners involved in prequalification and tender evaluation should continue to seek relevant information relating to management capability from the candidate contractors during prequalification and tender evaluation.Originality/valueModels capable of predicting the final cost and duration of building projects are eventually derived based on prequalification assessment of contractors on management capability, proposed contract duration and the initial contract figure. The goodness of fit of the models as defined by the value of R2 is found to be 96.2 percent and 90.01 percent for cost and time, respectively; thus signifying high predictive efficacy of the models.

The Time Performance of Construction Projects

This paper reviews research into the variables influencing the time taken to design and build construction projects. It examines various aspects of the organisation and management of the building team and the building process and looks at case study results comparing performance of various organisational forms. It concludes that success, in particular shorter project time, is achievable and that this is due to a combination of variables rather than the product of any one system.