scholarly journals Data Analytics Application for Non-Conformance Reports in a Cabinet Manufacturing Facility

2019 ◽  
pp. 341-348
Author(s):  
Osama Mohsen ◽  
Yasser Mohamed ◽  
Mohamed Al-Hussein
Keyword(s):  
Data Analytics ◽  
Construction Projects ◽  
Systematic Approach ◽  
Building Construction ◽  
Instance Selection ◽  
Modular Construction ◽  
Manufacturing Facility ◽  
Building Components ◽  
Processing Techniques ◽  
The Impact

Industrialization of building construction through offsite construction and modularization is an effective approach for improving performance of construction projects. In a modular construction approach, building components are produced in a well-controlled factory environment. The components are then delivered to site, in sequence, for installation by site crews. This process reduces construction waste, improves product quality, and minimizes onsite safety incidents. As the market conditions are rapidly changing, the demand for more customized and unique products is increasing. Customers increasingly demand customized dwellings to reflect their cultural tastes and personal preferences. Cabinets in the house, kitchen or otherwise, are building components that constitute a large portion of the visible customization that customers are interested in. This paper focuses on the analysis of records in Non-Conformance Reports (NCRs) at a cabinet manufacturing facility in Alberta, Canada. An NCR record represents a defect in any product that needs a repair or rework; it captures several attributes of the defective part, such as the job number, wood species, stain, the date and time when the record is created, etc. The systematic approach presented in this study employs data analytics to the collection, cleaning, and analysis of the NCR dataset. The dataset is first analyzed as per existing operations. Various data pre-processing techniques, including attribute and instance selection and transformation, are then applied to clean the dataset. The results show that most of the “Rework” results from administrative or product handling errors, while the majority of “Repairs” result from product finishing errors. The impact of repairing the defective parts is discussed, and recommendations to reduce the number of NCRs and thereby enhance the performance of operations are presented.

scholarly journals An assessment of cost escalation in building construction project

2021 ◽  
Vol 39 (4) ◽  
pp. 1029-1034
Author(s):  
A. Nazif ◽  
A.K. Mustapha ◽  
F. Sani
Keyword(s):  
Construction Projects ◽  
Building Construction ◽  
Project Cost ◽  
Mean Values ◽  
Design Error ◽  
Project Construction ◽  
Effective Cost ◽  
Building Project ◽  
The Impact ◽  
The Relationship

Estimating of cost for building construction projects with minimum error at the conceptual stage of project development is quite  essential for planning. This study seeks to evaluate factors responsible for cost escalation of building construction projects.  Questionnaires were administered to examine and assess these factors. Subsequently, the mean score value of each factor was determined. In addition, Correlation and Linear regression analyses were used to establish the relationship between these factors. Factors responsible for cost escalation in projects were examined as well as the impact of those factors, and occurrence of those factors on project cost. The result of the analysis showed that, the most agreed factors responsible for project cost escalation were; inadequate supervision, irregular payment, and design error, having high mean values of 4.25, 4.20, and 4.15, respectively. Also, correlation analysis result established that the factors responsible for cost escalation and the impact of cost escalation had significant R and R2 of 0.81 and 0.70 respectively. Addressing these factors would go a long way in reducing the escalation of building project cost. Never the less, an effective cost management strategy is absolutely necessary to safeguard and sustain the construction  industry. Keywords: cost escalation, building project, construction, regression analysis

scholarly journals Analysis of Formwork System Selection Criteria for Building Construction Projects: A Comparative Study

Buildings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 618
Author(s):  
Taylan Terzioglu ◽  
Gul Polat ◽  
Harun Turkoglu
Keyword(s):  
Construction Projects ◽  
Selection Criteria ◽  
Selection Process ◽  
Structural Parameters ◽  
Project Managers ◽  
Building Construction ◽  
Management Service ◽  
Score Analysis ◽  
System Selection ◽  
The Impact

The formwork system (FWS) in reinforced concrete (RC) construction is a critical component. The appropriate FWS is selected based on a number of conflicting and compromising criteria, and the selection of the FWS is carried out by construction professionals with different technical and/or administrative backgrounds. The perspectives and perceptions of construction professionals and companies involved in the FWS selection process may vary depending on their motives. In addition, some building structural parameters may have a significant impact on the FWS selection criteria. Most of the former studies investigated the FWS selection criteria from only the perspective of contractors and neglected the potential differences in the perspectives and perceptions of different construction professionals (i.e., owners (CO), project managers (PM), construction managers (CM), site engineers (SE), planning engineers (PL), procurement engineers (PR), technical office engineers (TO), and formwork design and/or formwork sales engineers (FD/FSL)) and companies specialized in different fields (i.e., project management service (PMS), engineering and design (ENG/DSG), formwork and scaffolding (FW/SCF), and general and/or sub-contractor (GC/SC)) regarding this issue. Moreover, the impact of building structural parameters on the FWS selection criteria has not been investigated. This study aims to fill this knowledge gap through analysing the FWS selection criteria for building construction projects while comparing the perspectives and perceptions of different groups of construction professionals and companies and investigating how FWS selection criteria are affected by the building structural parameters. Based on a comprehensive literature review, 35 FWS selection criteria were identified and a questionnaire was developed. The questionnaire data obtained from 222 Turkish construction professionals were statistically analysed using mean score analysis, the Kruskal–Wallis test, and the Mann–Whitney U test. According to the study’s findings, the FD/FSL group presented significant statistical differences regarding the FWS selection criteria as compared to the CO, PM/CM/SE, and PL/PR/TO groups. Moreover, the total area of building construction and total building height significantly affected the FWS selection criteria. This study serves to underscore the perspectives of various groups of construction professionals and the critical connection between the structural parameters and FWS selection criteria. The findings of this study may guide construction professionals to select the appropriate FWS for their building construction projects.

Incorporating aleatory and epistemic uncertainties in the modelling of construction duration

2020 ◽  
Vol 27 (9) ◽  
pp. 2199-2219
Author(s):  
Hassan Adaviriku Ahmadu ◽  
Ahmed Doko Ibrahim ◽  
Yahaya Makarfi Ibrahim ◽  
Kulomri Jipato Adogbo
Keyword(s):  
Construction Projects ◽  
Bayesian Model Averaging ◽  
Predictive Accuracy ◽  
Tertiary Education ◽  
Model Averaging ◽  
Building Construction ◽  
Percentage Error ◽  
Content Type ◽  
The Impact ◽  
Matlab Programming

PurposeThis study aims to develop a model which incorporates the impact of both aleatory and epistemic uncertainties into construction duration predictions, in a manner that is consistent with the nature/quality of information available about various factors which bring about uncertainties.Design/methodology/approachData relating to 178 completed Tertiary Education Trust Fund (TETfund) building construction projects were obtained from construction firms via questionnaire survey. Using 90% of the data, the model was developed in the form of a hybrid-based algorithm implemented through a suitable user-friendly graphical user interface (GUI) using MATLAB programming language. Bayesian model averaging, Monte Carlo simulation and fuzzy logic were the statistical methods used for the algorithm development, prior to its GUI implementation in MATLAB. Using the remaining 10% data, the model's predictive accuracy was assessed via the independent samples t-test and the mean absolute percentage error (MAPE).FindingsThe developed model's predictions were found not statistically different from those of actual duration estimates in the 10% test data, with a MAPE of just 2%. This suggests that the model's ability to incorporate both aleatory and epistemic uncertainties improves accuracy of duration predictions made using it.Research limitations/implicationsThe model was developed using a particular type of building projects (TETfund building construction projects), and so its use is limited to projects with characteristics similar to those used for its development.Practical implicationsThe developed model's predictions are expected to serve as a useful basis for consultancy firms and contractor organisations to make more realistic schedules and benchmark measures of construction period, thereby facilitating effective planning and successful execution of construction projects.Originality/valueThe study presented a model which permits combined manipulation of aleatory and epistemic uncertainties, hence ensuring a more realistic incorporation of uncertainty into construction duration predictions.

scholarly journals Impact of management practices on construction productivity in Indian building construction projects: an empirical study1

2021 ◽  
Vol 13 (1) ◽  
pp. 2383-2390
Author(s):  
Saurav Dixit
Keyword(s):  
Construction Projects ◽  
Quantitative Research ◽  
Management Practices ◽  
Management Practice ◽  
Relative Weight ◽  
Weighted Average ◽  
Building Construction ◽  
Average Score ◽  
Construction Productivity ◽  
The Impact

Abstract The objective of this study is to analyse the impact of management practices on the productivity of building construction projects in India. The methodology adopted for this study is to identify and analyse the management practice attributes from the literature review and expert focus group interviews. The identified attributes were analysed and priorities using relative weight were given by the respondents. The collected data were further analysed using SPSS 21 software. The quantitative research methodology was adopted to analyse the collected data and the following tools and techniques were applied to the data: reliability analysis to check the consistency of data collected for this study and relative importance index (RII) to prioritise and rank the attributes based on the weighted average score given by the respondents. The findings of this study concluded that coordination between all stakeholders, ability to handle the crisis by the project managers, social skills of key team managers, timely payment of completed works and design capability and frequent design changes are the most significant attributes of management practice, affecting construction productivity and having a rating on the RII of 0.91, 0.90, 0.88, 0.87 and 0.87.

AUTOMATION OF A STEEL WALL FRAMING ASSEMBLY

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Edgar Tamayo ◽  
Michael Bardwell ◽  
Ahmed Qureshi ◽  
Mohamed Al-Hussein
Keyword(s):  
Steel Structure ◽  
Cost Effective ◽  
Building Construction ◽  
Programmable Logic ◽  
Construction Site ◽  
Modular Construction ◽  
Automated Assembly ◽  
High Demand ◽  
Building Components ◽  
Electrical Installation

Modular construction has become increasingly popular in North America in recent years. In this emerging paradigm of building construction, building components are manufactured off site and then transported to the construction site for assembly. In Canada, automated modular steel structure fabrication is in high demand. Offsite manufacturing of steel wall frames for residential and commercial buildings provides timesaving and improvement of working conditions and morale that translates to improved productivity and safety performance. This paper demonstrates the feasibility of efficiently fabricating steel wall frames for offsite modular construction using automated assembly controlled by a Programmable Logic Controller (PLC) and connected in a cost-effective and efficient electrical installation and centralized communication by Fieldbus technology. In particular, this paper describes the control strategy used to automate a steel wall framing assembly that incorporates a PLC and Fieldbus technology.

scholarly journals Analysis of Cost of Rework on Time and Cost Performance of Building Construction Projects in Abuja, Nigeria

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Emmanuel Chidiebere Eze ◽  
John Ebhohimen Idiake
Keyword(s):  
Significant Relationship ◽  
Construction Projects ◽  
Building Construction ◽  
P Value ◽  
Delivery Time ◽  
Cost Performance ◽  
Project Cost ◽  
Final Project ◽  
The Cost ◽  
The Impact

Rework is a menace that leads to undesired and unnecessary loss of efforts, it degrades project cost and schedule performance of construction projects, both at design and construction phases. This study therefore, analyzed the impact of cost of rework on time and cost performance of building construction projects in Nigerian, using selected commercial building project within the country’s capital. A pro forma was adopted for gathering data on rework cost, project cost and time of selected building projects, while structured questionnaire was used to collect information on the likely measures for reducing rework incidences from construction professionals that were involved in the delivery of the identified projects. Regression analysis, relative importance index and Kruskal-Walis test were employed for data analysis. The study revealed a significant relationship between the cost of rework and initial and final project cost of delivering commercial buildings, as an average of 3.53% impact on the initial project cost, 46.60% contribution to cost overrun, and p-value of 0.000 was observed on all assessed projects. For the project delivery time, a significant relationship between the cost of rework and initial and final project duration, as an average of 7.35% impact on the initial delivery time, extra 19 days and p-value of 0.000 was observed on all assessed projects. Team building and education, management commitment, employee involvement, were some of the best possible measures to minimized rework problems.

scholarly journals Impacts Of Environment On Building Construction Projects On Woliata Sodo Town

2022 ◽  
Vol 24 (1) ◽  
pp. 93-104
Author(s):  
Wudnesh Honja Angeloa ◽  
Keyword(s):  
Environmental Impacts ◽  
Environmental Conditions ◽  
Construction Projects ◽  
Construction Material ◽  
Research Result ◽  
Productivity Loss ◽  
Construction Materials ◽  
Building Construction ◽  
Development Economic ◽  
The Impact

The environmental impacts have become a series of problems in today’s construction environments. Environmental conditions can have an adverse impact on the duration, cost, and quality of construction activities. This study is conducted to describe and point out the impact of the environment on building construction projects in sodo town. The contractor can estimate the Productivity loss due to the impact of environment on construction activity can be either partial or complete: partial loss is generally attributed to reduced labor productivity and work stoppage which interrupt those activities. This study organized by using questioners. The research basically focused on identifying and quantifying different environmental impacts that can affect the construction progresses. As the research result the escalation of construction material price, the availability of construction materials around the area and the involvement of different construction parties and the climatic condition of the environments are the main findings that we have got from our analysis. Generally, this research guides to meet future demands for sustainable environmental development, economic development, expansion of different construction infrastructure for sodo town. Many contractors found in this area fall over different environmental challenges. So to overcome these problems, are some requirements expected from different parties. To minimize those environmental impacts the construction parties should make a detail feasible study about the overall environmental conditions of sodo town before they decided to start up any construction works.

scholarly journals Pengaruh Belanja Infrastruktur terhadap Pertumbuhan Ekonomi Provinsi Nusa Tenggara Timur

2019 ◽  
Vol 17 (2) ◽  
pp. 38-48
Author(s):  
Martin Luter ◽  
Irlan Indrocahyo ◽  
Islahwani Loka Vita Resti
Keyword(s):  
Economic Growth ◽  
Data Analysis ◽  
Panel Data ◽  
Construction Projects ◽  
Panel Data Analysis ◽  
Secondary Data ◽  
Building Construction ◽  
Water Networks ◽  
The Road ◽  
The Impact

This study investigates the impact of infrastructure spending on economic growth in Nusa Tenggara Timur (NTT). This study uses secondary data from 2010-2017 obtained Direktorat Jenderal Perimbangan Keuangan (DJPK) and Badan Pusat Statistik (BPS). Methods of this study applying panel data analysis to find out the effect of infrastructure spending on NTT’s economic growth. The finding of the study indicates that the road and construction infrastructure spending has a positive and significant effect on economic growth in Nusa Tenggara Timur. Thus, it would be better if government infrastructure spending could be prioritized on road and building construction projects. In addition, spending on other infrastructure such as bridges, water networks, electrical and telephone installations is better governed, so that more effective in increasing NTT's economic growth.

scholarly journals Cost overrun in construction projects in Oman: Case study

2021 ◽  
Vol 10 (3) ◽  
Author(s):  
Haitham Nasser Al Siyabi ◽  
Omar Khaleel
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Poor Quality ◽  
Building Construction ◽  
Cost Overrun ◽  
Survey Interviews ◽  
Original Contract ◽  
Major Factors ◽  
The Cost ◽  
The Impact

There are many challenges in construction industry sector, and one of the most important and critical is completion of the project within the original contract value. As the issue of cost overrun in construction projects is spread worldwide generally and commonly encountered in the Sultanate of Oman.The main objectives of this study are to identify and determine vital factors leading to cost overrun in Building Projects in Oman, evaluate the impact of cost overrun in building construction projects and develop the best protocol strategy for project management teams that can be adopted in order to control the cost overrun in future projects. These objectives have been obtained through several methods, questionnaire survey,interviews with experts in construction industry. Twenty nine major factors lead to cost overrun were identified through literature review and studied in Sultanate of Oman.The study concluded that there are three major impacts of cost overrun in construction projects and industry which are time of completion, delivery of poor quality projects and delay of payment approval. Additional to that, Hire good Supervision Team, a good Cost Controller, Project Manager, a good project design team, well planning for pre-contract stage and proper procurement strategy. Consider the Risk assessment and Risk Control are crucial to minimize the cost overrun in building construction project in Oman. The study have recommended procedure to cost control in future project such as the Employer should have a proper tender analysis of the Contractor’s bid, Detailed design should be finalized before award of work and others.

Sign in / Sign up

Export Citation Format

Share Document