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Scheduling repetitive construction projects: structured literature review
Construction projects that involve repetitive operations are often referred to as repetitive construction projects. Scheduling them proves a task more demanding than in the case of projects in other industries. Typical objectives of optimization, a characteristic set of constraints, as well as the schedule’s susceptibility to the propagation of disruptions caused by materializing risks, call for specific scheduling methods. The authors review the literature to summarize the existing repetitive scheduling methods and put forward their classification to identify the method’s aspects needing refinement. This is done to point to directions of further research. The authors hope that this study will contribute to better identification of existing problems in planning repetitive construction projects and faster development of decision support systems, eagerly anticipated by the construction practitioners. Though the focus is on applications to construction projects, the repetitive scheduling methods that account for volatile operating conditions may be of interest to researchers who develop planning techniques for other industries.
Journal Article
Critical success factors influencing construction safety program implementation in developing countries
The construction industry has always been considered as one of the most hazardous industries globally. The condition is worse in developing countries due to poor implementation of safety management. To overcome this problem, there is a need to focus on improving the implementation of safety programs. This paper aims to identify the factors that have the potential to influence the implementation of safety programs in construction projects in developing countries. An extensive review of literature found 21 critical success factors. Sixteen semi-structured interviews with experts in the Iraqi construction industry was conducted to gain in-depth insight and understanding of these factors. The interviewees confirmed the relevance of the success factors and emphasized on the importance of several factors, including management commitment, safety training, the enforcement of safety rules and regulations, and stakeholder collaboration. Technology is a new factor identified by the interviewees. The findings can used in the Iraqi construction industries and in developing countries to support the implementation of safety programs.
Journal Article
Extraction of underlying factors causing construction projects delay in Nigeria
PurposeThis paper aims to establish the most underlying factors causing construction projects delay from the most applicable.Design/methodology/approachThe paper conducted survey of experts using systematic review of vast body of literature which revealed 23 common factors affecting construction delay. Consequently, this study carried out reliability analysis, ranking using the significance index measurement of delay parameters (SIDP), correlation analysis and factor analysis. From the result of factor analysis, this study grouped a specific underlying factor into three of the six applicable factors that correlated strongly with construction project delay.FindingsThe paper finds all factors from the reliability test to be consistent. It suggests project quality control, project schedule/program of work, contractors’ financial difficulties, political influence, site conditions and price fluctuation to be the six most applicable factors for construction project delay, which are in the top 25% according to the SIDP score and at the same time are strongly associated with construction project delay.Research limitations/implicationsThis paper is recommending that prospective research should use a qualitative and inductive approach to investigate whether any new, not previously identified, underlying factors that impact construction projects delay can be discovered as it followed an inductive research approach.Practical implicationsThe paper includes implications for the policymakers in the construction industry in Nigeria to focus on measuring the key suppliers’ delivery performance as late delivery of materials by supplier can result in rescheduling of work activities and extra time or waiting time for construction workers as well as for the management team at site. Also, construction stakeholders in Nigeria are encouraged to leverage the amount of data produced from backlog of project schedules, as-built drawings and models, computer-aided designs (CAD), costs, invoices and employee details, among many others through the aid of state-of-the-art data driven technologies such as artificial intelligence or machine learning to make key business decisions that will help drive further profitability. Furthermore, this study suggests that these stakeholders use climatological data that can be obtained from weather observations to minimize impact of bad weather during construction.Originality/valueThis paper establishes the three underlying factors (late delivery of materials by supplier, poor decision-making and Inclement or bad weather) causing construction projects delay from the most applicable.
Journal Article
Practical Project Management for Building and Construction
This book gives general information about construction management, project management, project life cycle processes, project phases, and key documents. It presents information about the fourteen knowledge areas of project management important to construction business. For each knowledge area, the text explains the processes for scope, time, risk, cost and resource management. It describes procurement management including strategies, contract types, remuneration forms, and contract close out. The chapters also examine change management, working environment, quality, and communication.
eBook
Job site
Following directions from the job site boss, construction workers carry out important tasks at a construction site using heavy machinery, including a bulldozer, an excavator, and a loader.
Book
Exploring anti-corruption capabilities of e-procurement in construction project delivery in Nigeria
The use of electronic (e-) procurement to support the execution of supply chain management activities in the different industrial sectors is permeating all regions of the world. However, in countries in sub-Saharan Africa where there is a significant level of corruption and unethical practices in the procurement process, there is a need for a better understanding of how e-Procurement can help to check the incidence of corrupt and unethical practices in construction project delivery. This study relied on a cross-sectional survey of 759 respondents, including architects, builders, engineers, estate/facilities managers, contractors, construction/ project managers, quantity surveyors, supply chain managers and others to identify and analyse the anti-corruption capabilities of e-Procurement in construction project delivery in Nigeria. The results of the descriptive statistics, relative importance index and principal components analysis identified 18 anti-corruption capabilities in e-Procurement in construction project delivery with the three most important ones being the capability of e-Procurement to ensure good inventory management/record keeping; accountability by providing audit services trail and minimise direct human contacts during bidding. The key underlying dimensions of these capabilities include the advantage of e-Procurement over the traditional paper-based method; transparent bidding process and increase in competition in construction project delivery process. The findings of this study have implications, especially, on the use of e-Procurement to curb corruption in construction procurement activities.
Journal Article