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    Construction projects status tracking : a real-time data-driven framework for delay management and analysis : a thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy in Building and Construction, School of Built Environment, College of Science, Massey University, New Zealand
    (Massey University, 2025-10-16) Radman, Kambiz
    Construction delays remain one of the most critical challenges in project delivery, often resulting in cost overruns, schedule slippages, and weakened stakeholder confidence. Traditional delay management methods are largely reactive, relying on periodic reporting and fragmented communication across project teams. In contrast, the increasing availability of digital tools offers the opportunity to adopt more proactive, data-driven approaches. This study introduces a framework that centralises and analyses real-time project data from multiple stakeholders, including head contractors, subcontractors, consultants (via Building Information Modelling—BIM), and on-site teams. By integrating these diverse inputs into a unified Power BI dashboard, the framework enhances early detection of delays, improves coordination, and supports timely decision-making. Earned Value (EV) metrics are embedded as key control points, providing early signals of deviations and potential risks. Despite these advances, several research gaps remain. Existing systems are often costly and complex, highlighting the need for simple, inexpensive, and user-friendly solutions. Real-time data acquisition and centralisation are still underdeveloped, limiting the speed and reliability of insights. Current practice focuses heavily on retrospective reporting, with limited capability for real-time analytics or predictive forecasting. Stakeholder communication and coordination remain fragmented, while systematic early notification systems for emerging delays are rarely implemented. Ultimately, it is necessary to integrate historical and real-time data to facilitate predictive delay analytics. Addressing these gaps would help shift construction delay management from reactive intervention towards proactive risk mitigation. Guided by these gaps, the research is shaped around three central questions: (1) What causes delays in major construction projects, and how do these delays affect stakeholder collaboration? (2) How are digital technologies currently being deployed to improve project performance in relation to delays and risks? (3) How can a new framework be designed and evaluated to strengthen early delay detection and enhance project outcomes? To answer these questions, five objectives are established. First, to identify and analyse the key project stakeholders and the principal causes of delay. Second, to review and assess the role of digital technologies in construction projects. Third, to develop a framework that integrates real-time data for enhanced monitoring, reporting, and early detection of delays. Finally, to evaluate this framework in practice, assess its effectiveness in enhancing transparency, facilitating stakeholder coordination, and improving overall project performance. In doing so, this research contributes to the advancement of digital construction management by embedding real-time analytics into live project environments. The proposed framework not only enhances transparency and resource allocation but also lays the groundwork for predictive delay management, thereby aligning construction practices with the broader objectives of Industry 4.0.
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    A framework for enhanced decision making in construction organisations based on quality of pipeline information : a thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy, School of Built Environment, Massey University, New Zealand
    (Massey University, 2025-08-25) Moshood, Taofeeq Durojaye
    The New Zealand government actively pursues the development of a sustainable construction sector that ensures high performance, productivity, innovation, and community well-being through diverse project initiatives spanning residential, non-residential, and infrastructure development. Despite these aspirations, construction projects in New Zealand are frequently delayed and not effectively completed, thus leading to underperformance. Two critical factors contributing to project delays and suboptimal outcomes are inadequate quality of information and ineffective strategic decision-making processes. Formulating effective strategic decisions is a fundamental challenge for construction organisations, significantly impacting their overall strategic goals and operational success. While information management and decision execution are widely recognised as crucial elements in organisational strategy, there remains a notable gap in understanding the intricate relationship between the quality of information and strategic decision-making, particularly within the context of construction business performance. This research addresses this critical knowledge gap by identifying the determinants for successful construction business performance. It investigates the mediating role of quality of information in the relationship between strategic decision-making and the performance of construction businesses in New Zealand. The study employs a comprehensive methodological approach combining systematic literature review, quantitative analysis, and stakeholder validation to develop a robust understanding of these complex relationships. The systematic literature review focused specifically on identifying critical determinants for successful construction business performance in New Zealand, utilising the ATLAS.ti 9 tool for analysis. This comprehensive review highlighted the fundamental role of the quality of information in strategic decision-making processes and its subsequent impact on organisational performance. This systematic analysis led to the development of a conceptual framework and associated hypotheses establishing the relationships between these factors and their impact on strategic decision-making, information quality, and construction business performance. A quantitative survey was conducted with 102 respondents, and the sample size was determined using G*Power analysis to ensure statistical validity. The study examined how strategic decision-making and information quality influence construction business performance in New Zealand. The research method that was employed integrated established theoretical models and employed Partial Least Squares Structural Equation Modelling (PLS-SEM) using SmartPLS4 software. This analytical approach allowed for robust testing of both direct relationships between variables and the mediating effect of information quality on the relationship between strategic management practices and business performance outcomes. The findings revealed a strong positive correlation between strategic decision-making management and construction business performance, with quality of information serving as a crucial mediating factor. A key research component involved validating the proposed strategic decision-making process framework for its sufficiency, clarity, coherence, relevance, and applicability in New Zealand construction organisations. This validation process included in-depth interviews with six industry experts representing various organisational approaches to strategic decision-making. Their responses revealed a spectrum of techniques ranging from highly structured to more informal methodologies, providing valuable insights into the practical application of strategic decision-making frameworks in different organisational contexts. The research outcomes significantly contribute to theoretical understanding and practical application in the construction industry. Establishing clear criteria for successful quality of information and identifying critical factors affecting project implementation success, this study offers valuable guidance for improving practices within the construction sector. The findings emphasise the crucial importance of prioritising both the quality of information and strategic decision-making to effectively lessen project delays and optimise overall performance in the construction sector. Furthermore, the research contributes to developing more effective strategic decision-making processes by highlighting the interconnected nature of the quality of information and strategic planning. The validated framework provides construction organisations with a practical tool for enhancing their strategic decision-making capabilities while considering the critical role of quality of information in achieving successful outcomes. This study's findings have significant implications for construction industry stakeholders, such as project managers, organisational leaders, and policymakers. The research demonstrates that improving the quality of information and strategic decision-making processes can enhance project outcomes and overall organisational performance. The validated framework offers a structured approach for organisations to assess and improve their current practices while considering their unique operational contexts and requirements.
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    Rework management in construction contracts : an assessment of NZS3910:2013 provisions : a thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Engineering, Construction Project Management, Massey University, Auckland, New Zealand
    (Massey University, 2021) Asadi, Ramin
    Contracts play a significant role in achieving project goals in the construction industry. To enhance a project's performance by implementing a professional contract, construction practitioners must understand how contraction issues are addressed in the contract conditions. Although various contributing factors that affect construction contracts have been investigated and several methodologies have been proposed, the contract provisions that contribute to rework in construction projects have not been assessed adequately. Rework is of interest in the construction industry as it occurs throughout the project life cycle and affects its performance. The lack of understanding of construction practitioners under rework events may lead to cost overruns and delay in projects, resulting in contractual claims and disputes. Therefore, this research aims to investigate the contract clauses to improve the conditions that affect the project's performance by addressing rework. On the other hand, the contract is an essential means of controlling and managing interactions between parties under various situations. The assessment of contract provision in addressing contractual issues has been practiced effectively over the years to overcome conflicts between contract parties. Thus, the selected concept is helpful for improving the contract conditions under different circumstances. This study attempts to address issues related to rework in construction projects, which significantly improves the contract conditions. Initially, through conducting a comprehensive literature review, the root causes of rework are identified and then using a systematic literature review approach, the identified causes are classified with liable contract parties. The classified rework causes then are investigated in New Zealand construction projects using a questionnaire survey to find the relevant common causes of rework in contracts. The relationship between rework causes and contract clauses is then established through common sources of rework and contractual claims. For this purpose, the case of NZS3910 is selected as the most commonly used standard form of contract in New Zealand to assess the contract provisions under rework events. The initial findings show that the current condition of the contract does not address rework adequately. After investigating the relational aspect of rework in the construction contract, a series of professional interviews are conducted to explore the strengths and weaknesses of the contract conditions related to rework in construction projects. Then, the best practice to address rework is followed up. Furthermore, the current provisions stipulated in NZS3910 are evaluated as a documentary review to collect evidence for validation of interview results. It is observed that, while rework has not been defined in the contract, some of the contract clauses can be referenced for addressing rework. It is also confirmed that more clarification in the contract provision is required during contract preparation to avoid contractual claims originating from rework. Thus, the study develops a list of recommendations for improving the contract conditions that address rework issues. The research concludes by providing guidelines for addressing rework in contract provisions of NZS3910 and some general recommendations for improving the contract conditions. This research adds to the body of knowledge by improving the contract practices for rework management and achieving higher project performance with fewer contractual claims and disputes. Finally, and based on the study's findings, a framework that shows the flow of information for addressing rework is presented and recommended for further investigation in future research.