The Government of Indonesia is undertaking sustainable infrastructure development to meet societal needs and support economic progress. The infrastructure should be designed to fulfil the long-term requirements of the community, and its construction must take into account both technical and non-technical aspects to ensure that budget utilization is accurate and appropriately targeted. The Government should ensure the implementation of a suitable project delivery system for infrastructure development to guarantee minimal risks and prevent the expenditure from exceeding the Government's financial capacity. This study formulates a risk matrix for government road infrastructure development projects in Indonesia to ensure that budget utilization is both efficient and well-targeted. The application of this risk matrix will assist the Government in selecting a project delivery system that enables effective and efficient execution of infrastructure projects. A mixed-method approach was employed, combining quantitative and qualitative techniques. The quantitative method involved mapping risks based on the factors influencing government road development projects, followed by expert validation to assess the probability and impact of the identified risks. Thirty-two risk matrices were produced and categorized into low, medium, and high-risk levels. These risk matrices serve as the basis for selecting an appropriate project delivery system for government road construction projects, including Design–Bid–Build (DBB), Design and Build (DB), and Integrated Project Delivery (IPD). The recommendations derived from this research contribute to the selection of an appropriate project delivery system and the effective and efficient allocation of budgets in the pursuit of sustainable infrastructure development.

Integrated Project Delivery (IPD) is a collaborative project delivery approach that brings together people, systems, and practices to reduce waste, enhance sustainability, and improve project outcomes. This study examined the factors and their interactions hindering IPD implementation in New Zealand (NZ) through 18 semi-structured interviews with local construction professionals. Using manual coding and VENSIM visualisation, the study identified key challenges and their interactions. Critical factors include resistance to change, low technology adoption, high initial investment costs, insufficient mutual respect and trust, client’s resistance, and lack of industry standardisation. Key challenges in NZ include a lack of information on IPD outcomes, a limited number of contractors and consultants, governance conflicts, a preference for traditional models, resistance to change among experienced professionals, contractor liquidations, subcontractors taking main contractor roles, and project size. The research used network analysis methods, such as degree and eigenvector centrality, and causal chain analysis to identify critical factors and chains affecting IPD uptake. The findings compare NZ’s challenges with global experiences, highlighting both unique and common obstacles. While the limited sample size (18 professionals) is a constraint, the research provides insights to help researchers and practitioners address factors and their interactions to support sustainable construction practices in NZ.

Integrated Project Delivery (IPD) is a collaborative approach proposed to address fragmentation and performance issues in the AEC industry, yet its adoption remains limited. This study examines Brazilian professionals’ perceptions of IPD and identifies the barriers, challenges, and enablers associated with it. Drawing on a survey and a systematic review, the findings indicate that although benefits such as improved collaboration are recognized, concerns about contractual feasibility, shared risks, and organizational readiness persist. Technological aspects are seen as more familiar than contractual or managerial changes, diverging from international empirical evidence, which typically identifies contractual and governance-related challenges as the primary barriers to IPD adoption. The study reveals both shared global challenges and unique Brazilian issues, particularly regarding implementation complexity. Adoption depends more on organizational and contractual preparedness than on technology, informing strategies for introducing collaborative models in emerging markets.

ABSTRACT The Architecture, Engineering, and Construction (AEC) industry continues to face persistent inefficiencies and fragmentation that limit collaboration and innovation. The convergence of Integrated Project Delivery (IPD) and Building Information Modeling (BIM) offers a strategic response to these challenges. This study conducts a comprehensive bibliometric review to examine the intellectual, thematic, and collaborative evolution of IPD-BIM research. Drawing on 276 peer-reviewed journal articles published between 2000 and 2025 and analyzed using VOSviewer, the study maps publication trends, co-authorship networks, and thematic clusters. The findings reveal a pronounced growth in scholarly output after 2015, driven by government procurement mandates, institutional reforms, and digital transformation policies, particularly in the United States and Australia. Keyword and citation analyses reveal five interconnected clusters – digital delivery (BIM-IPD), management, procurement, performance, and technology. Recent emphasis shifts toward integration, interoperability, and lifecycle value. Emerging topics (5D BIM, blockchain, VR) signal movement from concept demonstrations to system-level deployment and transparent, data-driven collaborative delivery. The results demonstrate a maturing research ecosystem anchored in strong North-South asymmetries but with increasing global participation. The study contributes an interpretive framework that links technological innovation with collaborative governance, offering actionable insights for policymakers, educators, and practitioners in construction delivery systems.

Purpose The Architecture, Engineering, and Construction (AEC) industry is witnessing a growth in the implementation of Lean principles, in particular, by teams adopting Integrated Project Delivery (IPD). This growth requires participants in these teams to possess knowledge of Lean and IPD. However, the practitioners might not have the time to participate in continuous training, nor the metacognitive awareness of their knowledge gap in these areas. This study develops an instrument to support participants in IPD teams in assessing their knowledge in implementing Lean in their projects. The instrument also aims to support these participants in gaining a metacognitive awareness of their knowledge gap and self-regulate their Lean learning journey. Design/methodology/approach The instrument was designed by leveraging literature on IPD, Lean Construction and self-regulated learning in educational psychology. Five semi-structured interviews were conducted to evaluate the instrument's face and content validity. The instrument was then deployed on three IPD projects, and survey data collected from these projects were used to validate its effectiveness. A principal component analysis was conducted to identify the most influential factors in self-regulated lean Learning assessment. Findings Based on the data from the three projects, owners and trade contractors in IPD projects implementing Lean tend to place more emphasis on Lean topics focused on understanding and fostering a collaborative environment. On the other hand, Architects, design engineers and other participants emphasize on learning and working towards a project environment based on trust. Research limitations/implications These findings inform participants on their current strengths in Lean implementation, which can be capitalized on for better project outcomes. Further, it helps identify areas that participants need to place more emphasis on their Lean journey to achieve improvements. Practical implications Through this instrument, the authors aim to support a better understanding of gaps in learning and implementing Lean principles by IPD project participants. Originality/value This paper develops a unique instrument that demonstrates how self-directed learning can be leveraged to assess the lean learning journeys of construction industry practitioners.

Question: What lean approaches are more suitable for improving pre-construction processes, which, if not performed effectively, are likely to lead to cost overruns in the construction of transportation projects? Purpose: The purpose of this research is twofold. First, to identify what main pre-construction processes have the potential to lead to cost overruns in construction if not conducted effectively. Two, to identify what lean techniques might be more suitable to improve those processes. Research Method: This research followed a two-stage methodology. First, the authors conducted a systematic literature review and a focus group to identify and validate the pre-construction processes to be analyzed in the second stage. Second, the authors completed a two-round Delphi Survey to identify and rank the most suitable lean techniques for improving the processes identified in Stage 1. Findings: The authors found “Risk Identification and Assessment” and “Design Interdisciplinary Reviews” to be the two most relevant pre-construction processes that, if not conducted effectively, might lead to cost overruns in construction. To improve those processes, Integrated Project Delivery (IPD) and Target Value Design (TVD) were found to be suitable for improving both processes. Last Planner System (LPS®) and Building Information Modelling (BIM) were identified for improving “Risk Identification and Assessment” and “Interdisciplinary Design Reviews,” respectively. All the lean approaches identified are based on team collaboration. Limitations: The results of this research are based on experts’ opinions. Further research should test the effectiveness of using these lean techniques and their impact on minimizing cost overruns in construction. Implications: The results from this research support the use of collaborative approaches in developing preconstruction processes to minimize construction cost overruns. Value for authors: The lean approaches proposed as a result of this research might inspire owners and practitioners to boost collaboration within and across pre-construction processes. Keywords: Transportation Projects, Cost Overruns, Delphi Survey, Pre-construction Paper type: Technical Note

Purpose Drawing upon the trust and sociotechnical system (STS) theories, this study aims to develop a conceptual framework addressing trusts in building information modelling (BIM) and project partners to identify the underlying mechanism of the BIM-enabled performance. Design/methodology/approach This study followed a two-stage process, first refining 63 trust items in BIM to 15 across five dimensions via literature and expert interviews, and then validating these through surveys with BIM-enabled project managers in China, obtaining a 75% response rate. Data from the surveys were analysed using path analysis to explore the relationships between trust in BIM, trust in partners and project performance. Trust and performance metrics were gauged using established scales on a five-point Likert scale. Findings The results reveal that trusts in BIM and project partners are significantly correlated with the performance of BIM-enabled projects through organisation citizenship behaviour (OCB) and information sharing. Research limitations/implications The contribution of this research is twofold, as we (1) develop a paradigm aiding the BIM-enabled projects through unearthing the roles of “trusts” and (2) set forth a platform for future research into BIM integration. Practical implications The developed “trust in BIM” scale is the first attempt to provide a reliable and practical measurement tool for understanding trust in BIM. It enables practitioners to better organise and manage BIM-enabled projects from the perspectives of trust and cooperation. Originality/value This study expands the theoretical underpinning of integrated project delivery with BIM by developing a homological network of trust and revealing its influencing mechanism. The integrated Trust-STS framework offers an analytical perspective with trust as the environment, social technology as the basis and project performance as the orientation.

The construction industry is an important sector in the economies of nations and plays a key role in socio-economic growth of Zambia. Construction projects in Zambia struggle to meet owner’s performance expectations. Increased cost-effectiveness and reduced waste in Architecture, Engineering and Construction (AEC) projects requires an examination of alternative delivery methods. Integrated Project Delivery (IPD) has been used on some projects since 2007, revealing great advantages and outcomes exceeding owner’s expectation. IPD is a proven solution for a poorly structured construction industry, characterized by wastage, late-delivered projects, over budget, and at a significant human cost. Yet, the exposition, understanding and application of IPD mechanism in Zambia remains absent in the construction project management, specifically in the construction practitioner’s human skills. The purpose of this paper was to measure the view of Zambian construction practitioners on IPD principles. The investigation used a quantitative method through a questionnaire survey targeting construction practitioners in the Zambian construction industry. The finding revealed that 87.4% of respondents agreed with statements emanating from the IPD main contract while 12.6% either disagreed or were unsure, 69.8% were in agreement with IPD catalysts while 29.2% of respondents were unsure on the usefulness of the suggested tools to deliver project more effectively, and finally 97.9% of respondents perceived that the adoption and application of IPD principles in the Zambian construction industry would help deliver efficient projects in Zambia. Hence the need to familiarize construction practitioners with IPD contractual principles.

This paper presents a bibliometric and literature review on decarbonization strategies in sustainability-oriented contractor selection within Integrated Project Delivery (IPD) frameworks. The study analyzes 972 journal articles published between 2002 and 2024 from Scopus, complemented by Google Scholar for thematic insights. Bibliometric techniques in R were applied to identify influential publications, research trends, and thematic clusters. The review highlights documented benefits of integrating decarbonization into contractor evaluation, including lifecycle carbon reduction, ESG alignment, and early-stage material optimization. Challenges remain in terms of limited lifecycle data, absence of standard benchmarks, and organizational resistance. Critical success factors identified include policy alignment, availability of assessment data, and collaborative stakeholder engagement. The findings demonstrate that incorporating carbon-related performance indicators into early procurement decisions can reshape prequalification standards and strengthen sustainable project delivery. Citation and co-word analysis reveal emerging research trends, including digital innovations such as artificial intelligence for contractor evaluation and emissions tracking. This study provides both a research foundation and a strategic guide for construction professionals, policymakers, and sustainability advocates aiming to align IPD with global decarbonization targets.

The article comprehensively examines the issue of improving the efficiency of construction project implementation in the context of increasing global competition and strengthening requirements for sustainable development. The main groups of project indicators used to assess the success and effectiveness of construction project implementation are considered and systematized, namely: technical, economic, time-related, and qualitative. It has been found that traditional management approaches are often insufficiently flexible and transparent, leading to systemic problems such as cost overruns, delays, and low adaptability to changing market conditions. Based on the analysis of modern research, it is substantiated that the fragmented implementation of individual digital technologies, such as BIM, IoT, AI, and PM systems, is not sufficient to ensure a comprehensive improvement of project indicators without their integration into a holistic management methodology. The key novel methodologies are analyzed – Lean Construction, which focuses on eliminating waste; Agile approaches, which ensure iterative planning and a quick response to changes; and Integrated Project Delivery (IPD), which promotes full collaboration among all project participants. It has been determined that their interaction with digital tools creates a powerful synergistic effect. For example, BIM provides the technological basis for implementing Lean principles, while risk management systems that work with Big Data and AI ensure proactive risk detection and minimization, which is the foundation of ROPM. The main emphasis is placed on the synergistic effect that arises from the systematic integration of these methodologies and digital tools. The study shows how this combination allows for a comprehensive improvement of key indicators, ensuring a transition from a reactive to a proactive management model. The result is a significant reduction in timelines, cost optimization, and an increase in quality and safety. In the context of the large-scale reconstruction of Ukraine, this approach becomes a critical necessity for ensuring a sustainable and technologically advanced process of the country's recovery.

Abstract Being one of the most environmentally harmful sectors globally, the construction industry must move away from the linear processes prominent today. Regenerative building design holds significant potential in this regard; however, so far, this approach has been limited to the pre-construction phases. This paper presents a comparative framework for integrating regenerative design principles into construction management practices. Developed through an inductive, literature-based approach, the framework maps conventional, sustainable, and regenerative strategies across core management activities, such as planning, procurement, logistics, and post-construction monitoring. It identifies how tools such as Building Information Modeling, Life Cycle Assessment, and Integrated Project Delivery, along with the adoption of Lean Construction principles, can support the transition toward net-positive environmental outcomes, including ecosystem restoration, circular resource flows, and long-term ecosystem and planetary resilience. The study highlights practical opportunities for regenerative implementation in construction processes and outlines future research directions.

Purpose Integrated project delivery (IPD) is an approach that integrates people, systems, business structures and practices into a process that collaboratively utilises the skills and opinions of all project participants to enhance sustainability through waste reduction. Though numerous articles on factors related to IPD are available, the interactions between factors associated with IPD are a research gap. This study addresses this research gap and aims to identify the interactions between key factors of IPD. Design/methodology/approach A systematic literature review (SLR) was conducted using three databases and key publishers – Scopus, Emerald and ScienceDirect. The SLR identified 222 factors related to IPD by studying 66 articles. The factors were uploaded to VOSViewer to identify the critical factors through repetition. Each of the 66 articles was examined to determine the interactions between factors through deductive reasoning. The interactions were visualised using VENSIM, and analysis methods such as nodes, degree of centrality and eigenvector centrality were used to identify the critical factors of IPD. Findings A total of 127 factors were identified, of which mutual respect and trust, resistance to change, challenging cultural paradigms, client/owner’s resistance to change, difficulties in achieving financial transparency, interoperability and cost estimation challenges were deemed critical factors of IPD. The implications of this research will aid researchers and industry practitioners in comprehensively understanding the interactions between key factors, thus preparing solutions to increase IPD implementation for sustainable construction in the global context. Originality/value This study is the first to analyse the interactions between IPD factors in the global construction industry based solely on an SLR. While several articles have been written on the factors of IPD implementation globally, the interactions have never been studied before.

Bridge construction projects are inherently complex and resource-intensive, demanding the careful balancing of multiple performance criteria such as time, cost, energy consumption, and construction risk. Traditional optimization approaches in construction management often focus solely on time-cost trade-offs, overlooking sustainability and safety objectives that are increasingly critical in contemporary infrastructure development. This study addresses this gap by formulating a discrete-time multi-objective optimization framework tailored specifically for bridge construction under the Integrated Project Delivery (IPD) model.

ABSTRACT Integrated Project Delivery (IPD) is a relatively new delivery model that integrates design and construction, offering significant advantages over traditional approaches by addressing fragmentation issues. However, like other innovative advancements in the architecture, engineering, and construction (AEC) industry, IPD implementation faces various challenges and barriers. This research aims to uncover and analyze IPD implementation barriers in Iran’s AEC industry. To this end, after identifying barriers through a literature review, they were ranked through a Delphi questionnaire. The collected data were analyzed and categorized using the factor analysis method into ‘Poor Communication,’ ‘Technological Deficiencies,’ ‘Contractual Ambiguities,’ ‘Lack of Transparent Profit-Sharing,’ ‘Ineffective Cost Management,’ and ‘Deficient Planning.’ The findings show that ‘Poor Communication’ and ‘Technological Deficiencies’ are the most critical categories associated with IPD implementation challenges in Iran. This research contributes to the body of knowledge by highlighting the key areas where IPD implementation faces obstacles in resource-constrained or high-risk environments, enabling practitioners and policymakers to take initiatives to facilitate the process.

Despite continued efforts to improve the construction industry’s performance in terms of productivity, budget adherence, and schedule reliability, the sector remains a laggard compared to others. Among the innovative project management approaches aimed at addressing these issues are Advanced Work Packaging (AWP) and Integrated Project Delivery (IPD). This study conducts a comparative literature-based analysis of AWP and IPD, focusing on their performance outcomes and implementation challenges. Through a systematic review of 47 publications and key institutional reports, this study evaluates both methods across criteria such as adaptability, risk sharing, collaboration, workflow granularity, and cost-effectiveness. The results indicate that AWP excels in workflow standardization, package-level planning, and field execution, particularly in industrial and modular projects, while IPD demonstrates superior adaptability, stakeholder integration, and collaborative risk management in complex building projects. However, both methods face barriers including legal constraints, change resistance, and high integration costs. This study proposes context-specific recommendations and highlights potential synergies between AWP and IPD. While the analysis is constrained by limited empirical studies—especially regarding AWP—it lays a foundation for future research and offers actionable insights for project managers selecting between or integrating the two methods.

Purpose This paper presents an in-depth case study on an agile hybrid project delivery approach in the context of a complex building design problem. The study aims to understand and evaluate the effectiveness of adaptive project delivery strategies in uncertain and complex project processes where integrated and agile methods are necessary for project development. Design/methodology/approach The study employed a qualitative research design based on an instrumental case study. An agile hybrid project delivery framework was devised by combining agile and integrated project delivery methods. The interdisciplinary design and engineering tasks were recorded and evaluated with the process and product quality dimensions. The findings were reported through a thematic analysis to highlight the strategies, benefits, and challenges within the agile hybrid project experience. Findings The results from the case study suggest that the proposed agile-hybrid approach provided an adequate basis for complex design projects with changing factors, varying needs, stringent performance requirements, and integration imperatives while addressing complexity issues, project quality and stakeholder effort. The adaptive and flexible nature of the employed project delivery framework allowed for the identification of interconnected design problems, the breakdown of design tasks into manageable and interdependent sprints, and the catalysis of dynamic and efficient stakeholder interactions for improved decision-making, increased project value and collaborative processes. Parametric BIM models facilitated the robust exchange of information during iterative and incremental project development cycles. Originality/value The study introduces an unprecedented agile hybrid approach with an adaptable and integrated project delivery framework with a comprehensive real-world case study that explores various aspects of wide-range implementation. These include compliant project types, transformed stakeholder roles and responsibilities, cross-functional team building, critical uncertainty dimensions, facilitation of iterative and cyclic workflows, situated BIM use along with strategic considerations, and suitability markers. The study also offers evidence-based insights and actionable recommendations on the effective deployment of agile hybrid project delivery methods in specific AEC projects characterized by uncertainties and ongoing changes.

Building Information Modeling (BIM) is a technology increasingly used in the modern construction industry, particularly to improve communication efficiency and collaboration between stakeholders. This technology enables the integration of project data and information into a comprehensive digital model, allowing all involved parties to access, verify, and update information in real time. This study aims to evaluate the strategic role of BIM as a communication medium in the Integrated Project Delivery (IPD) approach, focusing on the planning stage involving the disciplines of architecture, structure, and Mechanical, Electrical, and Plumbing (MEP) systems. The IPD approach emphasizes cross-disciplinary collaboration from the early stages of a project to optimize outcomes, reduce risks, and accelerate completion. The research methods used are literature review and case study analysis of various projects that have implemented BIM within the IPD framework. The data analyzed include the effectiveness of information exchange, inter-team coordination, and early identification of design conflicts. The study results show that BIM significantly improves information transparency among stakeholders, minimizes the risk of miscommunication, and accelerates the decision-making process through accurate and integrated data visualization. BIM models also facilitate the detection of potential conflicts, such as clashes between structural and MEP elements, before entering the physical construction phase, thereby reducing repair costs and delays. Furthermore, the use of BIM in IPD fosters a more collaborative work culture, where architects, engineers, and contractors can work together to solve problems quickly and effectively. Thus, BIM has proven to play a crucial role as a primary communication tool in IPD implementation, while also serving as a crucial foundation for achieving efficient, integrated, and high-quality construction project management.

Against the backdrop of the construction industry's green transformation, prefabricated buildings struggle to fully realize their potential due to inherent management mechanism deficiencies. Based on lean management theory, this paper systematically analyzes its application potential throughout the entire process of prefabricated construction from an adaptability perspective. The research indicates that from a technical dimension, the deep integration of BIM and digital twin technologies constructs an intelligent "design-production-construction" closed loop, significantly enhancing collaborative efficiency and resource utilization. From an organizational dimension, reliance on the Integrated Project Delivery (IPD) model achieves goal-process-culture synergy, effectively breaking down traditional contractual barriers. From an economic dimension, a whole-life-cycle matching mechanism for capital-information resources is established, simultaneously realizing immediate cost optimization and long-term asset value appreciation. However, the contradiction between standardization and customization, data fragmentation across the industrial chain, and the transformation costs for small and medium-sized enterprises constitute the primary adaptability barriers. This study provides a systematic solution for prefabricated buildings to overcome management bottlenecks and achieve goals of cost reduction, efficiency improvement, and low-carbon transformation.

ABSTRACT Building information modeling (BIM), lean management, and integrated project delivery (IPD) are changing building design and project delivery practices, requiring future architects, engineers, and construction managers to develop new sets of knowledge, skills, and attitudes to adapt to these practices. This study identifies the main benefits, challenges, and key influencing factors based on students’ and educators’ learning and teaching experiences, respectively, of planning, developing, and implementing a project-based Lean IPD design process management course. The course, which used a participatory action research approach, was designed to meet industry needs by engaging students in real-life construction projects and collaborations with companies and industry experts. The main benefits included authentic IPD experiences gained via active teamwork, collaborations, and frequent interactions with clients, mentors, and peers. Conversely, a primary challenge identified is that planning, developing, and implementing such an immersive, project-based lean IPD course requires comprehensive, curriculum-wide planning and careful consideration of students’ learning experiences. This research contributes to advancing innovative project-based pedagogical strategies in construction education.

The architecture, engineering, construction, and economic management (AEC-EM) sectors are to incorporate integrated decision-making (IDM) for project value enhancement (PVE). In this paper, it is conducted with the view of consolidating research on the mechanisms and pathways through which IDM achieves PVE. The study builds a theoretical basis for core IDM and PVE concepts from system integration, value engineering, and stakeholder theory. Among other factors, the paper identified key mechanisms contributing to the effect: reduced information asymmetry, lower coordination costs, optimized design and construction, and general performance of the project in resources utilization. Among others, the primary pathways of implementing IDM are discussed: integrated project delivery (IPD), building information modeling (BIM), early contractor involvement (ECI) and relational contracting. Another novelty of the review is the consideration of multi-dimensional project value assessment above traditional metrics. Research focus of the current studies is also unveiled: digitalization and sustainability. Lastly, it indicates the research voids, like the measure of intangible value and the socio-technical IDM, suggesting the directions of future studies to bridge the theory-practice divide and foster more value creation in AEC-EM projects