Of Incentive, Bias, and Behaviour: An Empirical Economic Investigation into Project Delivery Constructs Influencing the Adoption of Building Information Modelling

Building Information Modelling (BIM) is a collaborative construction platform allowing for digital databases, real-time change management, and a high degree of information reuse catalysing increased quality of work, enhanced productivity, and lower costs. Yet, overall adoption rates within industry remain vexingly low. Integrated Project Delivery (IPD) is currently the only contractual incentive vehicle available for BIM, and indeed the full potential of both are only realised when employed together; even so, uptake rates of IPD exist even lower. In response, this research evaluates hitherto ill-explored factors influencing the adoption of BIM by empirically testing hypotheses related to the impacts of three compounding theories upon the BIM decision calculus. Specifically, the incentive theory, the theory of acceptance and use of technology (UTAUT), and the status quo bias model. The research approaches BIM adoption holistically at the organizational, individual, transactional, and behavioural levels through a mixed design combining five quantitative, cross-sectional, questionnaire-based studies and one interview-based pre-test/post-test case study with sample populations including a Fortune 100 contractor, internationally renowned trade groups, and arguably the most progressive municipal construction client in the world. Data was collected using purposive sampling and analysed quantitatively through Structural Equation Modelling (SEM) and qualitatively with Directed Content Analysis (DCA). Primary conclusions are that BIM decisions are hierarchical; BIM adoption involves a general higher-level decision-making requiring stakeholders’ consensus; BIM utilization involves a specific lower-level decision-making with managerial discretion; economic incentives and competitive pressure influence higher-level decisions; non-economic factors influence lower-level decisions but are moderated by organizations’ type and size; organizations’ size and the degree of managerial discretion are inversely related; strength of the effects vary across and within the three theory-based factors that influence BIM adoption; and the effects of leadership and organizational culture remain unaccounted for and require investigation

BIM communication waste

Developments in Information and Communication Technology can bring about significant improvements in the efficiency of the Architecture, Engineering and Construction and Facilities Management industry. Building Information Modelling (BIM), is a term which encompasses a type of software but more importantly a set of processes which, at their core, support an approach for integrated project delivery enabled by interoperable software systems. The last three years have seen intensified and coordinated adoption of BIM in the UK mainly as a result of the mandate of the UK government. One facet of these developments is the growing need for BIM collaboration tools which can interoperate effectively with the various BIM software systems, support the required standards and codes of practice and provide for requirements of construction project information production and management such as model-based workflows, model-based communication, model-based procurement, role-based data access and role-based privileges. The pre-requisites for collaboration can be broadly divided into two categories: (1) coordination of information and responsibilities, and (2) communication. This research recognizes the strong focus of recent and ongoing efforts to provide for coordination and aims to support the communication aspect. Additionally, successful collaborative practice results from (1) the "softer" or "human-aspect" issues: collaborative culture, software training and adherence to protocols as well as from (2) the provision of appropriate, intuitive and configurable collaboration tools and, more generally, digital collaboration environments. This research focuses on the latter. Despite efforts from a variety of software-as-a-service (SaaS) collaboration tool vendors to achieve dominance in the market, there is still uncertainty as to what type of solutions would best support BIM collaboration. Additionally, there is considerable variation in software configurations and a lack of a universally applicable method for evaluating the communication capabilities of BIM collaboration tools in a meaningful way. Vendors lack a robust conceptual framework to guide the long-term development of their tools and evaluate them. The process of requirements engineering, which in this context involves a diversity of stakeholders and involves projects at different BIM maturity levels would benefit significantly from a robust, context-specific conceptual model-ontology. The aim of this research is to produce a context-specific conceptual model-ontology which can support the discourse of requirements engineering and provide a robust and widely applicable framework for evaluating the communication capabilities of BIM collaboration tools. It is anticipated that this would help reduce BIM communication waste . To meet this aim, BIM collaboration tools were studied from five perspectives: 1.Users: their opinions, requirements and requests were collected through an online questionnaire survey. 2.Vendor: their perspective was captured through semi-structured interviews. 3.Schemata for interoperability: effectiveness of tools and schemata was evaluated through analysis of software by data fidelity study and scenario-based testing. 4.Tool use: patterns of digitally-enabled communication were explored through an analysis of communication data and meta-data collected from a collaboration tool. 5.Tool improvement: a successful approach in improving a collaboration tool was examined through the development of a context-specific requirements engineering process. This process was evaluated through semi-structured interviews with collaboration tool implementation consultants. Each perspective helped produce more specific requirements from the model as well as elements of the model itself. The end result was the Model for communication waste in BIM process interactions (WIMBIM). WIMBIM has the BIM process transmission as the fundamental unit of analysis and focuses on BIM communication waste and how it results from sub-optimal collaboration tools and schemata. The ultimate purpose of WIMBIM is to support the development of technology which would reduce this waste. This model was converted into a communicable format and was related to BIM standards to aid contextualization and gap identification. To evaluate the validity and utility of this model, interviews with BIM experts were conducted, and the proposed model was found to be a valid approach to address aspects of BIM waste, which is not usually examined and could potentially complement the existing model for BIM maturity. Additionally, the model provides a useful lens for further academic research into BIM collaboration tools

Age composition and survival of public housing stock in Hong Kong

Emerging notably in more developed regions, building stock ageing which is characterised by shrinking new completions and falling “mortality” has been posing challenges to various stakeholders in built environment. To find way out of this transition, we need to know how long buildings will last these days and the factors leading to their “mortality”. By using data from 1950s till to date, a comprehensive investigation is conducted to analyse the age composition and life expectancy of public housing stock in Hong Kong. What comes after are survival analysis and empirical analysis of those demolished to identify the key factors leading to demolition. Presented in this paper are the preliminary findings as well as the research agenda on the theme to model age composition and survival of both private and public building stocks in Hong Kong and other similar cities in Asia Pacific Rim such as Adelaide and Singapore, together with research activities to formulate policies for sustainable urban management

Evaluation of the new Design Summer Year weather data using parametrical buildings

The Charted Institution of Building Services Engineers (CIBSE) updated the near extreme weather (Design Summer Year – DSY) for all 14 locations in the UK in 2016. This new release attempts to address the underlying shortcomings of the previous definition where the averaged dry bulb temperature was the sole metric to choose DSY among source weather years. The aim of this research is to evaluate whether the new definition of the probabilistic DSYs can consistently represent near extreme condition. London historical weather data and their correspondent DSYs were used in this research. Dynamic thermal modelling using EnergyPlus was carried out on large number single zone offices (parametric study) which represent a large portion of cellular offices in the UK. The predicted indoor warmth from the sample building models show that these new definitions are not always able to represent near extreme conditions. Using multiple years as DSY is able to capture different types of summer warmth but how to use one or all of these DSYs to make informed judgement on overheating is rather challenging. The recommended practice from this research is to use more warm years for the evaluation of overheating and choose the near extreme weather from the predicted indoor warmt

Architecture and the Built Environment:

This publication provides an overview of TU Delft’s most significant research achievements in the field of architecture and the built environment during the years 2010–2012. It is the first presentation of the joint research portfolio of the Faculty of Architecture and OTB Research Institute since their integration into the Faculty of Architecture and the Built Environment. As such the portfolio holds a strong promise for the future. In a time when the economy seems to be finally picking up and in which such societal issues as energy, climate and ageing are more prominent than ever before, there are plenty of fields for us to explore in the next three years

Managing the Influence of Stakeholders on the Scope of Major Construction Projects to Prevent Scope Creep in the BIM Era

The present PhD thesis is centred on investigating the challenge of scope creep within construction projects, denoting the phenomenon of an uncontrolled enlargement of project scope without essential adaptations. Stakeholders are identified as a major source of uncertainty and requests for changes in scope, which can result in risky events. Therefore, an overarching framework is needed to effectively resolve the problem of scope creep caused by stakeholder influence. The adoption of Building Information Modelling (BIM) is suggested as an effective methodology for the streamlined management of information in construction projects, thus enabling project managers to develop an appropriate solution for the identified problem. To develop this framework, a meta-analysis approach and case study strategy is employed to analyse and synthesise secondary data collected from the PMBOK GUIDE’S (PMI, 2017) project management processes, BIM-related standards, and six case study projects. The objective is to identify essential processes and activities, their sequence and interdependencies, problematic issues, and best practices. The outcome of the research is the creation of a Process Framework designed to address the problem of scope creep triggered by stakeholder influence. The elements and concepts of this framework are verified by undertaking semi-structured interviews with five practitioners from the construction and infrastructure industry. The Process Framework functions as a unifying mechanism that combines project management and BIM processes, thereby ensuring coordination and integration towards the overarching objective of managing stakeholder influence on project scope and mitigating scope creep. Additionally, this research contributes to the understanding of the relationship between BIM documents and project management processes. The study explores how BIM fits within project management processes and identifies the benefits of BIM for the resolution of issues in construction projects, including end product visualization, clash detection, and efficient information sharing. This study provides an extensive and meticulous analysis of scope creep within construction projects and presents a pragmatic framework for dealing with this issue