Digital Commons Network^™

Analyzing Employment Disparities In Construction Science & Management (Csm) Graduates For Specialty Trade Contractors (Stc), Vivek Sharma, Dhaval R. Gajjar, Stuti Garg, Adam Hoots, Gopika Viswanathan

CIB Conferences

The United States construction industry has grappled with labor shortages for years. Numerous studies have focused on attracting younger generations to the general contracting sector; however, more research needs to be conducted on why young graduates from construction science management (CSM) programs tend to favor general contracting over subcontracting careers. This research aims to bridge this gap by exploring the reasons behind the disinterest in subcontracting careers among recent graduates. The literature review identified several studies that examine the motivational factors and incentives driving individuals to work for Specialty Trade Contractors (STCs) in the construction industry. These studies also discuss …

A System Dynamics Model For Urban Sprawl And Its Impact On Sustainability, Bahaa Chammout, Ramy Khalef, Islam H. El-Adaway

CIB Conferences

The exponential population growth and global urbanization have resulted in a surge in the demand for housing, thereby intensifying the demand for construction material resources. Nonetheless, the construction industry continues to be a significant contributor to global pollution, with its annual carbon dioxide emissions exceeding 35% of global emissions. Furthermore, the industry generates substantial construction and demolition (C&D) waste, comprising 20-29% of all US solid waste. To address these environmental concerns, a fundamental understanding of the management of construction resources and C&D wastes is needed. To this end, the goal of this paper is to propose a system dynamics model …

Life Cycle Assessment And Cost Evaluation Of Sustainable Production Technologies: A Parametric Approach For Complex Geometries In Architectural Design, Valentina Casarini, Simona Bovi, Alberto Speroni, Andrea Giovanni Mainini, Francesco Pittau, Matteo Cavaglia, Juan Diego Blanco Cadena, Tiziana Poli

CIB Conferences

Building design has to deal with complex geometries and surfaces arising from current trends and “New European Bauhaus” initiative that imagines a sustainable and inclusive future that is beautiful for eyes, minds, and souls. This also relates to the rise of new design paradigms, such as 'user-centred design', which includes customized optimization approaches. The increasing adoption of customized components and unique solutions raises valid concerns about the optimal use of energy and resources. The study carried out stems precisely from these needs and focuses on the life cycle assessment of the technologies currently available on the market to realize the …

Conppmf: Construction Datasets For Privacy-Preserving Mental Fatigue, Jianhuan Zeng, Xiao Li, Zenan Zhang

CIB Conferences

Construction workers’ unsafe behavior is the leading cause of on-site accidents, greatly influenced by mental fatigue. Existing available datasets for mental fatigue are scarce in construction. Moreover, collecting and using private data, such as facial images, bio-signals, and speech, raises significant privacy concerns, leading to difficulty in data collection during model implementation. To tackle these challenges, this research aims to introduce a replicable multi-modal dataset named ConPPMF to monitor mental fatigue on construction sites, focusing on worker comfort and privacy. The dataset comprises physiological data from smartwatches and time-synchronized visual data from cameras. Fatigue status is labeled through self-reported assessments …

Revitalisation Of Urban Heritage Sites Through Community-Based Facilities Management: The Case Of Botswana, Petunia G. Gaoalafe, Kathy A. Michell

CIB Conferences

This paper explores the role of community-based facilities management (CbFM) in the revitalisation and utilisation of heritage sites, focusing primarily on government-owned urban heritage sites in Botswana, particularly those that are facing dilapidation and/or obsolescence. In addition, it discusses CbFM through the confluence of its main pillars with that of placemaking. Existing research points to the insufficiency in the literature concerning an in-depth investigation into heritage CbFM that integrates placemaking principles in cities of the global South. The paper argues for and presents a theoretical framework that outlines the confluence of CbFM and placemaking for the holistic management and revitalisation …

Strategies For Mitigating The Challenges Of Post-Disaster Reconstruction Projects: A Systematic Literature Review, Alexander E. Omoraka, Temitope Egbelakin, Sittimont Kanjanabootra

CIB Conferences

The impacts of disasters range from social to physical, which comprise psychological impacts, economic impacts, casualties, damage to buildings and infrastructure, etc. While developing countries like Nigeria and Nepal are prone to suffering more human casualties, the effects of disasters in developed countries like Australia and Japan are felt more in buildings and infrastructure. Disasters leave the affected areas deprived of the capacity to function normally without support. Construction projects constitute the greatest loss component in the event of major disasters and thus render people homeless, insecure, and susceptible to unpleasant conditions. This makes post-disaster reconstruction a must in places …

Mapping Construction 4.0 And Sustainability For Innovation In The Construction Industry Of Developing Countries, Natalia E. Lozano-Ramírez, Nelly P. Garcia-Lopez

CIB Conferences

A country's inclusive and sustainable growth depends largely on efficient infrastructure, making it a crucial aspect of governmental, urban, and social decisions, particularly in developing countries. However, these regions face significant barriers to progress, such as low digitalization rates, limited adoption of technology, and socio-economic obstacles that hinder sustainable development. Addressing these challenges is vital to fulfilling the United Nations’ Sustainable Development Goals (SDGs) and requires strategic partnerships, innovative practices, and integration within the construction sector. Furthermore, Industry 4.0 represents a promising pathway toward sustainable, technologically advanced construction; however, its adoption in developing countries remains in the early stages and …

Offsite Evolution: Do We Really Understand The Potential Impact Of Technology On Industry 5.0?, Volkan Ezcan, Jack S. Goulding, Jeff H. Rankin, Brandon Searle, Mohammed Arif

CIB Conferences

Offsite Manufacturing (OSM) has repeatedly been extoled as a panacea solution for addressing ‘traditional’ construction challenges – ergo: time, quality and cost. However, it is posited here that there are grounds to challenge this preconception, particularly from a technology perspective, given industry’s need to align to Industry 5.0. Arguably (and somewhat contentiously), the industry is still in the process of trying to understand the concepts underpinning Industry 4.0. Thus, in order to understand this perceived disparity, this research used the antecedents from CIB’s Offsite Production and Manufacturing research roadmap (TG74 – publication 372) produced in 2013 as a starting point …

Systematic Conjunction Of Bim And Lean For The Enrichment Of Quality And Enhancement Of Sustainability In Construction Projects, Rashid Maqbool, Shaik Ahmed Irfan

CIB Conferences

Globally, several different kinds of construction techniques are in use. To guarantee the building plan is completed on schedule and with the least amount of environmental impact possible, each permitted business is putting innovative, cutting-edge techniques into practise. The joint use of BIM and lean concepts is among the most cutting-edge methods for monitoring and managing construction projects. The present study will show the benefits of BIM in the construction sector, which might give different construction organisations sustainability. Purposive sampling and both qualitative and quantitative methodologies have been applied in this situation. Professionals from the UK and Indian construction industries …

The Implementation Of Un Sustainable Development Goals Using Facilities Management Standards In South Africa, Steven Molloy, Yewande Adewunmi

CIB Conferences

The suite of ISO 41000 standards for facility management (FM) seeks to address 17 of the 24 UN sustainable development goals (SDG). Implementing these ISO systems will enhance SDG’s management and operations of facilities. In their daily actions, facility managers are in a unique position to guide facility and property owners in implementing sustainability measures without expensive construction changes to the building fabric. A viewpoint paper through the review of the literature and South African laws and regulations was undertaken to determine areas that incorporate SDGs into the management of facilities. South African institutional reports, and local standards were reviewed …

Evaluation Of Solar Adaptability In Transit Station Areas: A Comparative Case Study Of Tokyo And Hong Kong, Yufei Liu, Zhu Yuan

CIB Conferences

Due to climatic differences between cities, there is a complex relationship between urban form and sunlight comfort. In the compactly developed transit station areas, the higher development intensity further limits the space for urban form adjustment, making it difficult to maintain ideal sunlight conditions in all public spaces. This study aims to provide a method for assessing the solar adaptability of public spaces around rail transit stations. By constructing a betweenness-solar performance (B-S) model, the appropriateness of spatial form in station areas is assessed based on the balance between predicted pedestrian flows and sunlight conditions in urban public spaces. The …

Systematic Assessment And Dynamic Optimization Of End-Of-Life Carbon In Modular Integrated Construction, Xinping Wen, Yue Teng, Geoffrey Qiping Shen

CIB Conferences

Modular integrated construction (MiC) has emerged as an effective construction technique for mitigating carbon emissions from buildings. Despite the great efforts dedicated to quantifying the carbon generated by MiC buildings, the carbon values and savings potential during the end-of-life (EoL) phase have never been made explicit. This study aims to systematically evaluate and dynamically optimize the EoL carbon in relation to MiC buildings. An innovative carbon assessment model was developed by integrating system dynamics (SD) into the life cycle assessment (LCA) framework and then empirically validated through a case study of a steel residential MiC building in Hong Kong. The …

Impact Of Climate Change On Cities: Analyzing Building Energy Use In Future Climate Scenarios Through A Hybrid Computational Approach, Heng Quan, Semiha Ergan

CIB Conferences

Under global warming, cities need accurate predictions of building energy use to ensure energy supply and guide urban planning and policy decisions. Traditional data-driven methods struggle to project future scenarios due to the lack of training data reflecting anticipated climate conditions. This study presents a novel approach by integrating the Degree Day Model (DDM) with a Knowledge-Based Neural Network (KBNN). The DDM quantifies heating and cooling demands based on temperature deviations, providing domain-specific insights that enhance the KBNN's ability to extrapolate. We trained our KBNN using monthly energy consumption data from over a thousand New York City buildings, along with …

Automaticity And Mindfulness In Construction, Oluwaseun Samuel Olabode, Ikechukwu Sylvester Onuchukwu, Sebastien Helie, Behzad Esmaeili

CIB Conferences

Mindfulness is critical in enhancing workers’ safety and productivity by improving attention regulation. Attention is a key factor in task performance, influencing the balance between safety and efficiency in repetitive work environments. One factor that significantly impacts attention is skill automaticity, which is associated with reduced attentional requirements following repetition or practice. Despite the known relationship between mindfulness and attention, the interaction between mindfulness dimensions and automaticity remains unknown. This study addresses this gap by investigating how mindfulness influences attention during the transition from novice to expert in a repetitive construction task, providing insights into the interplay between mindfulness, attention, …

Integrating Flood-Resistant Design And Construction Strategies In Sustainable Homes In The Central Valley: Effective Approaches For New And Existing Structures, Matthew Gomes, Vivien Luo, Manideep Tummalapudi

CIB Conferences

As climate change intensifies, California’s Central Valley faces unprecedented weather events, including increased flood risks, leaving homeowners vulnerable, especially those in disadvantaged communities. This paper, based on a master’s thesis, examines effective strategies for integrating flood-resistant design and construction practices into new homes and retrofit solutions for existing homes by assessing local flood vulnerabilities. Employing a mixed-methods approach grounded in an extensive literature review, this study combines a homeowner survey with qualitative interviews with local design, construction, and development professionals in the residential sector. Insights from the survey informed the interview design, enabling a deeper exploration of challenges specific to …

Strategic Solutions To Align Contractor Capacities With Water Infrastructure Demands: A Case Study, Hamidreza Peivastehgar, Monty Sutrisna, Mostafa Jelodar, An Le

CIB Conferences

This research investigates solutions for bridging the gap between future water infrastructure demands and the contractor capacities in Watercare’s service zone. Using forecast models to evaluate urban infrastructure requirements and contractor capabilities, this study identifies significant discrepancies and explores three strategic approaches: capacity enhancement, project rescheduling, and external contractor attraction. The methodology includes data-driven forecasting, scenario analysis, and stakeholder consultation. Findings highlight the importance of proactive planning to ensure alignment, with implications for policy development and infrastructure management.

Lean Digital Management For Production Control, Kevin Mchugh Mr

CIB Conferences

The understanding of Lean Construction (LC) management philosophy is essential to making effective decisions in construction projects. LC's philosophy focuses on identifying and eliminating process waste while adding value to production. In construction management, timely decisions and instructions can positively impact projects. This paper will examine how lean and digital methodology can positively influence construction management. This research focuses on a digitised Last Planner System® (LPS) that provides a collaborative platform to make informed decisions promptly. Integrating numerous digital platforms, such as an Unmanned Aerial Vehicle (UAV) with 4K camera technology and virtual field walks using 360° images. The synergy …

Design Of An Iot-Based Intelligent Construction Energy Monitoring And Management System, Zhao Yahan

CIB Conferences

To address issues such as low energy efficiency and delayed energy consumption data collection during construction processes, we have designed and implemented an IoT-based intelligent construction energy monitoring and management system. The system adopts a three-tier architecture of the IoT, deploying various types of sensors in the perception layer to collect data on electrical energy, water resources, and equipment operation. Data preprocessing and local storage are performed through an edge computing unit. The network layer establishes a data transmission and processing center based on a cloud platform, while the application layer develops a web management platform using a microservices architecture …

Exploring Policy Influences On The Adoption Of 3d Concrete Printing Technology: A Hypothetical Model, Jimmy Zhou, Don A.S. Samarasinghe, James O B Rotimi Prof, Zhenan Feng

CIB Conferences

The global construction industry faces mounting pressure to innovate for sustainability and efficiency, with 3D concrete printing emerging as a transformative technology. Despite its potential, significant challenges such as technological immaturity and insufficient policy support hider widespread 3DCP adoption. Drawing on lessons from the adoption of Building Information Modeling in the United States and Hong Kong, this paper addresses these policy gaps by developing a conceptual framework that facilitates 3D concrete printing adoption.

Through a systematic review of 30 publications and a qualitative content analysis, this study identifies and synthesizes 17 key policy factors across six policy dimensions into a …

Point Cloud Completion For Mep Components Using Deep Learning Techniques, Hongzhe Yue, Qian Wang, Yangzhi Yan, Zhouzhou Yang, Mingyu Zhang

CIB Conferences

Point clouds are increasingly leveraged for as-built model reconstruction of facilities, and these reconstructed models play a key role in applications for digital twins and sustainable building. However, point clouds of Mechanical, Electrical, and Plumbing (MEP) systems often experience extensive occlusions, which heavily affect the performance of model reconstruction. To tackle this problem, this study adopts deep learning (DL)-based point cloud completion algorithms to complete occluded MEP point clouds. To overcome the scarcity of datasets, this study utilizes parametric BIM modeling and occlusion simulations to generate point cloud datasets for MEP components. Based on generated datasets, the effectiveness of PoinTr …

Embodied Carbon Reduction Through Material Reuse: A Case Study, Carolina Christovan, Cristiane Bueno

CIB Conferences

Among the existing methods to analyze the environmental performance of buildings, the Life Cycle Assessment (LCA) is presented with the purpose of evaluating the environmental impacts resulting from civil construction, from the extraction of raw material to the disposal of its waste. This sector is largely responsible for the emission of greenhouse gases, consequently, the future of construction is inclined towards making choices that prioritize environmental factors. This research conducts a case study to quantify the embodied carbon emissions avoided through the reuse of materials from the "Arena do Futuro," originally constructed for the 2016 Olympic Games in Rio de …

A Bim-Enhanced Approach To Evacuation Planning In University Environments For Optimizing Safety, Mohamed Elrifaee, Tarek Zayed, Ali Hassan Ali, Eslam Saleh Dr., Sulemana Fatoama Abdulai, Lee Max Jwo Lem

CIB Conferences

In an era of dynamic challenges, ensuring safety in large public spaces is crucial. The spatial layout and arrangement of obstacles in the built environment significantly impact evacuation performance. This research explores crafting evacuation plans and egress strategies, focusing on how spatial layouts and obstacles impact performance, with an emphasis on the complex environment of university campuses. This goal can be achieved by utilizing BIM, which serves as a persuasive resolution to the aforementioned challenges, thereby improving the evacuation planning procedure and significantly enhancing pedestrian safety. The BIM model focuses on providing comprehensive information about all possible evacuation routes accessible …

Examining Key Factors Influencing Safety Behaviors Of Young Workers In The Construction Sector, Qinjun Liu, Hayden Ward

CIB Conferences

Young workers form a significant portion of Australia’s construction workforce but face heightened risks due to inexperience and insufficient safety measures. The construction industry accounts for 20% of fatalities in this age group, exacerbated by factors such as inadequate training, peer influence, and poor workplace safety culture. Despite these risks, there is limited research on the safety behaviors of young construction workers. This study addresses this gap by investigating key factors influencing the safety practices of workers aged 18-24 in the Australian construction sector. Through a comprehensive literature review and correlation analysis, this research examines how individual characteristics and safety …

Evaluating Key Performance Resilience Indicators For A Public-Private Partnership In Critical Infrastructure, Godslove Ampratwum, Robert Osei-Kyei, Vivian Wy Tam

CIB Conferences

Many studies have advocated for public-private partnership (PPP) as a medium to build critical infrastructure resilience. Considering how PPP is greatly advocated for in critical infrastructure resilience, the performance measurement of public-private partnership has yet to be explored. As such this study aims to evaluate key performance resilience indicators (KPRIs) that can be used to assess the performance of PPPs formed to build critical infrastructure resilience. A structured questionnaire survey was conducted with experts in PPP and critical infrastructure resilience in Ghana. Mann-Whitney U test and Mean score ranking was used for data analysis. The results indicate respondents from public …

Using Case Studies To Determine Automatable Activities In Construction Bid Preparation, Oscar Kwame Kwasafo, Samuel Laryea, Neil Govender

CIB Conferences

The purpose of this study is to determine the automation potential of the key activities in the construction bid proposal preparation process. The activities were analyzed for their capability of being fully or partially automated based on a predetermined approach towards developing a bid automation model while aligning with the Sustainable Development Goals (SDGs) related to industry innovation and infrastructure. Case studies were conducted with two major engineering consulting firms in South Africa to identify and understand the key activities in the bid proposal preparation process. The research reveals that key activities like content review and requirements summary preparation, method …

Unlocking The Possibilities Of Blockchain In Procurement And Management Of Building Services Systems, Sachindra Hewavitharana, Srinath Perera, Xiaohua Jin, Krisanthi Seneviratne, Keivan Bamdad Dr

CIB Conferences

Building Services Systems (BSS) are fundamental to ensure a comfortable and safe living environment in buildings. These systems involve significant stakeholder engagement, lengthy lifecycles, and substantial financial investments, necessitating a systematic Procurement and Management (PM) approach to handle their inherent complexity. While Blockchain Technology (BT) has been proposed for various construction applications, its potential in BSS remains unexplored. This paper addresses this gap by identifying issues in the PM of BSS, categorizing them according to the RIBA Plan of Work 2020, and proposing a BT-based framework to resolve these issues. A scoping review method was conducted using Scopus and Web …

Impact Of Explainable Artificial Intelligence For Sustainable Built Environment, Prasad Perera Mr., Srinath Perera Prof., Xiaohua Jin A/Prof., Maria Rashidi A/Prof., Samudaya Nanayakkara Dr., Gina Yazbek Ms., Andrew Yazbek Mr.

CIB Conferences

Innovative and complex applications driven by Artificial Intelligence (AI) embedded systems have enhanced the efficiency, accuracy and sustainability of the built environment. Such solutions often face barriers to adoption due to the lack of trust, transparency, understanding, and inherent complexity. Explainable Artificial Intelligence (XAI) encompasses techniques and methodologies to make the decision-making processes of AI models transparent, interpretable, and comprehensible. The objectives of this study are to evaluate the potential of incorporating XAI techniques to provide solutions for the challenges and to enhance interpretability. The impact of XAI on promoting sustainable practices in the built environment is systematically analysed. Further, …

A Review Of Bim And Rfid Integration For Circular Economy In Construction, Igor T. Lopes, Yelda Turkan

CIB Conferences

The construction industry (CI) is at a pivotal point as sustainability becomes increasingly critical across all sectors. Digital technologies such as Building Information Modeling (BIM) and Radio-Frequency Identification (RFID) are emerging as powerful tools to drive efficiency and sustainability in construction processes. However, integrating these technologies within a circular economy (CE) framework presents significant challenges and opportunities. This systematic literature review (SLR) delves into the current state of using BIM and RFID tags to support circularity in the CI while investigating the potential of using digital technologies to develop strategies for resource management, waste reduction, and materials reuse. This SLR …

Impacts Of Circular Economy Practices On The Economy, Society And Environment: A Review In Construction Context, Iresha Gamage, Sepani Senaratne, Srinath Perera, Xiaohua Jin

CIB Conferences

The adoption of a circular economy (CE) model in the construction industry has been instrumental in increasing sustainability, particularly in contrast to the linear economy model. The economic, social and environmental (ESE) dimensions would be vastly impacted by converting traditional construction practices into CE practices. Understanding the relationships between the aforesaid CE practices in construction projects and their respective impacts on ESE is fundamental to successfully shifting towards a circular construction industry. Studies that shed light on this area are limited. Thus, this study aims to identify the relationship between CE practices and their respective ESE impacts to facilitate the …

Corporate Social Responsibility Assumed By Chinese International Construction Companies: Heterogeneities, Causes, And Evaluation, Hui Guo, Weisheng Lu

CIB Conferences

Chinese international construction companies (CICCs) are appearing as a major competitive force in the international market. However, there are limited studies exploring their corporate social responsibility (CSR) practices, which is, in fact, essential for informing CSR strategies. This research thus aims to explore CSR assumed by CICCs. Based on the coding instrument applied from CASS-CSR 4.0 (Chinese Academy of Social Sciences-Guidelines on CSR Reporting), a content analysis of 174 CSR reports of 22 CICCs from 2010 to 2019 was employed to undertake a candid evaluation of CICCs’ CSR practices. It found an enriching trend of CSR assumed by CICCs in …