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C Mastrodonato, A Cavallaro, M Hannus, J Nummelin, N Jung

ICt for Energy Efficienct buildings: proposed approach for a stakeholders-based strategic roadmap

Abstract: ICT4E2B Forum project aims to bring together all relevant stakeholders involved in ICT systems and solutions for Energy Efficiency in Buildings. Moreover the project has the objective of identifying and reviewing the needs in terms of research and systems integration as well as at accelerating implementation and take-up. ICT4E2B Forum bases its roadmapping activities on the outputs of REEB project that has already developed a high-level roadmap on ICT for Energy Efficient Buildings. Starting from this expert-based work, ICT4E2B Forum intends to promote, through community building activities, a better understanding, a closer dialogue and a more active cooperation between researchers, end-users/practitioners, building owners, technology-suppliers, and software. The exploitation of ICT is consider the adding value in order to support informed decision-making (both human and automated) in the current delivery and in the use of sustainable and energy-efficient buildings and districts. By accomplishing these objectives, ICT4E2B Forum is mapping the sector-specific priorities into a common view and vocabulary, thereby enabling communication and understanding between experts in different sectors that need to join forces in order that fundamental improvements in energy efficient buildings can be achieved. All this coordination work will support in defining future research directions as well as in channelling efforts, while favouring consensus buildings on the roadmap itself.

Keywords: Energy-efficient buildings, ICT4E2B Forum project, REEB project, Strategic Roadmap, Stakeholder-based.

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Series: w78:2011 (browse)
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Carozza L,Bosché F,Abdel-Wahab M

Image-based localization for an indoor VR/AR construction training system

Abstract: Virtual /Augmented Reality (VR/AR) technologies have been increasingly used in recent years to support different areas of the construction industry. Their simulation capabilities can enable different construction stakeholders to evaluate the impact of their choices not only on the built environment, but also with regard to the correct execution of operational procedures. Training providers, such as Further Education (FE) colleges, can also enhance their trainee’s experience through the simulation of realistic construction contexts whilst eliminating health and safety risks. Current approaches for the simulation of learning environments in Construction, such as Virtual Learning Environment (VLEs), provide limited degree of interactivity during the execution of real working tasks. Whilst immersive approaches (e.g. CAVE-based) can provide enhanced visualization of simulated environments, they require complex and expensive set-up with limited practical interaction in real construction projects context. This paper outlines a localization approach employed in the development of an Immersive Environment (IE) for Construction training, cheaper than CAVE-based approaches and which has the potential to be rolled-out to the FE sector for maximizing the benefit to the construction industry. Pose estimation of the trainee is achieved by processing images acquired by a monocular camera integral with his head while performing tasks in a virtual construction environment. Realistic perception of the working environment and its potentially hazardous conditions can thus be consistently delivered to the trainee through immersive display devices (e.g. goggles). Preliminary performance of the localization approach is reported in the context of working at heights (which has a wide applicability to a range of construction trades, such as scaffolders and roofers), whilst highlighting the potential benefits for trainees. Current limitations of the localization approach are also discussed suggesting directions for future development.

Keywords: Image-based,localization,VR/AR,construction training

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Series: convr:2013 (browse)
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Conrad Boton, Sylvain Kubicki, Gilles Halin

Collaborative Construction Planning: Towards 4D Visualizations Adapted to Practitioners Requirements

Abstract: Managing the intervention of various actors during the construction phase is a recurrent issue in the construction sector. This is partly due to the multiplicity of stakeholders and the need to manage interfaces necessary for efficient planning and coordination of construction tasks. 4D CAD technology appears to be an innovative approach to answer such issues. It consists in combining a 3D model with the time dimension, in order to simulate the progress of works construction along the time.Our main hypothesis is that the use of 4D to support the actors’ collaborative work is not adapted enough to the need of the sector because the classical view (Gantt + 3D model) does not take into account the specific requirements related to particular usages (planning of interventions and reservations request for a contractor; simulation and integration of works’ interfaces for an engineer, etc..). It is therefore challenging to adapt the visualization to business needs of users.Developments in Human-Machine Interface and Information Visualization fields could allow us selecting user views properties (i.e. Structure, Quantity of information displayable, Graphical attributes, Content description, Interaction principles, Business view) and compose Coordinated Multiple Views. Therefore, the article propose a taxonomy to describe user views in order to setup a method for 4D visualization design, enabling to:1) Identify business practices (usages) related to the roles of different users, 2) Offer services tailored to different usages, and 3) Suggest visualization modes fitting each usage on the basis of our visualization model.In a case study we formalize a collaborative process to identify the usages of each practitioners involved in the collaboration construction process planning. It especially targets collaborative management of works’ interfaces. Then, after defining the required services, we suggest combining visualization methods suitable for each use in order to achieve views composition for each stakeholder.

Keywords: Construction process, Collaboration, 4D CAD, Human-Computer Interface, Information visualization, Business view, Model driven engineering

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Series: w78:2010 (browse)
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Dawood, Nash and Sikka, Sushant

Measuring the Effectiveness of 4D Planning as a Valuable Communication Tool

Abstract: Construction industry is very much information hungry and is often described as a slow adopter of new IT technologies. The importance of sharing and communicating information is becoming increasingly important through out the whole life of a construction project. Communication of information among different stakeholders is becoming critical as each stakeholder possess different set of skills. As a result, extraction, interpretation and communication of complex design information from drawings is a time consuming and difficult process. Advanced visualisation technologies, like 4D planning (3D product model integrated with schedules) have tremendous potential to increase the communication efficiency and interpretation ability of the project team members. Visualisation is the process of displaying information which assists in understanding and evaluating information. However, its use as an effective communication tool is still limited and not fully explored. The main objective of this research is to measure the effectiveness of communicating construction information of product and processes using 4D models compare to traditional 2D (two-dimensional) CAD drawing approach. An experimental exercise was developed and experiments had been conducted among participants in different age groups (11 to above 22 years) and profiles. The purpose of this research is to evaluate how much information participants are able to extract and retain in their mind by analysing two different graphical representation formats (2D CAD or 4D models). Participants had been divided in two groups (2D & 4D). One group used 2D CAD drawings describing the plans, elevation and sectional drawings, and a bar chart showing the construction schedule. While other group used a detailed 4D model of the house showing the construction sequence. Participants in both the groups are required to construct the same physical model of the house using a Lego kit (423 bricks) in the allotted duration of two hours. Outcomes of the research has provided the quantitative evidence that 4D group has performed better than 2D group by constructing 7% faster the physical model, spent 22% less time in extracting information from building information and reconstructed 77% less Lego bricks compare to 2D group. Participants in 4D group were able to communicate and coordinate better as compared to participants in 2D group.

Keywords: communication, 2D CAD, 4D planning, visualisation, Lego bricks

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Series: convr:2007 (browse)
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Fruchter R, Reiner K, Yen S, Retik A

KISS: knowledge and information slider system

Abstract: "Computer-based representation, capture, linking, visualization, navigation, and use of the information and knowledge created in a multi-disciplinary project environment during concept development, design, and construction remains a difficult problem. This paper proposes to present a methods and an integrated prototype, Knowledge and Information Slider System (KISS), for knowledge management and navigation of heterogeneous information that constitutes a design and build project memory. KISS proposes a product-based, context-based, Web-mediated approach for project, product, and process evolution capture, organization, and navigation. The prototype formally articulates and links the following four network levels: people network, design informal knowledge network, design and construction formal knowledge network, and construction site knowledge network. KISS enables key stakeholders involved in “building a building” to seamlessly slide among the different knowledge network levels to retrieve and re-use information in support of their decision process. The paper will present a real-world project as a case study to test the KISS prototype. The paper will present the KISS prototype that leverages the R and D efforts of the Stanford and Strathclyde research teams. More specifically, ·Recall and ProMem collaboration technologies developed at Stanford to support the concept generation, multi-disciplinary team interaction and design intent evolution capture; and ·Virtual Construction Simulation and Construction Site Telepresence information technologies developed at Strathclyde University to facilitate virtual reality modeling of the design and construction process, and mobile telecommunication to capture and link the construction site information with the office, respectively. Figure 1 illustrates these information and collaboration technologies as building block that can cover the spectrum of knowledge and information, from informal to formal, during design and construction from concept to construction. It will enable the stakeholders to seamlessly slide through the informal and formal knowledge created over time on-an-as-need basis"

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Full text: content.pdf (368,170 bytes) (available to registered users only)

Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.communication (0.033641) class.man-man (0.020884) class.synthesis (0.018070)
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Permission to reproduce these documents have been graciously provided by Icelandic Building Research Institute. The assistance of the editor, Mr. Gudni Gudnason, is gratefully appreciated


G. Brewer, T. Gajendran & C. Beard

Influences on the adoption of BPM/BIM: an Australian perspective

Abstract: BPM/BIM offer the possibility of faster, more accurate collaborative working thereby offering a solution to many current construction industry challenges, yet their usage remains frustratingly limited. It follows that there are likely be a number of influences and the aim of this research was therefore to identify those that could be considered relevant to the Australian construction industry. It first modeled candidate inhibitors identified from the literature, applying this to a single ‘critical case’ study project. Interviews undertaken with six key stakeholders were triangulated with two industry experts. Coding and abstraction of the data largely confirmed the efficacy of the model, which was subsequently found to be congruent with Brewer’s model of Innovation & Attitude (Brewer 2008) after qualitative meta-analysis was conducted.

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Series: w78:2009 (browse)
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Goulding J S, Alshawi M

Generic IT training: a process protocol model

Abstract: Construction companies have to strategically structure and focus their Business Strategy (BS) in order to maximise benefits. This requires detailed knowledge of the operating environment, stakeholders, resource implications and the management of risk. Information Systems (IS) and Information Technology (IT) can perform a crucial role by supporting and underpinning this strategy. A key element of the IT strategy is generic and specific IT training. These requirements must consider many issues, not least, resource implications, organisational culture, infrastructure and disparate training needs. These needs may also encapsulate both group and corporate issues, in addition to individual, operational, managerial and strategic requirements. This research investigates the use of a Process Protocol training model to analyse the key sequential stages (gates) and links needed, to satisfy, or close, the 'performance gap' between the BS, IS Strategy and subsequent IT Training Strategy.

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Full text: content.pdf (101,814 bytes) (available to registered users only)

Series: w78:1999 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.strategies (0.064027) class.commerce (0.013914) class.environment (0.011012)
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Permission to reproduce these papers has been graciously provided by the Research Press of the National Research Council of Canada. The support of the editors, particularly Dr. Dana Vanier, is gratefully appreciated.


Guillermo Aranda-Mena, John Crawford, Agustin Chevez, Thomas Froese

BUILDING INFORMATION MODELLING DEMYSTIFIED: DOES IT MAKE BUSINESS SENSE TO ADOPT BIM?

Abstract: Building Information Modeling (BIM) offers a revolutionising way to design, document and procure buildings. BIM promises to become a new international benchmark for building design and documentation across industry on the basis of improved efficiencies and collaboration capabilities. However, BIM requires rethinking current practices and process thus it calls for a paradigm shift in the way we procure, design and operate buildings. There seems no question that BIM methodologies are to become the norm in the long term but more factual evidence is required today to provide guidance to industry. This paper investigates current business drivers for BIM adoption by architecture and building engineering consultants.BIM needs to compete against well-ingrained methods to deliver projects in a fragmented and rather traditional industry. This paper investigates 47 value propositions for the adoption of BIM under a multiple case study investigation carried out in Australia and Hong Kong (Aranda-Mena et. al 2008). The selected case study projects included a range of public (1) and private (4) sector building developments of small and large scale. Findings were coded, interpreted and synthesised in order to identify the challenges and business drivers, and the paper focuses mainly on challenges and benefits for architectural and engineering consultants, contractors and steel fabricators. As a condition for the selection criteria all case studies had to be collaborating by sharing BIM data between two or more consultants / stakeholders. As practices cannot afford to ignore BIM this paper aims to identify those immediate business drivers as to provoke debate amongst the professional and academic community.

Keywords: BIM

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Series: w78:2008 (browse)
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Hussain K,Choudhry R

Building information modeling (BIM) uses and applications in Pakistan construction industry

Abstract: Building Information Modeling (BIM) is one of the most promising and recent developments in the construction industry. In Pakistan, the studies on BIM in academia and construction industry are not very common. This work has tried to find out the potential for BIM for its use and applications in the construction industry. The objectives of this research were to assess the potential of BIM for its use and applications in designing, coordinating, managing and execution of construction projects, the main reasons to take interest in BIM and the major tasks for which it is considered to be adopted. The methodology of this research was based on a questionnaire survey to collect data. The collected data were analyzed by conducting different statistical procedures to make inferences. Results of this survey indicated that there was awareness about BIM technology and its processes among the construction industry stakeholders for better visualization and to increase the capacity of design reviews, constructability analysis, and model based estimation and construction sequencing. Results further indicate that the use of BIM minimizes risk of discrepancies between orthographic views including plan, section, and elevation and provides improvement in preparation of budgeting, cost estimating and scheduling capabilities. Finally, the results of this study provide useful information to clients, consultants, contractors and other stakeholders in the construction industry.

Keywords: Building Information Modeling (BIM),Questionnaire,Virtual Building Construction,Object-Oriented CAD Systems

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Series: convr:2013 (browse)
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Ipek Gursel, Rudi Stouffs, Sevil Sariyildiz

A computational framework for integration of performance information during the building lifecycle

Abstract: Optimal indoor environments in terms of thermal comfort and indoor air quality are essential to maintain healthy and productive spaces. To address the high occupant comfort and energy efficiency requirements, advanced HVAC systems that have narrow performance boundaries are used. It is crucial to achieve the satisfactory operational level for systems and buildings by the adoption of performance based verification strategies. Performance-based approach requires the continuous verification of the actual performance against objectives during the building lifecycle. Building commissioning, building energy management systems (BEMS) and operations and main-tenance are effective tools to verify optimum building performance and have the potential to embed performance as-sessment into the building lifecycle. However, transfer of performance information from one method or building phase to another is difficult. A considerable amount of valuable information is lost due to the lack of an integrated framework that bridges different islands of information. This becomes most problematic during the operational phase, where de-sign data and performance trends are the main basis for decision making for facilities management staff. To achieve a persistent performance evaluation across phases and stakeholders, a flexible and seamless communication infrastruc-ture across disciplines and processes is necessary. The software architecture for a continuous performance verification and communication environment for indoor cli-mate and ventilation systems is introduced. The purpose of the model is to provide a framework that integrates commis-sioning, BEMS monitoring and inspection/maintenance activities, to avoid erosion of domain information during hand-overs and over time. The model retains continual information of building and makes this information available during building operations and [re]commissioning. A formal relationship structure is proposed between performance indices to support traceability of design and operations decisions. The paper will be concluded with reflections into the future work, which includes implementation and proposed strategies for validation of the model by test cases.

Keywords: building lifecycle performance assessment, building commissioning, BEMS

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Full text: content.pdf (741,211 bytes) (available to registered users only)

Series: w78:2007 (browse)
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