Rafael Sacks

Rafael Sacks
Technion - Israel Institute of Technology | technion · Facuty of Civil and Environmental Enigneering - Structural Engineering and Construction Management Unit

PhD

About

242
Publications
237,972
Reads
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12,262
Citations
Additional affiliations
July 2015 - August 2015
Curtin University
Position
  • Researcher
September 2008 - August 2009
University of Reading
Position
  • Senior Researcher
October 2007 - present
Technion - Israel Institute of Technology
Position
  • Professor

Publications

Publications (242)
Conference Paper
Full-text available
Lean construction focuses on eliminating process and operational wastes. The reduction of waste improves environmental performance by reducing GHG emissions. This research quantified the impacts of lean construction and VDC in reducing physical and operational wastes related to partition walls. The researchers observed worker activities at construc...
Article
Full-text available
Semantic enrichment of Building Information Modeling (BIM) models supplements models with the implicit semantics for further applications. In this paper, we use the room classification task to develop, test and illustrate a novel approach to semantic enrichment of BIM models-representation of models as graphs and application of graph neural network...
Article
The internal or external attribute of building information modeling (BIM) objects is vital information for many BIM-based engineering analyses such as building energy analysis and cost estimation. Unfortunately, such information is often inaccurate, incomplete, or missing entirely in most BIM models. Manually checking, correcting, or inputting this...
Conference Paper
Full-text available
Although Building Information Modeling (BIM) is widely adopted in the Architecture, Engineering, and Construction (AEC) industry, difficulties in model interoperability remain, hindering domain-specific applications. Semantic enrichment supplements a model's semantic information automatically as an alternative approach to solve the problem. In this...
Chapter
BIM brings a paradigm change to the construction industry. Implementing building information modelling technology requires new ways of thinking and working. In this chapter, we explain what BIM is, how we work with BIM, and what value working with BIM provides, and we offer an overview of essential BIM terminology. First, we outline the basic conce...
Conference Paper
Full-text available
The growth and complexity of construction projects have motivated the construction industry to implement cutting-edge technologies and new approaches in design and construction, including advanced computer-based design and project management methods like building information modeling (BIM) and lean construction. This paper evaluates multiple constr...
Article
Ballard’s concept of work structuring for production planning in construction can be applied to improve production flow in construction projects formed by repetitive units with extensive customization. Customization can increase the value of repetitive units (apartments in a building, houses in an allotment, or stores in a shopping mall) forming a...
Article
Full-text available
Purpose The study aims to test, measure and quantify the impacts of lean construction and BIM implementation on flow in construction projects. Design/methodology/approach Detailed control data from a set of 18 high-rise residential construction projects executed between years 2011 and 2020 were analyzed using the construction flow index (CFI), a m...
Article
Purpose The paper aims to identify the effective constructability methods and tools that should be applied during the early project design stages to prevent specific constructability failures regarding project context. Design/methodology/approach Seventeen basic constructability problems were defined, 12 constructability implementation methods for...
Chapter
Full-text available
Most of the existing research on BIM implementation and benefits realisation has departed from a technocentric perspective and instead promoted the belief that the benefits of using BIM technologies are an inevitable outcome of adoption in and of itself. Recently, scholars have acknowledged that important links between implementation practices and...
Article
Full-text available
The concept of a “digital twin” as a model for data-driven management and control of physical systems has emerged over the past decade in the domains of manufacturing, production, and operations. In the context of buildings and civil infrastructure, the notion of a digital twin remains ill-defined, with little or no consensus among researchers and...
Article
Full-text available
Adoption of digital information tools in the construction sector provides fertile ground for the birth and growth of companies that specialize in applications of technologies to design and construction. While some of the technologies are new, many implement ideas proposed in construction research decades ago that were impractical without a sound di...
Article
Missing, incomplete, implicit, and/or incorrect information are major obstacles to automated code compliance checking in the construction industry. All existing platforms for automated code checking require users to extensively preprocess their input models to supplement missing information before checking can begin. Semantic enrichment using artif...
Article
Full-text available
Enhancing the earthquake behavioral responses and post-earthquake evacuation preparedness of building occupants is beneficial to increasing their chances of survival and reducing casualties after the mainshock of an earthquake. Traditionally, training approaches such as seminars, posters, videos or drills are applied to enhance preparedness. Howeve...
Article
Building Information Modelling (BIM) has been widely seen as bringing a paradigm change to the construction industry. However, scholars have acknowledged that neither widespread BIM implementation nor the envisaged systemic changes within the sector have taken place. Despite acknowledging that the industry’s conditions and embedded contexts shape i...
Conference Paper
Full-text available
Lean principles aim to improve construction through focus on value and waste elimination, which benefits environmental performance by reducing life cycle greenhouse gas (GHG) emissions and improving other environmental metrics. Although prior research identified relationships between Lean, BIM and sustainability, most studies were qualitative asses...
Article
Building information modeling (BIM) adoption is driven in part by the government and other large public procurement agencies mandating its use. A longitudinal study of BIM adoption in three major public agencies (two in the United Kingdom and one in Israel) tracked their BIM adoption actions and outcomes over a 3-year period, using a formal BIM ado...
Article
Full-text available
Road construction is fundamentally different to building construction, in terms of its products, the types of work and operations, and the resources used. One of the key differences from the point of view of planning and control of production flow is that roads are composed of geometrically continuous courses rather than discrete ‘products’, making...
Conference Paper
Full-text available
Automatic resource location monitoring in construction projects empowers managers to make data driven decisions that improve project workflow. Monitoring data can be processed to measure workflow quality and thus for better understanding of effectiveness and efficiency. We compare two methods for deployment of Bluetooth Low Energy (BLE) beacons for...
Conference Paper
Today’s model checking applications are capable of checking building models for conformance to code clauses which restrict explicit dimension values, but very little more than that. Complex, implicit code clauses are still beyond the scope of such applications. Much research and development is needed for semantic enrichment (to pre-process models f...
Preprint
Full-text available
Enhancing the earthquake behavioral responses and post-earthquake evacuation preparedness of building occupants is beneficial to increasing their chances of survival and reducing casualties after the main shock of an earthquake. Traditionally, training approaches such as seminars, posters, videos or drills are applied to enhance preparedness. Howev...
Article
Layout of the interior works during building construction is time consuming and error prone. Given the cost involved, both for initial layout and for later rework where errors occur, researchers have sought to automate the layout task. Some have adopted marker-less augmented reality methods using heads-up displays or cameras, and others have propos...
Article
En­hanc­ing evac­uee safety is a key fac­tor in re­duc­ing the num­ber of in­juries and deaths that re­sult from earth­quakes. One way this can be achieved is by train­ing oc­cu­pants. Vir­tual Re­al­ity (VR) and Se­ri­ous Games (SGs), rep­re­sent novel tech­niques that may over­come the lim­i­ta­tions of tra­di­tional train­ing ap­proaches. VR and...
Book
Building Information Modeling (BIM) offers a novel approach to design, construction, and facility management in which a digital representation of the building product and process is used to facilitate the exchange and interoperability of information in digital format. BIM is beginning to change the way buildings look, the way they function, and the...
Article
The need for extensive pre-processing to prepare model data for sophisticated BIM applications, such as automated code compliance checking, functional simulation and analysis, and information exchange, is a major obstacle to their use. Semantic enrichment offers an alternative, automated approach to manual pre-processing. We illustrate the use of m...
Article
Innovative solutions for rapid and intelligent survey and assessment methods are required in maintenance, repair, retrofit and rebuild of enormous numbers of bridges in service throughout the world. Motivated by this need, a next-generation integrated bridge inspection system, called SeeBridge, has been proposed. An Information Delivery Manual (IDM...
Article
Innovative solutions for rapid and intelligent survey and assessment methods are required in maintenance, repair, retrofit and rebuild of enormous numbers of bridges in service throughout the world. Motivated by this need, a next-generation integrated bridge inspection system, called SeeBridge, has been proposed. An Information Delivery Manual (IDM...
Article
Full-text available
Reinforced concrete bridges are a vitally important part of modern infrastructure. The status of this infrastructure needs to be monitored on a continuous basis in order to ensure its safety and functionality. This is currently being done by authorities worldwide via bridge inspection reports. The format and storage of these reports varies consider...
Article
Full-text available
Enhancing evacuee safety is a key factor in reducing the number of injuries and deaths that result from earthquakes. One way this can be achieved is by training occupants. Virtual Reality (VR) and Serious Games (SGs), represent novel techniques that may overcome the limitations of traditional training approaches. VR and SGs have been examined in th...
Article
Reinforced Concrete bridges are a vitally important part of our infrastructure. The status of this infrastructure needs to be monitored on a continuous basis in order to ensure its safety and functionality. This is currently being done by authorities worldwide via bridge inspection reports. The format and storage of these reports varies considerabl...
Book
Full-text available
Building Lean, Building BIM is the essential guide for any construction company that wants to implement Lean Construction and Building Information Modelling (BIM) to gain a strategic edge over their competition. The first of its kind, the book outlines the principles of Lean, the functionality of BIM, and the interactions between the two, illustrat...
Article
Object classification is a key differentiator of building information modeling (BIM) from three-dimensional (3D) computer-aided design (CAD). Incorrect object classification impedes the full exploitation of BIM models. Models prepared using domain-specific software cannot ensure correct object classification when transferred to other domains, and r...
Article
Semantic enrichment of building models adds meaningful domain-specific or application-specific information to a digital building model. It is applicable to solving interoperability problems and to compilation of models from point cloud data. The SeeBIM (Semantic Enrichment Engine for BIM) prototype software encapsulates domain expert knowledge in c...
Conference Paper
Full-text available
Enhancing evacuee safety is a key factor in reducing the number of injuries and deaths that result from earthquakes. This can be achieved by designing safer buildings taking into account behavioral factors and by training occupants. However, traditional approaches such as evacuation drills cannot be used in buildings in which occupants cannot easil...
Conference Paper
Full-text available
Semantic enrichment is a process of supplementing/correcting information in a poorly prepared BIM model. Object classifications are essential information, but are commonly missing or incorrectly represented when transferring a BIM model or creating a model using tools customized for other domains in design. Automated compilation of 'as-is' BIM mode...
Article
Many governments have begun to demand that large public facility agencies adopt and implement building information modelling (BIM) in their business processes. Some have published BIM guides. Most of these are technical specifications that are useful at the project level, but they provide no support for the organization-level adoption effort. On th...
Data
Established through the public-private partnership (PPP) model, Prince Mohammad Bin Abdulaziz International Airport in Medina is the first airport privatization in Saudi Arabia. It is the main entry point for visitors to the Kaaba and those arriving on pilgrimage to the two Holy Cities of the Islamic World. Developing the BIM models and integration...
Data
Innovative uses of BIM in the project included thorough exploration of design alternatives with immersive virtual reality, automated design-code checking of certain aspects using the Singapore Building Construction Authority's (BCA) e-plancheck system, 3D printing of landscape features for design and construction visualization, and sun path analysi...
Data
The BIM models typically prepared for design and construction use are often inadequate for FM use. They lack the equipment data and systems connectivity information needed to understand how failures in a device or system will impact other parts of the building and its users. This study looks at the work and information flow of the Janelia Research...