2013 Proceedings of the 30th ISARC, Montréal, Canada
Shigeomi Nishigaki, Katsutoshi Saibara, Shigeo Kitahara, Kenichi Fujino
Abstract: This paper presents quantitative indexes to evaluate operators bearing, difficulty in a task, and machine operability when an operator remotely controls a backhoe, and reports the use cases. The quantitative indexes would give her/him the opportunity to reflect on her/his works, and enable us to gain in-depth insight into the ...
Keywords: Quantitative indexes, Operators bearing, Difficulty in task, Machine operability, Handling skills of joysticks, Teleoperation of backhoe
Changyoon Kim, Hynsu Lim, Hongjo Kim, Hyoungkwan Kim
Abstract: Technological advances in mobile systems, such as smartphones and tablet computers, provide engineers with new opportunities to enhance the current facility management processes. Equipped with powerful system processors, touch screens, and wireless communication capabilities, mobile systems enable the experience of omnipresence of facility information. Building information modeling (BIM) also enables ...
Keywords: Building Information Modeling, Facility Management, Mobile Computing
Zhen Lei, Hosein Taghaddos, Ulrich (Rick) Hermann, Mohamed Al-Hussein
Pages 1-8
Abstract: In Alberta, Canada, heavy industrial projects are constructed using a prefabrication approach: spools and pipes are produced in the factory, and are assembled into modules that are transported to the industrial plants for installation by mobile cranes. Planning the onsite mobile crane operations is critical to the project budget and ...
Keywords: Industrial projects, heavy lifts, mobile crane, path checking, location selection
Vahid Faghihi, Julian Kang
Pages 9-16
Abstract: SatraPM is a web-based software package, aiming to help project managers to easily handle their construction projects via internet. This software is capable of handling all projects of an organization, in which all projects can be defined in EPS the same as users in OBS. A 3D accessing module links ...
Keywords: SatraPM, Web-based Project Management Solution, Online Project Control
Alireza Golabchi, Vineet R. Kamat
Pages 17-26
Abstract: The AEC (Architecture, Engineering, Construction) industry is an information intensive industry and all related processes employed during different phases of a project, including planning, designing, building, manufacturing, occupying, and maintenance, involve vast amounts of data that is used for a wide variety of purposes. Building Information Modeling (BIM) is a ...
Keywords: Building Information Modeling, Interoperability, Industry Foundation Classes
Sanat Talmaki, Vineet R. Kamat
Pages 27-43
Abstract: Construction and mining worksites pose unique challenges to workers and equipment operators due to their dynamic and unstructured nature. Narrow haul roads, crowded work spaces and presence of workers and equipment in close proximity, combined with large blind spots and overall poor visibility afforded to operators lead to collisions and ...
Keywords: Sensors, Visualization, Collision Detection, Excavation, Real-time
K. Dinh, T. Zayed
Pages 44-53
Abstract: The Ground Penetrating Radar (GPR) has been studied for a long time as a non-destructive evaluation (NDE) technology for inspection of concrete structures. Currently, the most widely used technique for interpreting GPR data of concrete bridge decks is the one that based on the amplitudes measured at various interfaces such ...
Keywords: Ground Penetrating Radar (GPR), Non-destructive Evaluation (NDE), Concrete Structures, Concrete Bridge Decks, and Bridge Inspection.
V. Vakiloroaya, R. Ismail, Q.P. Ha
Pages 54-65
Abstract: The paper aims at developing a hybrid solar-assisted air conditioner system for performance enhancement and energy efficiency improvement. To increase sub-cooling of the refrigerant at partial loads, we propose a new discharge bypass line together with an inline solenoid valve, installed after the compressor to regulate the mass flow rate ...
Keywords: Energy Saving, Linear Quadratic Regulator, Solar-Assisted Air-Conditioner, Sub-cooling
L. C. Lien, M. Y. Cheng
Pages 66-74
Abstract: Tower crane layout (TCL) is a typical construction site layout (CSL) problem, which is suitablefor a wide range of work assignments and site conditions. Tower crane is one of the key facilities for vertical and horizontal transportation of materials, especially for heavy prefabrication units such as steel beams, ready mixed ...
Keywords: Tower cranes layout, swarm intelligence, bee algorithm, particle swarm optimization, particle bee algorithm
K. Iturralde, Thomas Bock
Pages 75-83
Abstract: The topic of this article is the automation and robotization in refurbishment processes of industrial buildings. The need to mold these production spaces is quite universal. Particularly in the regions with a high industrial development and with a lack of buildable land, there is a need to convert this kind ...
Keywords: Refurbishment, efficiency, energy, industrial buildings, robotic environment
K. Iturralde, Thomas Bock
Pages 84-91
Abstract: The article discusses the possibility of automation in refurbishment processes of social dwelling built from 1950 to 1970. These massively produced buildings were mostly designed prior to the law enforcement regarding thermal insulation or accessibility. Nowadays, many of these buildings are being retrofitted. The article focuses on the works in ...
Keywords: Renewal, façade, hanging robot, double facade
D. Rylander, J. Axelsson
Pages 92-101
Abstract: The operation of Quarry and Aggregate sites are similar to factory production, since it contains sequential production processes, tasks and activities to produce the output product. Compared to the plant though, the quarry processes are generally not synchronized and controlled towards the overall throughput of the site in real time. ...
Keywords: IT Applications, Quarry Operation, Lean, Wireless Communication, Automation, Construction
J.H. Chen, M.C. Su, J. Chen
Pages 102-109
Abstract: Remote sensing technologies have been applied to numerous fields and already benefited those in improving efficiency and recognition accuracy. Change of streamflow can be devastating to residents living along riversides. Still it is difficult to detect such deathly change in large area scale by traditional field surveys. The research aims ...
Keywords: Remote sensing, RGB image, Disaster prevention, Automatic detection, Pattern recognition.
S. Jain, M. Phadtare
Pages 110-118
Abstract: Construction industry is considered as labour intensive, having shortage of skilled labour, unsafe with large number of industrial accidents. Construction industry requires high technology automation products (Robots) for improving productivity, safety, quality etc. Robots are developed by various countries in different areas like demolition, earthwork, bridge, tunnels, road work, underwater ...
Keywords: High technology products, robots, construction industry, adoption, India, SAM
K. Stankiewicz, D. Jasiulek, J. Rogala-Rojek, S. Bartoszek
Pages 119-129
Abstract: Projects as regards state-of-the-art mechatronic systems aiming at increase of safety in the mining industry and at improvement of coal production technologies, which have been completed at the KOMAG Institute of Mining Technology, are presented. These projects cover automation, monitoring and visualization systems, systems for implementation of artificial intelligence techniques, ...
Keywords: Mechatronics, Control, Automation, Monitoring
H. Golzarpoor, V. González, M. Poshdar
Pages 130-139
Abstract: Life Cycle Analysis (LCA) is a methodology for evaluating the environmental impacts associated with a product during its life cycle. LCA is identified as the most reliable method for verifying environmental impacts; however, current LCA-based approaches have certain limitations for environmental analysis of construction products. Integration of the LCA methodology ...
Keywords: Discrete Event Simulation, Life Cycle Analysis, Environmental Analysis, Construction Management
Luke Meers, Stephen van Duin, Matt Ryan
Pages 140-149
Abstract: Roadway development rates in Australian underground coal mines are failing to keep pace with modern longwall systems and are unlikely to sustain further improvements in longwall productivity into the future unless step change improvements to roadway development equipment and practices are made. Bottlenecks which limit and constrain improved production and ...
Keywords: Automation, robotics, manipulation, roadway development, roof support, monorail, consumables, mining
Stephen van Duin, Luke Meers, Gary Gibson
Pages 150-159
Abstract: As productivity in coal extraction demands increase in underground coal mines, the
industry is faced with finding new ways to support production without jeopardising safety. In modern mines the capacity and scale of longwall coal extraction has steadily increased to a point that support processes are failing to keep pace. ...
Keywords: Hard automation, roadway development, integrated system, strata support, manipulation
Sang-Kyun Woo, Kyung-Jin Kim, Ki-Jung Kim, Byong-Don Youn
Pages 160-167
Abstract: The electric power conduit (EPC) in Korea has been constructed since 1978. Facing the challenge of safety and sustainability of the EPC, it is urgent to develop an inspection strategy and maintenance system for the structure based on the concept of life-cycle management. This paper introduces the newly developed mobile ...
Keywords: Mobile, Safety inspection, Diagnosis, BIM, USN, RFID, LBS
O. Lundhede, O. Pettersson
Pages 168-178
Abstract: Today, systems and machinery usually are designed to meet only one specific customers requirements. One reason for this is that underground automation and smart functions are often developed tightly together with a customer. This is natural, since risk and cost can be shared between the customer and the supplier. Nevertheless, ...
Keywords: Automation in mining, Robotics
Hung-Ming Chen, Chuan-Chien Hou, Tsung-Hsi Lin
Pages 179-186
Abstract: This paper presents a Cloud-based system framework for providing a web-based building information model (BIM) service. Cloud computing technologies were used to develop a BIM data center, which can handle the big data of massive BIMs using multiple servers in a distributed manner. In addition, the system allows multiple users ...
Keywords: Building Information Model, Cloud Computing, WebGL, Hadoop, IFC
A. Golabchi, M. Akula, V. R. Kamat
Pages 187-197
Abstract: Building Information Modeling (BIM) is an increasingly popular method for generating and managing facility information during the life cycle of a building, ranging from facility conceptualization, through design, construction and its operational life. Organizations involved in Facility Management (FM) have the opportunity to use BIM as a knowledge repository to ...
Keywords: Facility Management, Building Information Modeling, Automation
S. M. Moon, S. W. Hwang, S. M. Yoon, J. HUH, D. Hong
Pages 198-205
Abstract: Today, underground exploration is spotlighted as an infinitely developable area. For this purpose, many tunneling technologies were created. And until this very day, many techniques are being developed for more efficient underground movement. Although previous technologies have been developed and now being used in various forms like TMB, struck propulsion ...
Keywords: Burrowing robot, Underground locomotion, Bio-inspired robot
J. Huh, S. M. Moon, S. W. Hwang, S. M. Yoon, D. Hong
Pages 206-212
Abstract: Recently, there is growing trend to build the high-rise and install curtain walls. Following this trend, we developed robot for building wall cleaning work, which moves along Built-in guide rail of building. Because it moves attached at building wall for cleaning work, it can be seriously affected by potential threats, ...
Keywords: Building wall cleaning, Fail-Safety
A. Burduk, T. Chlebus, P. Stefaniak
Pages 213-218
Abstract: The traditional approach to managing information flow between a mine underground and overground, applied in copper mines of KGHM Polska Miedz S.A., is mostly based on exchanging spoken information using the mine telephone network and printed documentation. This way of information flow significantly influences effective use of time of a ...
Keywords: information flow, ERP system, electronic data exchange
Min-Yuan Cheng, Yu-Wei Wu, Jhao-Bo Hsu
Pages 219-228
Abstract: Landslides not only cause interruption of road traffic but also cause damage to passing by vehicles and injure people in Taiwan. Due to the budget limitation of government, the overall assessments and maintenance of all road slops cannot be fulfilled. Priority of road for maintenance is a crucial task for ...
Keywords: Slope, Mountain-Roads, Probability of Landslides, Risk Analysis, Damage Evaluation
F. Bosché, Y. Turkan, C.T. Haas, T. Chiamone, G. Vassena, A. Ciribini
Pages 229-239
Abstract: Previous research has shown that Scan-vs-BIM systems are powerful to provide valuable information for tracking structural works (progress, quality, safety). However, the transferability of this capability to other construction areas such as MEP works has not been assessed so far. Comparatively, the construction of MEP systems, in particular pipes and ...
Keywords: Construction, MEP, Scan-vs-BIM, Laser Scanning, as-built status, percent built as designed
E. Quaquero, C. Argiolas, F.Melis, A. Carbonari
Pages 240-247
Abstract: This article reports on the current state of an ongoing research project which is aimed at implementing intelligent models for hardly predictable hazard scenarios identification in construction sites.
As past evidences showed that no programmatic action can deal with the unpredictable nature of many risk dynamics, we tried to survey on ...
Keywords: Intelligent models, pervasive sensors, health and safety, Bayesian networks, construction sites
A. Vasenev, T. Hartmann, and A.G. Dorée
Pages 248-256
Abstract: The quality and durability of asphalted roads strongly depends on the final step in the road construction process; the profiling and compaction of the fresh spread asphalt. During compaction machine operators continuously make decisions on how to proceed with the compaction accounting for projectspecific aspects as: ambient conditions, road geometry, ...
Keywords: Visualization, tacit knowledge, road compaction, rolling pattern, virtual reality
S. Bergquist, C. Grante, J. Fredriksson, J. Sjöberg
Pages 257-266
Abstract: In this paper, it is investigated how different types of automation would affect the safety for workers in asphalt paving. The risk for the workers on road construction sites is consistently high in comparison to the average risk of the working population. Automation has been suggested as an alternative for ...
Keywords: Automation, safety, active-safety, roadside construction, asphalt paving, accident analysis
Min-Yuan Cheng, Nhat-Duc Hoang, Nai-Wen Chang
Pages 267-274
Abstract: Heavy rainfall and typhoon oftentimes cause the collapse of hillslopes across mountain roads. Disastrous consequences of slope collapses necessitate the approach for predicting their occurrences. In practice, slope collapse prediction can be formulated as a deterministic classification problem with two class labels, namely collapse and non-collapse. Nevertheless, due to the ...
Keywords: Slope Collapse Prediction; Bayesian Inference; K-Nearest Neighbor; Probabilistic Classification
S. Razavialavi, S. AbouRizk
Pages 275-284
Abstract: In the planning phase of every construction project, layout of temporary facilities is a crucial task; site layout can affect safety, travel cost and time, construction productivity, and space utilization. However, site layout planning can be a complicated problem, due to the interdependency of influencing factors. Although interaction among activities ...
Keywords: Site layout planning, Simulation, Layout optimization, Construction preplanning
C. A. Ingram, J. A. Marshall
Pages 285-295
Abstract: The Cigar Lake ore body is a high-grade uranium deposit situated within water-saturated sandstone. In order to extract the uranium ore remotely, ensuring minimal radiation dose to workers, and also to access the ore from stable ground, the Jet Boring System (JBS) was developed. This method of mining involves drilling ...
Keywords: ToF camera, C-ALS, Point Cloud Library, ICP, Registration, Cavity Survey, Jet Boring
O. Kodym, V. Kebo, V. Kohut, T. Martoch
Pages 296-303
Abstract: The paper has focused on possibilities of interconnecting information sources concerning monitoring & control of mining industry technical processes (TP), and the related safety hazards. The key issue is the comprehensiveness of the information presented to users. Information can be presented by virtual reality means, when the seemingly true presentation ...
Keywords: Information technology, mining process, Internet of Things, process control
Yutaro Fukase, Hiroshi Kanamori, Shinich Kimura
Pages 304-312
Abstract: Various types of service robots have recently been developed for guarding facilities, caring for the elderly, carrying objects, and cleaning buildings. As barrier-free facilities improve and their use expands, these robots have more space within which to move inside buildings. Yet robots that move autonomously rely on position-detection systems. Though ...
Keywords: Self-localization system, Matching algorithm, Space technology
Engin Burak Anil, Burcu Akinci, James H. Garrett, Ozgur Kurc
Pages 313-320
Abstract: Objective, accurate, and fast assessment of damage to buildings after an earthquake is crucial for timely remediation of material losses and safety of occupants of buildings. Laser scanners are promising sensors for collecting geometrical data regarding the damaged states of buildings, as they are able to provide high coverage and ...
Keywords: Earthquake; Damage assessment; Laser scanning; Crack detection; Reinforced concrete frames
R. Liu, R. R. A. Issa
Pages 321-328
Abstract: As Building Information Modeling (BIM) becomes widely adopted by the construction industry, it holds undeveloped possibilities for supporting Facility Management (FM). Some FM information systems on the market claim to address the needs for FM requirement. However, the question of whether the functionalities provided by the current BIM-based FM software ...
Keywords: Building Information Modeling, Facility Management, Design for Maintainability
Yu-Min Cheng, I-Chen Wu
Pages 329-336
Abstract: Over the past two years, the construction industry has increasingly recognized the benefits and capabilities of building information modeling (BIM) for information integration, visualization and parametric design, reducing the duplication of work and complexity of interface integration, while significantly saving both time and cost. However, due to the variety of ...
Keywords: Building Information Modeling (BIM), Industry Foundation Classes (IFC), Parametric,
Heterogeneous Systems, Data Exchange and Sharing
Yi-Chun Lin, Shin-Hsun Chou, I-Chen Wu1
Pages 337-344
Abstract: Mechanical/Electrical/Piping (MEP) systems, due to their complexity and diversity, are the most intricate part of building construction. This being the case, Combined Services Drawings (CSD) and Structure, Electric and Mechanic(SEM) drawings can ensure that all coordination issues are resolved prior to construction. Construction companies attempt to apply Building Information Modeling ...
Keywords: BIM, CSD, SEM, Conflict Detection, Impact Assessment
R. S. Adhikari, O. Moselhi, A. Bagchi
Pages 345-356
Abstract: This paper presents an innovative computer vision method for condition assessments of bridges with multiple defects in bridge elements using digital images. This work utilizes 3D model of existing bridges and overlays digital images on 3D model to simulate on-site visual inspection. The analysis of element condition index (ECI) of ...
Keywords: Digital Images, Visual Inspection, Condition Index, Distress types, 3D visualization
R. S. Adhikari, O. Moselhi, A. Bagchi
Pages 357-367
Abstract: The changes in defects patterns or in element condition index during visual inspection of bridges are primary concerns for inspectors. This paper presents a new approach for change detection of defects in bridges by identifying changes in texture patterns through spectral analysis of digital images. The commonly used method for ...
Keywords: Digital Images, Visual Inspection, Change Detection, Spectral Analysis, Bridge Inspection, Image Difference
Yasser Mohamed, Mostafa Ali
Pages 368-376
Abstract: Daily field management of earthmoving operations requires quick and regular decisions for allocating available equipment to different jobs on a project. A general foremans day starts with matching several activities with a suitable set of available equipment to achieve the highest productivity and lowest unit cost. Usually, this decision-making process ...
Keywords: Earthmoving, Resource Allocation, Simulation, Optimization
E. Trickey, D.J. Lucifora, P. Wan, A. Scott
Pages 377-386
Abstract: In the mining industry there exists a constant drive for increased safety and productivity and decreased operating costs. This acts as a driver for implementing advanced technology. As more and more mining operations turn to new technologies, an observed bottle-neck for technology advancement has been the limitation of machine vision ...
Keywords: LiDAR, automation, mining, machine vision
SangHyeok Han, Shafiul Hasan, Zhen Lei, Mohammed Sadiq Altaf, Mohamed Al-Hussein
Pages 387-394
Abstract: Selecting the best possible cranes and identifying spatial conflict-free locations on sites can result in productivity and safety improvements for large-scale industrial construction projects. In the current practice, experienced lift engineers select cranes based on the heaviest lift and/or the largest lifting radius of the identified crane. This practice is ...
Keywords: Optimum crane selection, Crane selection matrix, Visualization, Heavy structure
I. Bakry, Dr. O. Moselhi, Dr. T. Zayed
Pages 395-403
Abstract: Uncertainty is an inherent characteristic of construction projects. Neglecting uncertainties associated with different input parameters in the planning stage could well lead to misleading and/or unachievable project schedules. The objective of this paper is to present a new approach towards scheduling repetitive construction projects while accounting for uncertainty. The paper ...
Keywords: Repetitive projects, fuzzy scheduling, time buffers, uncertainty
Magdy Ibrahim, Osama Moselhi
Pages 404-416
Abstract: This paper presents experimental design and development of a low-cost remote sensing hardware designed to support automated site data acquisition for near real-time progress reporting of construction operations. The developed hardware utilizes open source microcontroller equipped with multiple sensors that include 3D accelerometer, GPS, Data logger and Bluetooth. The use ...
Keywords: On-site data acquisition, Microcontroller, Wireless sensor network
David Morley, Tim Joseph, Ming Lu
Pages 417-425
Abstract: This paper considers the ideal truck-excavator combination, defined as the combination resulting in the lowest direct unit cost, in consideration of multiple haul scenarios characterized by different haul distances, material and equipment availability. Through the application of Monte Carlo simulation, selected for its unique ability to handle the uncertainty of ...
Keywords: Earthmoving, fleet selection, heavy civil construction, mining, Monte Carlo simulation
Kazuhide Nakaniwa, Nobuyoshi Yabuki, Yukio Abe, Daisuke Nishi
Pages 426-434
Abstract: In this research, we devised a measurement method using total stations (TSs) which have the Baum which is a concentric circle reticle, as substitute for crosshairs. The Baum owes its name to the similarity between the concentric circles and trees (Baum in German). By setting one circle on both of ...
Keywords: Total station, reticle, piling work, non-prism, cylindrical structure
Nobuyoshi Yabuki, Takashi Aruga, Hiroshi Furuya
Pages 435-447
Abstract: Building Information Modeling is a prevailing methodology in the building industry and half (by length) of the world's shield tunnels are in Japan. Accordingly, for shield tunnels from 2005 to 2007, we developed a product model called IFC-ShieldTunnel, which is based on Industry Foundation Classes (IFC), in order to meet ...
Keywords: Tunnel, Product model, Interoperability, IFC, Schema
J.Gaparík, L. Paulovicová, L. Prokopcák, M. Gaparík
Pages 448-458
Abstract: The optimal selection of machine or machine group for building processes is very important role of building planner during the process of building planning. During this process building planner have to analyze several factors influencing the final effective decision concerning this problem. There are several factors and criteria for effective ...
Keywords: Optimization, multi-criteria, earthwork machine
H. Alzraiee, O. Moselhi, T. Zayed
Pages 459-467
Abstract: Traditional planning methods such as CPM and PERT have been useful tools to manage construction projects. However, the underlying model of these traditional methods often seems to fail to represent real projects as they tend to assume no interrelationship between project components. In reality, project components have complex dynamic feedback ...
Keywords: Dynamic Planning, Discrete Event Simulation, System Dynamic, Construction
D. Holz, A. Azimi, M. Teichmann, S. Mercier
Pages 468-477
Abstract: In this work we present a novel level set-based model for the real-time simulation of soil deformations. A level set defined by a signed distance function and sampled in a regular 3D grid represents and tracks the soil volume under deformation. Moving away from classical 2.5D heightfield representations of soil ...
Keywords: Physics-based simulation, Computer graphics, Soil mechanics, Deformable surfaces, Virtual reality
O. Moselhi, Z. Popic
Pages 478-487
Abstract: This paper describes a method for selection of most suitable project delivery systems for capital projects. It expands upon the method advanced by the Construction Industry Institute (CII) in 2003, and incorporates additional decision criteria and project delivery systems in a multi-tier decision computational platform. The paper integrates the analytical ...
Keywords: Project delivery systems, Decision support, Multi-attributed, Capital projects, Analytical hierarchy process
O. Moselhi, R. Azarm
Pages 488-496
Abstract: Material can be seen as the fuel needed to execute the project from inception to completion. Material installed provides good indicators of progress achieved onsite vis-a-vis project schedule performance. It correlates well with the role of the schedule performance index (SPI) of the earned value method (EVM). Material is recognized ...
Keywords: Material Status Index, Schedule Performance Index, critical activities, EVM, material management
A. Atef, O. Moselhi
Pages 497-505
Abstract: Vulnerability is a measure of the extent to which a community, structure, services or geographic area is likely to be damaged or disrupted by the impact of particular hazard. Current asset management practices focuses on studying factors that affect performance of isolated infrastructure networks and model a set of actions ...
Keywords: Vulnerability assessment, Interdependency assessment, ArcGIS, Fuzzy neural networks
Hao Zhang, Seokho Chi
Pages 506-513
Abstract: Site inspection is an important component of safety management system. In current practices, the inspectors evaluate the safety condition on a construction site with the assistance of a standardised checklist. However, the checklist emphasizes on evaluating the implementation of safety management system, but provides limited task-specific check items for assessing ...
Keywords: Construction safety inspection, Safety information database, Risk identification, Decision support
Ju-hyung Ha, Youn-su Jung, Yun-gu Cho
Pages 514-521
Abstract: New automated curing system for mass concrete has been developed to improve the quality of concrete structure and to save construction time and cost. The principle of this system is the automated water circulation system of heated curing water. Applied curing water on the surface of mass concrete keeps the ...
Keywords: Automated curing system, mass concrete, thermal crack occurrence
Suman Giri, Po-Hsiang Lai, Mario Bergés
Pages 522-530
Abstract: Non-Intrusive Load Monitoring (NILM) is a method of extracting appliance-level power consumption information from aggregate circuit-level data with the goal of giving users feedback regarding their energy consumption so they can take control of their consumption habits. In this paper, we present a novel algorithm for classification of on and ...
Keywords: Non-Intrusive Load Monitoring, Energy Disaggregation, Energy Efficiency, Machine Learning,
Power Estimation, Normalization.
A. Alwasel, K. Elrayes, E. Abdel-Rahman, C. Haas
Pages 531-539
Abstract: Musculoskeletal disorders (MSDs) threaten the wellbeing and livelihood of a large number of construction workers incurring a significant cost to society. We present a new method to monitor and diagnose MSD risks in the workplace. The sensing unit of the system is an optical encoder encompassed within a non-intrusive exoskeleton ...
Keywords: Motion tracking, Human joints, Angle measurement, MSD, Robotics, Gerontology
Masaharu Moteki and Kenichi Fujino, Akihiko Nishiyama
Pages 540-547
Abstract: At present, the Unmanned Construction System (UCS) is adapted on initial operation against the disaster. For instance, it has been used in Unzen. When the scale of the disaster is big, or the danger to a person is big, the UCS is expected as a quick and safe construction technology. ...
Keywords: Remote control technology, IT construction system, Disaster, Construction machine, Hydraulic excavator,
Spatial perception, Sense of depth
H. Lee, T. Park, H. Jeong, H. Kim
Pages 548-554
Abstract: Recently, the effects of global climate changes have become top concerns for governments decision making regarding infrastructure investments. Extreme weather events that exceed the capacity of existing systems have considerably increased in frequency, and the potential effects of changing trends in temperature and rainfall on infrastructure are difficult to ignore. ...
Keywords: Adaptation, climate change, infrastructure, future climate scenario
Y. Sun, X.S. Li, H. Guo
Pages 555-563
Abstract: The reliability of mining systems is generally low due to their harsh working conditions. Currently, efforts for improving mining system reliability are often made in isolation. This practice could substantially limit the effectiveness of the efforts on overall reliability improvement of the mining system. To enhance the overall reliability of ...
Keywords: Reliability, mining system, integration, failure rate, safety, productivity
Mengmeng Gai, Yong Cho
Pages 564-571
Abstract: This paper introduces a model-based automatic object recognition and registration framework to assist heavy equipment operators in rapidly perceiving 3D working environment at dynamic construction sites. A video camera and a laser scanner were utilized in this study to rapidly recognize and register dynamic target objects in a 3D space ...
Keywords: Equipment, 3D, point cloud, object recognition, construction safety
Y. Zhang, M. Al-Bataineh, J. Zou, S. Fernando, S. AbouRizk
Pages 581-588
Abstract: The North Saskatchewan River flows southwest to northeast through a 22-km-long valley in the City of Edmonton, supplying the drinking water to dozens of downstream communities. During heavy rains, combined sewers occasionally overflow into the river, which has a significant negative impact on the water quality and the sensitive environment. ...
Keywords: Drainage Construction, Construction Management, 3D Modeling, Animation, Design Review
Kenichi Fujino, Keiji Nagatani, Shinichi Yuta
Pages 589-595
Abstract: Severe disasters have struck Japan in recent years. Following these disasters, construction robots have played important roles in investigation and restoration work in the disaster regions. To be applied in this way, construction robots require many functions according to the purpose of their use in each case. There are clear ...
Keywords: Disaster countermeasure, exploration robot, unmanned execution system, field robotics
Farid Mirahadi, Tarek Zayed
Pages 596-607
Abstract: Forecasting productivity of construction operations is a difficult but crucial task in planning construction projects. Over the past decades, many models have been developed to forecast productivity for different construction operations. Models made up of several functional relations and controlled by a specific number of control rules are more in ...
Keywords: Productivity forecasting, Fuzzy reasoning, Fuzzy clustering, Neural network, Clustering-based model, Genetic algorithm, Multi-dimensional membership function
J. B. Kwon, H. S. Lim, T. H. Kim, M. S. Cha, H. H. Cho, K. I. Kang
Pages 608-617
Abstract: For improvement in the productivity of tall building projects, table formwork is one of the main methods that have been adopted for slab formwork. Because the table formwork method is an equipment-oriented construction method, the type of lifting equipment and method of operation considerably affects the productivity and cost of ...
Keywords: Tall building, Tower crane, Independent lifting system, Productivity analysis, Simulation, CYCLONE
Ali Montaser, Roya Azram, Osama Moselhi
Pages 618-625
Abstract: This paper presents an experimental study conducted to facilitate the use of RFID on construction job sites. The study focuses on deployment settings to provide data acquisition with higher accuracy for indoor location sensing. It provides extension to the state-of-the-art in this field as it addresses the impact of metal ...
Keywords: RFID, Indoor location sensing, Experimental study, Deployment settings, RSSI, Proximity method
A. Motamedi, M. M. Soltani, A. Hammad
Pages 626-634
Abstract: Indoor localization has gained importance as it has the potential to improve various processes related to the lifecycle management of facilities and to deliver personalized and location-based services. Radio Frequency Identification (RFID) based systems, on the other hand, have been widely used in different applications in construction and maintenance. This ...
Keywords: Asset localization, RFID, Location-based services, Pattern matching, Clustering
C. Kumar, S. M. AbouRizk, Y. Mohamed, H. Taghaddos, U. Hermann
Pages 634-642
Abstract: Scaffolds are temporary structures built to facilitate construction activities on site. A considerable amount of resources are allocated to scaffolding on industrial projects. Variability in geometrical features and space accessibility of structures on industrial projects, in addition to involvement of different trades that share the use of scaffolds, requires an ...
Keywords: Scaffolding, Industrial Construction, Estimation
Sh. Karimidorabati, C. T. Haas, J. Gray
Pages 643-652
Abstract: In the construction industry, project changes constitute a major cause of delay, disruption, cost increases, poor quality and unsatisfying performance. They are also known as a main factor of litigation between the owners and constructors. Construction projects are essentially process-based, and with the critical role of Information Technology (IT) in ...
Keywords: Change Management, Change Requests, Simulation, Workflow
J. Lee, W. Jeong, V. Faghihi, J. Kang
Pages 653-660
Abstract: As the usage of BIM increased in the construction industry, some construction owners started exploring the use of BIM for maintaining their facilities. Construction Operations Building Information Exchange (COBIE), a spreadsheet data format suggested in 2007 to manipulate building information, is considered as one of the solutions that would facilitate ...
Keywords: BIM, COBIE, automatic generation, Revit, Facilities Management
J. Y. Kim, C. H. Caldas
Pages 661-668
Abstract: This paper presents a novel action recognition method for observing human workers using interactions between actions and related objects on an internal construction site. This method can be used to measure work rates for labour productivity monitoring. This monitoring is critical because the performance of a construction project is significantly ...
Keywords: Action Recognition, Work Sampling, Activity Analysis, KINECT, Skeleton, Human-Object Interaction
M. Safa, M. Nahangi, A. Shahi, C. T. Haas
Pages 669-676
Abstract: Addressing deficiencies and defects that occur during construction projects is costly and time consuming. The manual quality assurance programs currently used in the industry have certain limitations, including human error and lack of consistency. Hence, there is a need for integrated electronic models that employ new technologies and methods. This ...
Keywords: Quality Assurance, Construction Management, Laser Scanning, Photogrammetry, Piping Module
Akihiko Nishiyama, Masaharu Moteki, Kenichi Fujino, Takeshi Hashimoto
Pages 677-684
Abstract: Unmanned construction technology used for remote control operation of construction machines has some problems to solve compared with manned operation of construction machines, such as fatigue due to long-term operation or decreases in operational efficiency. To solve these problems, we recorded the viewpoints of operators in both manned and remote ...
Keywords: Remote control technology, IT construction system, Disaster, Construction machine, Hydraulic excavator,
spatial perception, Sense of depth
D. Y. Kim, J. Yoon, C.-W. Park
Pages 685-690
Abstract: This paper shows an approach that a gondola-typed robot recognizes walls on building facades. It is applicable for autonomous or teleoperated building façade painting robots. The robot may react based on the wall classification data. This approach is based on 2D LRF(two-dimensional Laser Range Finder). The robot acquires relative distances ...
Keywords: Robotics, Gondola, Façade, Maintenance, Wall, Classifier
K. Szczesny, M. König, L. Laußat, M. Helmus
Pages 691-698
Abstract: This paper considers the integration of uncertain real-time logistics data for reactive construction scheduling. In order to manage a construction project efficiently, an accurate schedule representing the current project progress is inevitable. The quality and up-to-dateness of such a schedule depends on the availability of real-time data. Typically, real-time logistics ...
Keywords: Real-time logistics data, reactive construction scheduling, uncertainty modeling, fuzzy set theory, discrete event simulation
E. Viljamaa, I. Peltomaa, T. Seppälä
Pages 699-707
Abstract: In this research, earlier developed information integration method and novel web technologies are applied to intensify infrastructure construction process control. The applied method uses semantic methods to integrate scattered information that is later on exploited by process management using state-of-the-art web technologies. The applied method and web technologies not only ...
Keywords: Infrastructure building, information integration, semantic methods, web technologies
Julian V. Simela, Joshua A. Marshall, Laeeque K. Daneshmend
Pages 708-717
Abstract: Conventional methods of underground surveying use theodolites/total stations and 3D laser scanners to obtain information about the underground environment. Current methods of geo-referencing these instruments to a mine reference system include triangulation, trilateration and resection. However, despite technological advancements, surveying procedures have remained slow, laborious and relatively unchanged during the ...
Keywords: Underground surveying, mobile robotics, Laser-based positioning
F. Vahdatikhaki, A. Hammad, S. Setayeshgar
Pages 718-730
Abstract: Simulation techniques have offered significant boosts toward a cost-and-time-optimized planning of construction projects by enabling project managers to effectively comprehend the behavior of projects. Using historic data from projects of like nature, simulation considers uncertainties involved in a project through accommodating the stochastic modeling parameters. However, the heavy reliance on ...
Keywords: Real-time simulation, Automated Machine Control/Guidance, 4D modeling
S. Setayeshgar, A. Hammad, F. Vahdatikhaki, C. Zhang
Pages 731-741
Abstract: The identification of potential accidents on construction sites has been a major concern in the construction industry and it needs a proactive safety plan to reduce the risk of accidents. There are no efficient methods for checking if safety measures are taken properly on construction sites. Consequently, workers on site ...
Keywords: Safety, Simulation, Real time, BIM, RTLS
M. Rafiee, H. Siddiqui, A. Hammad,
Pages 742-752
Abstract: Indoor physical security, as a perpetual and multi-layered phenomenon, is a timeintensive and labor-consuming task. Various technologies have been leveraged to develop automatic access control, intrusion detection, or video monitoring systems. Video surveillance has been significantly enhanced by the advent of Pan-Tilt-Zoom (PTZ) cameras and advanced video processing, which together ...
Keywords: Indoors Security, Data Fusion, BIM, UWB, PTZ Security Camera
Gary M. Bone, Scott G. Olsen, Graham E. Ashby
Pages 753-762
Abstract: The autonomous control of vehicles interacting forcibly with their environment, such as dozers and tractors, is an unsolved and challenging problem. Forces and motions are inherently coupled between the tool and the means of vehicle propulsion. Furthermore, they are often operated within uncertain and unstructured environments, such as those encountered ...
Keywords: Autonomous dozer, mobile robots, dozing, hybrid dynamic systems, model-based control, optimal control, mining
M. J. Lopatka, T. Muszynski
Pages 763-773
Abstract: This paper presents the results of 3 tons skid steer 6x6 wheel robot drive system field tests. The aim of the investigation was verification of assumed data for drivetrain diesain and forces identification in the drivetrain system during maneuvering and crossing obstacles. Robot has hydraulics drive system with motors in ...
Keywords: Skid-steer vehicle, UGV, Robot, Obstacle, Turning and roling resistance, 6x6 vehicle, Hydrostatic drive
E. Rezazadeh Azar, B.Y. McCabe
Pages 774-782
Abstract: Dump trucks are the main mean for hauling earth material within and outside of the construction and open-pit mining jobsites. The real-time monitoring of the material transportation trips is beneficial for proactive equipment management, volume estimation, and productivity measurement. The traditional manual observation is tedious, non-real-time, and expensive; therefore remote ...
Keywords: Computer vision, automated productivity measurement, hauling trip, dump truck, earth material.
Bahaa Hussein, Osama Moselhi
Pages 783-792
Abstract: Considerable number of methods and procedures has been introduced for trending and progress reporting of engineering, procurement and construction projects. This paper introduces a novel method, designed to augment the set of indices for measuring schedule performance. The concept behind the developed method is to provide early warning by dynamically ...
Keywords: Schedule Performance, Critical Path Method, Schedule Cumulative Impact, Progress Reporting
I.A. Ocheoha, O. Moselhi
Pages 793-801
Abstract: The purpose of this research is to evaluate the impact of Building Information Modeling (BIM) on Just-In-Time (JIT) material delivery, with a focus on how the use of BIM can help improve efficient implementation of JIT and reduce the cost of material management. Previous research and a number of case ...
Keywords: Building Information Modeling (BIM), Just-In-Time (JIT), Material Management, Vendor selection
M.J. Lopatka, T. Muszynski
Pages 802-811
Abstract: This paper presents the results of field test and theoretical analysis driving resistance articulated 4x4 tracked robot test-bed. Tests were made on four different grounds. Designated elastomeric tracks resistance coefficients are much higher than for steel tracks. This information was important for the proper estimation of energy consumption in the ...
Keywords: (UGV) Unmanned Ground Vehicles, tracked robot, articulated steering, driving resistance
G. Eaton, L. Song, N. Eldin
Pages 812-820
Abstract: Safety management is an important mortal and business function in construction. Contractors have traditionally tracked and reported lagging indicators, e.g. fatalities and lost-time accident rates, to measure their safety performance and stay in compliance with relevant regulations. Over the last several decades, contractors became more proactive in their approach to ...
Keywords: Safety climate, job control, management commitment, survey, industrial construction
Ali Montaser, Osama Moselhi
Pages 821-829
Abstract: Hauling trucks are important part of equipment fleets for large earthmoving operations such as those encountered in dams and highway construction projects. This paper presents an automated methodology for tracking and estimating productivity of hauling trucks fleet operations in near-real-time. Recent advancement in automated site data acquisition technologies made their ...
Keywords: Earthmoving Operations, Hauling Trucks, Tracking and Progress Reporting, RFID, Control Sensor
S. Mao, M. Lu, X. Shen, U. Hermann
Pages 830-839
Abstract: Total station has been predominantly applied in stationary survey scenarios in construction. With the moving target tracking and point survey automation functions, a robotic total station (RTS) lends itself well to more dynamic applications. Nevertheless, a RTS unit is still unable to track multiple targets simultaneously or to survey a ...
Keywords: Robotic Total Station, Dynamic Surveying, Automation, Tracking Technology, Rigging
Magdy Ibrahim, Chantale Germain, Michel Guevremont, Martin Forcier, Osama Moselhi
Pages 840-848
Abstract: Detailed as-built project schedules are necessary to close out construction projects, benchmarking, forecasting, dispute resolution, and improving cost estimates of future projects. Manual procedures for developments of as-built documentation is time consuming, involves numerous interfaces and human interventions. This paper presents computational framework that encompasses automated site data acquisition and ...
Keywords: Automated data collection, Mobile computing, As-built schedule
Te Gao, Burcu Akinci, Semiha Ergan1, James H. Garrett Jr.
Pages 849-856
Abstract: It is a general expectancy that in most of the construction and renovation project, the contractor is going to hand over the as-built documents to the owner or the facility management team at the completion of the project. The main challenge for the handover process is to ensure the completeness ...
Keywords: As-built BIMs, As-designed BIMs, Mapping, Discrepancy
X. Wu, M. Lu, S. Mao, X. Shen
Pages 857-865
Abstract: Tunnel Boring Machines (TBMs) are widely used for tunneling in urban areas because of their high advance rate, precise as-built profile and minimal impact to buildings and traffic on the ground. For a tunnel built by a TBM, there are strict requirements on alignment control and safety. To meet these ...
Keywords: As-built modeling, Visualization, Tunnelling, Construction
S. N. Yu, J.K. Lee, S.H. Kim, B.S. Park, K.H. Kim, I.J. Cho
Pages 866-874
Abstract: Tele-operation manipulators applied in this paper are systems for the remote handling and management of pyroprocessing related facilities in an Argon cell of the KAERI (Korea Atomic Energy Research Institute). Generally, these kinds of systems are composed of a master-slave system and its peripherals installed along the wall of the ...
Keywords: Tele-operation System, Pyroprocessing, Remote Handling System, Master-Slave System
A. Boeing
Pages 875-884
Abstract: Rock-breaker automation and remote operation improves the safety and efficiency of mining operations. This article presents an overview of the Rocklogic rock-breaker automation system architecture that provides collision avoidance, automated parking, and remote operation functionality. The system consists of a distributed computer control system that interfaces with sensors attached to ...
Keywords: Rock-breaker, Mining, Robot, Tele-operation, Collision Avoidance, Automation, Remote Operation, Manipulator, Boom
H. Son, C. Kim, C. Kim
Pages 885-893
Abstract: The three-dimensional (3D) reconstruction of as-built industrial plant models plays an important role in revamping planning, maintenance planning, and preparation for dismantling during the lifecycle of industrial plants. Recently, the 3D reconstruction of existing industrial plants was conducted using laserscan data to make surveying processes more efficient. However, the current ...
Keywords: As-built 3D model, Laser-scan data, Ping and instrumentation diagram, Plant database, Plant information model
R. M. T. Raja Ismail, Q. P. Ha
Pages 894-904
Abstract: Shipping and stevedoring industry is going to witness a massive increase in the amount of containers to be handled while land constraints become more critical. Offshore transfer operations hence offer a preferable solution to deal with the surge in cargos rather than to expand the port outwards. Recently, there has ...
Keywords: Offshore boom crane automation, Second-order sliding mode, Lyapunov stability
H. H. Wang
Pages 905-913
Abstract: Construction safety documents regulate significant safety actions and requirements by which construction workers or employees should abide in order to secure them from occupational hazard events. Therefore, facilitating faster identification of applicable safety requirements from the documents has become an important topic in the construction safety domain. To address the ...
Keywords: Construction safety, Construction safety document, Ontology, Formal Concept Analysis
A. Carbonari, B. Naticchia, M. Vaccarini, G. Novembri
Pages 914-921
Abstract: In order to gain competitiveness and compete at a global level, construction companies should improve their efficiency. The problem is even more relevant in the construction field, whose work processes find it hard to evolve towards new automated methods and techniques in the management field. For that reason, this paper ...
Keywords: Automation and Robotics, remote sensing, construction sites, environmental monitoring
M. Vaccarini, A. Carbonari, A. Giretti
Pages 922-929
Abstract: In this paper a possible methodology to supplement a predictive control approach is reported. The benefits deriving from the application of a predictive control on complex buildings lay on its capability of adapting in advance to the conditioning needs of indoor environments. In fact, the mere reactive control is usually ...
Keywords: Energy efficiency, predictive control, building systems, metro stations
A. L. Karyakin, P. A. Osipov
Pages 930-937
Abstract: The report focuses on the process measurements of the mass of rock in the bucket power shovels and dragline excavators. The mathematical models are suggested of AC and DC electric drives of excavators. These models are a basis for calculation methods of the electric drive electromagnetic torque. The design schemes ...
Keywords: Power shovels, Dragline, Electric drive, Productivity, Calculation of electromagnetic torque, Identification of technological operations, Measurement the mass of rock
Katsutoshi Saibara, Shigeomi Nishigaki, Fujio Matsuda
Pages 938-945
Abstract: Network communication note is a cloud system for an earthwork project. It enables backhoe operators and dump truck drivers to monitor their own works in progress currently and performed up to the present, and to have opportunity to reflect on their own bearings in the earthwork operations, and then could ...
Keywords: Earthwork process, Points on construction, Operator assist, Driver assist, Actual operation rate, Haul road monitoring, Early alarm, Proximity warning
S. Shokri, C.T. Haas, R C.G. Haas, K. Maloney, S. MacGillivray
Pages 945-954
Abstract: The increasing size and complexity of mega construction projects result in having several geographically distributed stakeholders, collaborating with each other to successfully deliver the project. Electronic Product and Process Management Systems (EPPMS) are recently emerging to facilitate the collaboration between stakeholders, reduce the surprises and issues, and improve the project ...
Keywords: Interface Management, Critical Stakeholders, Centrality Concept
S. Beitler, M. Holm, T. Arndt, A. Mozar, M. Junker, C. Bohn
Pages 955-962
Abstract: The availability of renewable energy does not meet the demands of consumption. Hence, fossil fuels will continue to be an important energy source, and coal promises to cover the requirements for the coming decades. Because of its high energy content, deep lying bituminous coal and anthracite are important for energy ...
Keywords: Mining, longwall, coal, thin seam, plow, horizon control, SDHC, automation
Rita Awwad, Michael Ammoury
Pages 963-971
Abstract: Building Information Modeling (BIM) has been gaining a significant edge in the construction industry over the last decade. BIM allows gathering all building information in one shared database that can help all construction entities better understand, integrate and visualize all work progress from inception to operation of the building. The ...
Keywords: Building documentation, BIM Awareness, Building information models, BIM challenges, Lebanese construction market
A. J. Antony Chettupuzha, Carl T. Haas, Joel Gray
Pages 972-978
Abstract: Electronic Product and Process Management [EPPM] systems provide the capability to establish and map information flow between different parties in a construction project as well as model project processes. Much of the information relating to processes and their structure, the actors that operate them, and the data associated with each ...
Keywords: Construction workflows, knowledge discovery, suitability measures
A. J. Antony Chettupuzha, Dr Carl T. Haas, Joel Gray, Ray Simonson
Pages 979-986
Abstract: During a construction project, it is important to ensure that accurate and pertinent knowledge is delivered on time to appropriate personnel. The criticality of documents exchanged or referred to by various parties, evolves over the course of the project lifecycle. Determining the criticality of documents at different stages of the ...
Keywords: Construction documents, knowledge discovery, information systems, critical documents
Nan Li, Jun-young Kwak, Burcin Becerik-Gerber, Milind Tambe
Pages 987-994
Abstract: Energy consumption in commercial buildings has been increasing rapidly in the past decade. The knowledge of future energy consumption can bring significant value to commercial building energy management. For example, prediction of energy consumption decomposition helps analyze the energy consumption patterns and efficiencies as well as waste, and identify the ...
Keywords: Heating, ventilation, and air conditioning (HVAC), Energy consumption prediction, Commercial building, Multiagent systems (MAS)
V. Polotski, F.J. Ballotta, J. James
Pages 995-1003
Abstract: Initiated and financed by the Canadian Space Agency, Micro-Rover Platform with Tooling Arm (MRPTA) project has targeted the development of a robotic system with remote control and autonomous navigation capabilities for testing a large variety of analogous planetary missions. Although developed for planetary exploration, the navigation system is highly suitable ...
Keywords: Autonomous navigation, planning, control, mapping, planetary exploration, data fusion
H. Ishimoto, T. Tsubouchi
Pages 1004-1012
Abstract: It always has been a serious issue to improve safety in mine sites, demolition work sites, and civil engineering work sites. Especially, collision accidents caused by construction equipment damage not only the productivity of operations but also the health and life of workers in those work sites.
To solve this problem, ...
Keywords: Construction Equipment, Excavator, Safety, Proximity Detection, Stereo Vision, Camera
S. Isaac, F. Sadeghpour, R. Navon
Pages 1013-1020
Abstract: The networks of interdependencies between elements in building projects, referred to as the project topology, are often complex and difficult for project teams to comprehend. It is hypothesized that a graphbased model of the project topology can be based on existing data in Building Information Models (BIM), facilitating the application ...
Keywords: Design Management, BIM, Graph Theory
Soumitry J. Ray, Jochen Teizer, Roger Bostelman, Mike Agronin, Dominic Albanese
Pages 1021-1028
Abstract: Poor visibility of powered industrial vehicles, such as forklifts, used in industry is often the cause of accidents that include pedestrians. Current standards allow up to 20 % non-visible regions for forklifts where measurement of these regions is performed by using lamps. A collaboration of research organizations, including National Institute ...
Keywords: Blind spots, Construction Workers, Construction Equipment, Vehicle Operator Visibility
Eric D. Marks, Jeremy E. Wetherford, Jochen Teizer, Nobuyoshi Yabuki
Pages 1029-1036
Abstract: Fatalities resulting from ground workers colliding with objects and construction equipment accounted for approximately 18% of the total construction fatalities experienced in 2010. Current injury and fatality measuring methods have proven to be inadequate due to their use of passive measures of safety rather than a more active approach, such ...
Keywords: Construction workers-on-foot; equipment operator visibility; hazardous proximity situations; heavy construction equipment; leading safety indicators; proximity detection, warning, alert technology; safety
Tao Cheng, Nipesh Pradhananga, Jochen Teizer
Pages 1037-1045
Abstract: Previous research and applications in construction resource optimization have focused on tracking the location of material and equipment. There is a lack of studies on automated monitoring of the interaction between workers and equipment for safety purposes. This paper presents a new approach for measuring the safety performance of construction ...
Keywords: Safety, Proximity hazards, Equipment, Real-time location tracking, UWB, Spatial-temporal analysis
S. Aram, C. Eastman
Pages 1046-1055
Abstract: Product Lifecycle Management (PLM) solutions have been serving as the basis for collaborative product definition, manufacturing, and service management in many industries. They capture and provide access to product and process information and preserve integrity of information throughout the lifecycle of a product. Efficient growth in the role of Building ...
Keywords: PLM, BIM, PDM, AEC industry
S. Aram, C. Eastman, M. Venugopal, R. Sacks, M. Belsky
Pages 1056-1064
Abstract: Concrete reinforcing requires coordination among many roles: structural engineer, estimator, detailer, fabricator, installer and others. The methods used to define and represent concrete reinforcement elements and assemblies in building information models is crucial in determining the efficiency of sharing data among BIM platforms and the effectiveness of using the carried ...
Keywords: Reinforcement, concrete, BIM, IFC, interoperability, geometric modeling
Youngjib Ham, Mani Golparvar-Fard
Pages 1065-1073
Abstract: Understanding energy performance of existing buildings is vital to increasing their efficiency and reducing the overall energy consumptions. This entails facility managers to systematically monitor building energy performance and reliably identify and analyze potential problems. Currently, infrared thermography is widely used as a primary diagnostic tool for the detection of ...
Keywords: Building Retrofit, Thermography, Image-based 3D Reconstruction, Computational Fluid Dynamics (CFD), R-value
J. Seo, S. Lee, T. J. Armstrong, S. Han
Pages 1074-1084
Abstract: We propose a dynamic biomechanical simulation method that uses motion capture to evaluate the risk of Work-related Musculoskeletal Disorders (WMSDs). Statistics show that WMSDs accounted for 33% of all non-fatal occupational injuries and illness in construction in 2009, and were a leading cause of temporary and permanent disability. Present methods ...
Keywords: Work-related musculoskeletal disorders, Biomechanical model, Motion capture
N. Razavinia, F. Mucciardi, F. Hassani, M. Al-Khawaja
Pages 1085-1092
Abstract: Most mining and metallurgical industries produce relatively large quantities of low grade waste heat which they vent, for the most part, to the environment. To date, little is being done to recover some of this heat and transform it from low grade to a high grade energy form such as ...
Keywords: Waste heat, low grade energy, geothermal energy, heat pipe, external combustion engine, energy recovery, electricity
Mahmoud Ahmed, Carl T. Haas, Ralph Haas
Pages 1093-1100
Abstract: Three-dimensional models are in increasing demand for design, maintenance, operations and construction project management. Point-clouds are the main output of automatic data collection using laser-scanners and photogrammetric technologies. Pipe-works may comprise 50% of the value of important construction projects such as industrial and research facilities. We have developed a practical ...
Keywords: No keywords
Chan-ho Park, Jae-sang Ahn, Dong-min Lee, Yu-na Cha, Sang-yoon Chin
Pages 1101-1109
Abstract: As the building has recently become bigger, higher, and freeform, a technology called BIM (Building Information Modeling), which is a key technology that integrates construction and IT(Information Technology), has been rapidly introduced and expanded. Because BIM technology offers various benefits, countries that introduced BIM early has been actively promoted. However, ...
Keywords: BIM, BSC, KPI, Principal Component Analysis, Varimax, Cronbachs a, Correlation analysis, LISREL
Jae-sang Ahn, Chan-ho Park, Dong-min Lee, Yu-na Cha, Sang-yoon Chin
Pages 1110-1118
Abstract: As the amount of construction information used in the growing construction field increases, the importance of efficient construction field management has been growing. Therefore, construction industry have been tried to introduce and conjugate various software and IT technology such as PMIS, Web Camera, RFID, GPS, PDA. However, existing IT technology ...
Keywords: Smartphone, Application, Cloud computing, SNS
Xue Yang, Semiha Ergan
Pages 1119-1128
Abstract: Even though many approaches have been proposed for automated fault detection and diagnosis of Heating Ventilation and Air Conditioning (HVAC) systems, and advanced maintenance programs, such as preventive and predictive maintenance have been applied for the systems, issuing work orders for corrective maintenance is still a reality. Currently corrective maintenance ...
Keywords: Indoor air related problems, Corrective maintenance, Information requirements, Challenges
Ashley Tews
Pages 1129-1138
Abstract: In 2005, we automated a forklift-based Hot Metal Carrier to be capable of typical metal transfer operations around a smelter. The project was highly successful and the vehicle has demonstrated hundreds of hours of live autonomous operations to thousands of people from industry and the public. As a result of ...
Keywords: Site automation, vehicle operations, efficiency, site safety
C. Kim, H. Son, C. Kim
Pages 1139-1147
Abstract: The integration of three-dimensional (3D) data with infrared thermography has received much attention for its potential use as input data for building energy simulations. Therefore, researchers have proposed methods to integrate 3D data with infrared thermography obtained by different sensors. These studies show the potential of the integration of 3D ...
Keywords: As-built model, Building information model, Building energy simulation, Infrared thermography, 3D data
N. Hwang, H. Son, C. Kim, C. Kim
Pages 1148-1156
Abstract: There has been increasing interest in the use of robotic machines, and several prototype robotic machines have been developed to automate the grit-blasting process for the purpose of steel bridge maintenance. To utilize such a robotic grit-blast machine effectively, the first consideration is automating the determination of the rust surface ...
Keywords: Robotic grit-blast machine, Rust detection, Rust surface area determination, Steel bridge inspection and maintenance, Surface painting
J. Lee, Y. Liu, J. Kang, S. Ahn
Pages 1157-1163
Abstract: A monolithic caisson is one of the major structural components commonly used in the construction of docks, breakwaters, and container terminal quay walls. Since the structure of monolithic caissons is typical and somewhat simple, its design process is also typical and repetitive, but still time consuming. To reduce the total ...
Keywords: BIM, Parametric modeling, Revit Family, automatic generation
J. Kang, S. Ahn
Pages 1164-1170
Abstract: Large-scale land reclamation has been undertaken in Singapore since the 1960s. In the early years, the fill materials excavated from the hills. In recent years, sea sand is the main source of the fill materials. The contractors used to import the sea sand from the neighbouring countries such as Indonesia. ...
Keywords: Arena Simulation, Sand Transportation
R. Heikkilä, M. Malaska, P. Törmänen, C. Keyack
Pages 1171-1176
Abstract: In this paper the utilisation of building information models (BIM) and construction automation on building sites is discussed. A lot of research has been carried out to develop new applications for using BIM to assist construction site planning, different operations and logistics. The methods of production control and management on ...
Keywords: BIM, construction automation, robotics, tower crane, crane control
R. Heikkilä, J. Heikkilä, M. Mikkonen
Pages 1177-1183
Abstract: As a part of a large research and development program in Finland, a system calibration for an UAV measurement method having practical experiments in a Jorvas Railway Yard design and construction project. The Railway yard construction are was measured using an UAV measurement device by Smartplanes (Smartone) and using some ...
Keywords: Unmanned aerial surveying, digital terrain model
R. Heikkilä, K. Laatunen
Pages 1184-1189
Abstract: A large research and development program called RYM PRE (Process Re-Engineering) has been active in Finland since 2010. As a part of the program, a work packet Infra FINBIM is focused on the development of new national process model, specifications and requirements for the whole Finnish Infra Industry. In the ...
Keywords: Infra, BIM, Automation, Total Process
R. Heikkilä, P. Tiitinen
Pages 1190-1196
Abstract: Today road construction sites utilize more and more information modeling in design phases as well as model based 3-D machine control systems in site operations. For main contractor, the management and control of all the site operations is a demanding task including also many challenges created by continuously developing new ...
Keywords: Road Construction, Site Operations, Dynamic Management
J. Zou, M. Lu, R. Karumudi, A. Tan, X. Shen
Pages 1197-1207
Abstract: Open-cut method is most widely used for shallow utility lines installation. In urban areas, unexpected utility lines buried underground potentially turn open-cut construction into a highly risky operation, increasing the construction cost while presenting additional safety hazards. Examples include: breaking existing water main leads to flooding the downtown area; hitting ...
Keywords: Construction management, Radar, Utility lines
Kosei Ishida, Naruo Kano, Takeshi Igarashi, Hirohiko Fujii, Yuji Oosawa, Shintaro Sakamoto, Hiroyuki Tomita
Pages 1208-1215
Abstract: To achieve renovation work without noise, the authors developed techniques of manufacturing pre-cut interior finishing components for renovation work. In this paper, to achieve the system of pre-cut interior finishing components, the authors describe a measuring method of reinforced-concrete structure by 3D laser scanner and then describe a method of ...
Keywords: 3D laser scanner, Point clouds, Pre-cut, 3D CAD, Reinforced-Concrete Building
R. Heikkilä, M. Marttinen
Pages 1216-1222
Abstract: The utilization of Building Information Modeling (BIM) and model based 3-D control of work machines have increased a lot in new road construction in Finland as well as in other Nordic Countries. Up today, much less attention has been paid into the development of maintenance and rehabilitation processes. As a ...
Keywords: Automation, Roads, Information modeling, Mobile Laser Scanning, Maintenance
V. Gangrade, F. Calizaya, M.G. Nelson
Pages 1223-1232
Abstract: Recirculation is the major concern associated with the utilization of booster fans. In controlled recirculation, a portion of the return air is purposely mixed with the intake air and the mixture is directed towards a working district, while the air quantity and gas concentrations in the air are closely monitored ...
Keywords: Ventilation, Booster Fan, Controlled Recirculation, CO2 Injection
R. Heikkilä, J. Liukas, A. Karjalainen
Pages 1233-1238
Abstract: Fluent information exchange between different work phases, software and systems used in infra construction is a key for successful execution of infra construction projects. Open and publicly available information formats with the determined data models aim to facilitate the interoperability between different software and systems developed by competitive vendors. While ...
Keywords: BIM, Open Information Transfer, Open Format
M. A. Nadar, C. A. Awakian, H. K. Khoury
Pages 1239-1246
Abstract: Harsh and dynamic construction sites are generally equipped with cranes in order to rapidly and conveniently move heavy loads from one location to the other. If not properly inspected and managed, this operation can be very hazardous and lead to accidents. As such, a reliable and self-contained monitoring system that ...
Keywords: Tower crane accidents, Construction safety, Tower crane monitoring, WSN
Cheng-Ting Chiang, Chia-Ying Lin, Chien-Cheng Chou
Pages 1247-1254
Abstract: Information integration and exchange for the entire building life cycle is one of the most important issues in the AEC industry. Although the Building Information Model (BIM) technology is widely utilized to address them, BIM is mainly concerned within the design and construction (D&C) phases. In the operation and maintenance ...
Keywords: Building information model, Model-driven architecture, Disaster mitigation
K. Iturralde, T. Bock
Pages 1255-1262
Abstract: Dense transport infrastructure areas lack green facilities, they produce annoying noise and they are big energy consumers. As far as there is no free land or space, adding a vegetal covering to existing infrastructures has become a choice in order to get a more pleasant and comfortable environment. Noise barriers ...
Keywords: Urban, infrastructures, robotic assembly, green covering, energy source
R. S. Adhikari, Z. Zhu, O. Moselhi, A. Bagchi
Pages 1263-1270
Abstract: It is necessary to assess the physical and functional conditions of highway bridges at regular intervals to ensure they still meet their service requirements. Currently, this condition assessment is mainly performed through visual inspection, which has been identified with several limitations (e.g. the timeconsuming assessment process and heavy reliance on ...
Keywords: Hybrid Sensing, Condition Assessment, Point Clouds, Digital Images, and Bridge Inspection
Seungyeol Lee, Sunghoon Eom, Jeonil Moon
Pages 1271-1280
Abstract: Currently, a new construction method using a robotic system is widely spreading in construction sites. This study is related to the design of glazing robots teach pendant which can improve convenience of handling and hence improve the productivity through the efficient interaction between an operator and a robot while doing ...
Keywords: Teach pendant, Design guideline, Curtain wall, Glazing robot
Seongki Lee, Sung-Ah Kim, Eun-Ho Oh, Eun-Young Shin, Tai-Kyung Kang, Yoo-Sub Lee
Pages 1281-1287
Abstract: The purpose of this paper is to propose the real-time facility management system framework based on Building Information Model (BIM) and Web of Things. Latest IT such as BIM is rapidly spreading to architecture, civil engineering, engineering and maintenance with the aim of simplifying complex system in buildings and facilities, ...
Keywords: Building Information Model, Web of Things, CAFM, BEMS
Amir Zavichi, Kaveh Madani, Petros Xanthopoulos, Amr A. Oloufa
Pages 1288-1295
Abstract: Today, with the necessity of timely, on-budget and high quality completion of projects, proper use of construction equipment is essential to ensure project success. Construction equipment places a large monetary burden on the project and if not utilized efficiently, it can result in economic losses. Cranes are one of the ...
Keywords: Optimization, Scheduling, Tower crane, Automation, Decision support system
M. Abouhamad, T. Zayed
Pages 1296-1304
Abstract: According to the Canadian Urban Transit Association (CUTA), 140 Billion CAD is required to maintain, rehabilitate, and replace subway infrastructure between 2010 and 2014. The current practice adopted by transit authorities for prioritizing subway stations for rehabilitation is based on the station structural needs. While this classification is reflective of ...
Keywords: Subway stations, criticality Index, Fuzzy Analytic Network Process, Fuzzy Preference Programming
Fei Dai, Xiaopeng Ning
Pages 1305-1316
Abstract: Musculoskeletal disorders (MSDs) are a group of painful disorders that affect muscles, tendons, nerves, joints, cartilage, and ligaments. They are a serious problem among the workforce in the United States. In the construction industry, high physically demanding tasks expose construction workers to a number of well recognized MSDs risk factors ...
Keywords: Ergonomics, musculoskeletal disorders, construction workers, safety, image-based methods
Chen Feng, Nicholas Fredricks, Vineet R. Kamat
Pages 1317-1325
Abstract: Compared to widespread successful deployment of robotic manipulators for repetitive and hazardous tasks in related industries such as manufacturing, the construction industry has achieved relatively limited benefits from robotics and soft automation. Unlike manufacturing, where robotic solutions benefit from the structured layout of the environment (e.g., factory assembly line), construction ...
Keywords: Semi-autonomous navigation, Pose estimation, Mobile robot, Construction basic task
Moatassem Abdallah, Khaled El-Rayes, Liang Liu
Pages 1326-1333
Abstract: Buildings in the United States account for 72% of electricity consumption, 40% of energy consumption, 13% of water consumption, 39% of carbon footprint, and 30% of waste output. In order to minimize these negative environmental impacts, many public and private owners are requesting that their buildings be more sustainable and ...
Keywords: Optimizing sustainability decisions, LEED-EB certification, maximizing building sustainability
Min-Sung Kang, Myeongsu Gil, Seunghoon Lee, Dongsu Shin, Chang-Soo Han, Jung Soo Han, Bo-Hyun Yu
Pages 1334-1341
Abstract: Excavation and earthmoving equipment mostly operate in accident-prone areas. These areas normally have rollover, confinement, and fall or may be considered harmful work areas due to demolitions and sewage removals. It is inevitable that excavation and earthmoving systems should be developed to secure the safety of operators through unmanned and ...
Keywords: Installation type, Tele-operated Excavation System, Sensor-based estimation, Human-Robot Cooperation
Seunghoon Lee, Dong-Hyung Kim, Sungpil Kang, Chang-Soo Han, Min-Sung Kang, Myeongsu Gil
Pages 1342-1349
Abstract: The increase in the number of higher and larger buildings is expected to require the buildings' outer wall maintenance process, which includes cleaning, painting and monitoring, still depends on manpower. In this study, we proposed the robotic building maintenance system and aimed to reduce the jerk effect through the motion ...
Keywords: Building maintenance robot, Sensor based system, Motion control, Anti-jerk control
Mohamad Kharseh, Firre Hassani, Mohammed Alkhawaja
Pages 1350-1358
Abstract: There is general acceptance that climate change, which is the most important challenge facing humanity, is anthropogenic and attributed to fossil fuel consumption. Therefore, improving the performance of our existing energy systems and deploy more renewable energy resources is an urgent issue to be addressed. Geothermal refers to existing of ...
Keywords: Geothermal energy, electricity generation, organic Rankine cycle, performance, economic viability
Kwang-Hyun Jeon, Min-Beom Park, Min-Kyung Kang, Jung-Hoon Kim
Pages 1359-1365
Abstract: Recently, 3D printing technology in the manufacturing field is in the spotlight. In the construction industry, similar rapid prototyping technology that does not use conventional form can be applied to meet the demand on free formed structure that can provide aesthetic value and functionality. Conventional formwork can increase construction cost ...
Keywords: Automated Building Construction, Freeform Construction, 3D Printing, Rapid Prototype, Fiber-Reinforced-Mortar
Sebastian Siebert, Jochen Teizer
Pages 1366-1375
Abstract: Unmanned Aerial Vehicles (UAV) as a data acquisition platform and as a measurement instrument have become attractive for many surveying applications in civil engineering. However, their performance is not well understood for these particular applications. The specific scope of the presented work is the performance evaluation of a UAV system ...
Keywords: Aerial surveying, camera, geomatics, laser scanning, mapping, photogrammetry, range point cloud, total station, safety, surveying, unmanned aerial vehicle (UAV), vision sensing
B. Leonard, H. Taghaddos
Pages 1376-1385
Abstract: As of November 2012, the Alberta government listed 53 oil and gas, oil sands, and mining construction projects either proposed or currently under construction. These industrial plant construction projects have an estimated value greater than 105 million dollars. A common construction method employed for industrial plant projects is fast-track construction, ...
Keywords: Plant Information Modeling, Industrial Plant Construction, Schedule Visualization, Animation, Modular Construction
Z. Zhu, L. Tirca
Pages 1386-1393
Abstract: Deformation is a critical indicator required to evaluate the structural safety, stability, and integrity. For example, the deformed shape of a building structure is a key parameter that needs to be measured and tracked during laboratory testing or post-disaster inspections. However, existing techniques used for the deformation measurement and tracking ...
Keywords: Deformation measurement, CBF structures, Image processing, Automation
S. Abu-Samra, A. H. El Hakea, C. Khalil, O. Hosny, A. Elhakeem
Pages 1394-1403
Abstract: By virtue of its complex nature, the construction industry comprises a wide spectrum of interrelated variables and factors. This multifaceted character of the construction industry puts the use of engineering modeling tools and techniques on top of project management necessities. This research introduces a macro-level earthmoving management system using Genetic ...
Keywords: Earthmoving equipment, Multi-project optimization, Genetic Algorithms, Macro-level management
Nehad Elsafty, Zhenhua Zhu, Hani Badran
Pages 1404-1411
Abstract: It is always necessary to expand existing buildings, so that they could meet the growing societal needs. Compared with demolishing them and then constructing new ones, the expansion of existing buildings could not only reduce project cost, but also save the use of energy and raw materials in projects. Therefore, ...
Keywords: Buildings expansion, Lessons learned, Case study, Al-Agoza hospital
L.T. Raevskaia
Pages 1412-1417
Abstract: We discuss the stability problem of a piston of the reversible axial-piston pneumatic motor called DAR-14M. We performed the full analysis of stress and deformation characteristics of the piston near a resonant frequency with the help of FEM ANSYS. We estimated the own frequency of the piston analytically for the ...
Keywords: Frequency of a forced oscillation, axial - piston pneumatic motor, near resonance behaviour
Jeonghwan Kim, Jongwon Seo
Pages 1418-1427
Abstract: Intelligent Excavation System (IES) has been considered to be one of the desirable solutions to improve the productivity, quality and safety of the current earthwork processes. IES is composed of various hardware and software modules including task planner (work command generator), local and global work environment sensors, GPS and other ...
Keywords: Automated excavator, Construction equipment, Data communication, Intelligent earthmoving
M. Soleimanifar, D. Beard, P. Sissons, M. Lu, M. Carnduff
Pages 1428-1436
Abstract: With more and more industrial construction projects implementing RFID and other sensor-based technologies on fabrication and project sites, new innovative processes are needed to help automatically read and re-position RFID tags while reducing the cost to deploy RFID infrastructure over large areas. RFID tags are being used on construction sites ...
Keywords: Construction, asset tracking, laydown yard, RFID, GPS, fabrication, pipe spools, modules, materials management, warehouse
Limao Zhang, Xianguo Wu, Lieyun Ding, Yueqing Chen, Miroslaw J. Skibniewski
Pages 1437-1446
Abstract: This paper presents a BIM-based Risk Identification Expert System (B-RIES) for metro construction, composed of three main built-in subsystems: BIM extraction, knowledge base management, and risk identification subsystems. The engineering parameter information related to risk factors is extracted from the BIM of a specific project where the IFC standard plays ...
Keywords: metro construction; safety risk identification; expert system; knowledge management; rule-based reasoning
Abhiram Shankar, Koshy Varghese
Pages 1447-1455
Abstract: Construction projects are becoming more demanding both in terms of time and complexity. This necessitates intricate planning and sequencing of activities at the macro and micro level and continuous flow of resources across the project in order to achieve planned targets. Work and Resource planning need to be done in ...
Keywords: Work-flow, Resource-flow, Location
M.P. Tibbs, O.K. Tyler, S. van Duin, E. Baafi
Pages 1456-1463
Abstract: An autonomous spray application system for a structural Thin Spray-on Liner (TSL) is targeting productivity and safety on underground coal continuous miners by potentially replacing steel mesh, and has broader applications as surface support and confinement in metalliferous mines and civil tunnelling. Polymer chemistry, coating formulation, geotechnical assessment and the ...
Keywords: TSL, Skin confinement, Strata support, Roadway development, Sensors, Robotic spray, Mobile robot
M. K. Kim, H. Sohn, D. Wu, J. C. P. Cheng, C. C. Chang
Pages 1464-1472
Abstract: This study presents a framework for quality inspection of precast concrete components using the 3D laser scanning technique. As precast concrete-based rapid bridge construction is getting standardized, quality assessment of the precast concrete becomes critical for preventing any failures during the construction process. Moreover, as Building Information Modeling (BIM) gains ...
Keywords: Precast concrete, Quality inspection, 3D laser scanning, Building information modeling
Ahmad Hemami
Pages 1473-1480
Abstract: A working code is developed to simulate the forces that are involved in the process of penetration of a bucket into bulk media during loading and excavation. The result of this work can be integrated with the simulation software that many manufacturers of heavy earthmoving machines introduce for training purposes. ...
Keywords: Software, Simulation, Resistance force, Bulk media excavation, mining
Limao Zhang, Xianguo Wu, Miroslaw J. Skibniewski, Yueqing Chen, Hanbin Luo
Pages 1481-1490
Abstract: This paper presents a novel model to assess the risk of adjacent buildings in tunnelling environments based on Extended Cloud Model (ECM). ECM is an organic integration of Extension Theory (ET) and Cloud Model (CM), where ET is appropriately employed to flexibly expand the variable range from [0, 1] to ...
Keywords: Cloud Model; risk assessment; adjacent buildings; complex environments; decision support
Anoop Sattineni, Kyle Mead
Pages 1491-1499
Abstract: Over the past decade the use of BIM in the AEC industry has grown several fold and with it the number of standards available for implementing BIM. The National BIM Standard by buildSmart Alliance, the Contractor Guide to BIM by the Associated General Contractors of America, the BIM Project Execution ...
Keywords: Coordination Guidelines, BIM Guidelines, BIM Standards, Virtual Design and Coordination
Dong-min Lee, Chan-ho Park, Jae-sang Ahn, You-na Cha, Sang-yoon Chin
Pages 1500-1507
Abstract: As the construction industry is becoming more large-scaled and complex, the BIM technology has been utilized throughout the industry. Since 2008, the construction industry in South Korea (Korea) has required carrying on BIM-based project continually. According to this trend, BIM S/W market, as well as BIM library market is also ...
Keywords: BIM, Library market, Revenue-sharing, Game theory, Application, Korea, Distribution System
E. Onal, C. Craddock, M. R. Endsley
Pages 1517-1525
Abstract: Mining operators are faced with complex information delivered by technology-centric rather than user-centric systems. The ability to achieve high situation awareness (SA) in the face of this data overload is a key challenge for effective decision making and information exploitation. Incidents that result in loss of revenue and even life, ...
Keywords: Mining, Shovel, Situation Awareness, User Interface, Design, Performance, Cost, Safety
Garston H. Blackwell
Pages 1526-1541
Abstract: For ageing open pit mining operations where the economic viability of another pushback is questionable, mine life can be extended by increasing the wall slope. If the steepening is started where ore intersects the pit wall, the capital outlay for waste stripping is minimal. Such a venture must be conducted ...
Keywords: cable shovel, remote control, sensors (rotation/crowd/hoist/propel), safety
Xiang Yu, Xueqing Zhang, Yashuai Li
Pages 1542-1549
Abstract: Hong Kong has a dense distribution of utility services laid under its road network. Utility undertakers frequently demand road openings to install new services and/or maintain existing ones. Road openings can cause troubles to the road network and negatively impact the public interest. Highways Department is responsible for managing road ...
Keywords: Road opening, Excavation permit, Permit processing, Utility management, Computer system
H. Q. Fan
Pages 1550-1559
Abstract: Construction equipment is an important type of resources of heavy construction contractors. Since equipment breakdowns can cause project delays and significant financial losses, the contractors are eager to know those factors causing equipment failures directly or indirectly, related to equipment design, maintenance, and operations. Although Bayesian network can be used ...
Keywords: Construction equipment maintenance; Bayesian network learning; Failure analysis; Decision support
S. Kivrak, G. Arslan, A. Akgun, V. Arslan
Pages 1560-1571
Abstract: The firms in construction industry could not sufficiently adapt the rapidly emerging information technologies in recent years into their corporate structures. Therefore, in an effort to further exploit the benefits of information technology (IT), integration of the experiences and backgrounds of construction industry and the advantages of IT, is one ...
Keywords: IT in construction sector, augmented reality, smart glasses, efficient construction management
S. C. Radopoulou, G.M Jog, I. Brilakis
Pages 1572-1580
Abstract: Pavement condition assessment is an indispensable constituent in maintaining roadway infrastructure. Current practices for pavement condition assessment are labor intensive which introduce subjectivity in pavement rating and are time consuming. Automated methods rely on full 3D reconstruction of the pavement surface which introduces high equipment and computation costs. This paper ...
Keywords: Pavement assessment, Patching detection, Image processing
