Development of a schedule-workspace interference management system simultaneously considering the overlap level of parallel schedules and workspaces

HyounSeok, Moon; Kim, Hyeon-seung; Kim, Changhak; Kang, Leen-Seok

doi:10.1016/j.autcon.2013.06.001

Cited by 66 publications

(32 citation statements)

References 28 publications

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“…Predicting the 3D shapes within an assumed time interval to check clashes is commonly used in current studies [19,20]. Taking the east-north plane as an example, the identification of two circles that are to overlap is displayed in Figure 4.…”

Section: Unsafe Proximity Query Rulesmentioning

confidence: 99%

An Integrated INS-GPS-Raspberry Pi System Using the Time-Sphere Model for Real-Time Identification of Struck-by-Equipment Hazard

Wang¹,

Du²,

Razavi³

2016

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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Struck-by-equipment hazard, i.e, contact collision between worker-on-foot and construction equipment or between equipment and equipment, is a major cause of injuries and fatalities in construction. A variety of smart technologies and systems have been developed and utilized to alleviate the risks of this type of hazard. However, most of the existing technologies and systems perform with a high rate of false alarms which have critically impeded their implementations on real construction sites. Therefore, a system performing more accurately and in real-time needs to be developed to enhance construction safety. In this context, a real-time system integrating with the 4D Time-Sphere model is developed to timely identify and alarm struck-byequipment hazards with reduced false alarms. This system is comprised of Global Positioning System (GPS), Inertial Navigation System (INS), Raspberry Pi micro-processor and the developed Time-Sphere model. Corresponding actuation will be triggered if an unsafe situation is identified, i.e., struck-byequipment hazard(s) are or to be presented. A controlled field experiment was conducted to evaluate the feasibility of the integrated system and the effectiveness of the Time-Sphere model in reducing false alarms. The obtained results show that average 53% of the alarms generated by the prevalent method can be reduced by the TimeSphere model. All of the reduced alarms are false positives. The average false positive rate of the prevalent method is 29%. Moreover, it is demonstrated that the developed system is feasible and effective in identifying struck-by-equipment hazards in real time and potentially enhancing construction safety.

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Section: Unsafe Proximity Query Rulesmentioning

confidence: 99%

An Integrated INS-GPS-Raspberry Pi System Using the Time-Sphere Model for Real-Time Identification of Struck-by-Equipment Hazard

Wang¹,

Du²,

Razavi³

2016

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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“…The researchers developed and implemented technologies for vehicle tracking, and collision detection to sense their environment with the objective of increasing safety and improving productivity on construction sites (Oloufa, Ikeda & Oda, 2003). In 2014, based on BIM, an active simulation system has been developed after constructing a genetic algorithm (GA) process for an alternative schedule that minimizes the simultaneous interference level of the schedule-workspace (Moon et al, 2014).…”

Section: Bim-based Spatial-schedule Conflict Analysis and Structural mentioning

confidence: 99%

Research Trends in Information Technology Applications in Construction Safety Engineering and Management

Skibniewski

2014

Front. Eng

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Through analysis of articles published from 2000 to March 2014 in Automaton in Construction (AUT-CON), an international research journal published by Elsevier, this paper summarizes the topics of research and the institutions worldwide where research was conducted in construction safety engineering and management. Seventy-one articles published during this time focused on Information Technology (IT) applications in this field were selected for analysis. The underlying research topics and their related IT implementations are discussed, and research trends in allied specialties are identified.

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“…The first stream is to reduce the possibility of collisions between different pieces of equipment through applying more optimized planning and scheduling methods that consider the space requirements of various activities to avoid the dangerous proximities between different teams of equipment [6,7,8,9,10]. Such spaces are referred to in this paper as activity workspaces.…”

Section: Introductionmentioning

confidence: 99%

Visibility and Proximity Based Risk Map of Earthwork Site Using Real-Time Simulation

Vahdatikhaki¹,

Hammad²

2015

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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Approximately 75% of struck-by fatalities in the construction industry are reported to have been caused by heavy equipment. Researchers have addressed the need for the enhanced safety of earthwork equipment using different approaches. However, none of these approaches enables the equipment to accurately predict the operation of other pieces of equipment for a long-enough time window to find a collision-free path using path replanning. Accordingly, the present paper proposes a novel method to generate the risk map of an earthwork site considering the visibility and proximity based hazards. The proposed method integrates the pose and state data of different pieces of equipment with the prediction about the potential paths of equipment, which comes from near-realtime simulation and script-based path planning, to quantify the risk value associated with different portions of the site. The generated risk map can further be used by individual equipment to ensure that their future path is safe or to perform path replanning if required. The proposed method is implemented and tested in a case study. In the light of the results of a case study, it is found that the proposed method is providing a reliable basis for the safety analysis of earthwork sites

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Development of a schedule-workspace interference management system simultaneously considering the overlap level of parallel schedules and workspaces

Cited by 66 publications

References 28 publications

An Integrated INS-GPS-Raspberry Pi System Using the Time-Sphere Model for Real-Time Identification of Struck-by-Equipment Hazard

An Integrated INS-GPS-Raspberry Pi System Using the Time-Sphere Model for Real-Time Identification of Struck-by-Equipment Hazard

Research Trends in Information Technology Applications in Construction Safety Engineering and Management

Visibility and Proximity Based Risk Map of Earthwork Site Using Real-Time Simulation

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