Zhang, Y; Luo, H; Skitmore, M; Li, Q and Zhong, B (2018) Optimal camera placement for monitoring safety in metro station construction work. Journal of Construction Engineering and Management, 145(1): 04018118, ISSN 0733-9364
Abstract
Monitoring systems based on cameras are crucial for safety management of the high-risk activities common in the complex environment of metro station construction sites, and hence there is a need for a reliable camera network system. However, the number and locations of cameras are currently estimated according to the experience of managers/engineers, and the occlusion effect is rarely considered, resulting in weak coverage of 3D spaces in practice. To address this gap, a novel approach is presented to optimize camera placements for 100% site coverage while considering the occlusion dynamics caused by sidewalls and supports during excavation in metro station projects. A case study of a metro station project is presented to demonstrate and validate the approach, with results showing that the optimized plans for camera placement have larger coverage than the original plan and better performance in safety monitoring and controlling hazards. Optimized in this way, the plans for camera placement can help managers with effective planning and enhanced safety management of metro station construction sites.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | camera placement; metro station construction; modified genetic algorithm; occlusion; optimization; safety monitoring |
| Index terms: | construction work, monitoring, dynamics, case study, engineer, excavation, safety management, genetic algorithm, manager, placement, construction site |
| Subjects: | data collection methods, profession, practitioner, control systems, work location, operations management, construction operations, management, algorithms, occupational health and safety management, systems engineering |
| Topics: | Site Management, Digital Applications, Human Resources, Roles and Professions, Health and Safety, Research Practice, Project Management, Engineering Principles |
| Descriptive scope: | 3 PCE |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here