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Efficiency improvement by navigated safety inspection involving visual clutter based on the random search model
Xinlu Sun1, Heap-Yih Chong2, Pin-Chao Liao1
1Department of Construction Management, Tsinghua University, China.
Summary
Navigated inspection improves hazard identification (HI) efficiency and accuracy. Visual clutter (VC) acts as a hazard classifier, enhancing inspection performance when combined with the random search model (RSM).
Area of Science:
- Human Factors Engineering
- Cognitive Psychology
- Industrial Safety
Background:
- Navigated inspection aims to enhance hazard identification (HI) accuracy but lacks efficiency metrics.
- Assessing navigated inspection strategies requires quantifying HI efficiency.
- Current manual inspection methods suffer from low accuracy and efficiency.
Purpose of the Study:
- To determine inspection efficiency in navigated safety inspection while controlling for HI accuracy.
- To evaluate the impact of visual clutter (VC) on navigated inspection efficiency.
- To validate the random search model (RSM) for analyzing inspection performance.
Main Methods:
- An experiment was designed using the random search model (RSM) cognitive method.
- Eye-tracking devices were employed to record search processes during inspection.
- Participants performed navigated inspections under varying visual clutter (VC) conditions.
Main Results:
- The random search model (RSM) proved to be an appropriate instrument for analysis.
- Visual clutter (VC) significantly improved navigated inspection efficiency by acting as a hazard classifier.
- A positive correlation was observed between VC, RSM, and improved inspection efficiency.
Conclusions:
- Navigated inspection, incorporating visual clutter (VC) and the random search model (RSM), offers an effective solution for improving manual inspection accuracy and efficiency.
- This approach provides valuable insights into inspectors' safety inspection capabilities.
- The study highlights the potential of navigated inspection for enhancing workplace safety.
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