Perceptions of implied hazard for visual and auditory alerting signals

Chan, Alan H. S.; Ng, Annie W. Y.

doi:10.1016/j.ssci.2008.06.003

Cited by 49 publications

(38 citation statements)

References 23 publications

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“…The ability to respond to a threat following anticipation is important to safety. Other experiments such as the one by Chan, report better effectiveness with alternate modalities such as tactile and mixed modalities and, show that tactile warnings delivered at a 3s threshold are more effective than single-mode, visual or auditory alerts (Chan and Ng, 2009). In a future study, it would be useful to determine whether the utility of mixed-modal or multi-modal messages can further improve hazard anticipation ability.…”

Section: Discussionmentioning

confidence: 84%

Effectiveness of Visual Collision Warning Alerts on Young Drivers’ Latent Hazard Anticipation

Hajiseyedjavadi

Agrawal

Fisher

et al. 2017

Proceedings of the 9th International Driving Symposium on Human Factors in Driver Assessment, Training, and Vehicle Design: Dri

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Summary: Forward roadway collision warning systems can reduce rear-end collisions, among other unsafe behaviors. Previous studies have shown that young drivers fail to scan adequately for latent hazards. The current driving simulator study investigates the effect of visual collision warning messages on drivers' hazard anticipation ability, when presented either 2s, 3s or 4s in advance of a potential threat. This experiment examined the latent hazard anticipation behavior of forty-eight young drivers aged 18-25 across eight unique scenarios both, in the presence, and absence of visual collision warning alerts. The analysis of glance data captured using an eye tracker, show that visual warning messages significantly increased the proportion of latent hazards anticipated regardless of hazard type (pedestrian or vehicle). The 2s warning duration was found to statistically have the same effect on hazard anticipation compared to the 3s and 4s warning thresholds. The study has potential implications for the effective design of forward collision warning systems.

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Section: Discussionmentioning

confidence: 84%

Effectiveness of Visual Collision Warning Alerts on Young Drivers’ Latent Hazard Anticipation

Hajiseyedjavadi

Agrawal

Fisher

et al. 2017

Proceedings of the 9th International Driving Symposium on Human Factors in Driver Assessment, Training, and Vehicle Design: Dri

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“…Symbol comprehension is a measure to assess the readiness of an observer in understanding the message intended to be conveyed by the symbol. 50 Given the importance of conceptual compatibility in facilitating comprehension of symbols/ signs/icons, there has been a wide variety of research in the areas of industrial safety sign comprehension, 51,52 color associations, 53,54 hazard perceptions, 55 and so on.…”

Section: Conceptual Compatibilitymentioning

confidence: 99%

Interface Design and Display-Control Compatibility

Tsang

Chan

2015

Measurement and Control

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The increasing complexity of control room environments requires operators to interact with a wide variety of display signals and control devices. Therefore, the design of displays and controls plays an important part in determining the overall performance of operators. Compatible display-control design facilitates performance and reduces human errors that may occur as a result of a mismatch between the expectations of the operators and the relationships between the displays and controls. Three specific design compatibilities, namely, spatial compatibility, movement compatibility, and conceptual compatibility are introduced and discussed in detail in this paper. It is anticipated that this paper will provide pragmatic recommendations to assist interface designers to improve operational system effectiveness and safety by considering the many aspects of display-control compatibility necessary for effective humanmachine interface design.

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“…However, other colors, such as yellow and blue, are used for flashing lights that are associated with warning or caution in other industrial contexts. A study of perceived hazards indicated that red, as compared to yellow and blue, was perceived to indicate the highest hazard severity (Chan and Annie, 2009). This same study indicated that a flash rate of 4 flashes per second, or 4 Hz (Hz), was perceived to indicate the highest hazard severity compared to flash rates of 1, 2, and 3 Hz.…”

Section: Visual Warning System (Vws)mentioning

confidence: 99%

A visual warning system to reduce struck-by or pinning accidents involving mobile mining equipment

et al. 2012

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This paper describes an experiment to examine whether a visual warning system can improve detection of moving machine hazards that could result in struck-by or pinning accidents. Thirtysix participants, twelve each in one of three age groups, participated in the study. A visual warning system capable of providing four different modes of warning was installed on a continuous mining machine that is used to mine coal. The speed of detecting various machine movements was recorded with and without the visual warning system. The average speed of detection for forward and reverse machine movements was reduced by 75% when using the flashing mode of the visual warning system. This translated to 0.485 m of machine travel for the fast speed condition of 19.8 m/min, which is significant in the context of the confined spaces of a mine. There were no statistically significant differences among age groups in the ability to detect machine movements for the visual warning modes in this study. The visual warning system shows promise as a safety intervention for reducing struck-by or pinning accidents involving continuous mining machines. The methods and results of this study could be applied to other moving machinery used in mining or other industries where moving machinery poses struck-by or pinning hazards.

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Perceptions of implied hazard for visual and auditory alerting signals

Cited by 49 publications

References 23 publications

Effectiveness of Visual Collision Warning Alerts on Young Drivers’ Latent Hazard Anticipation

Effectiveness of Visual Collision Warning Alerts on Young Drivers’ Latent Hazard Anticipation

Interface Design and Display-Control Compatibility

A visual warning system to reduce struck-by or pinning accidents involving mobile mining equipment

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