On Evaluation and Localization of Auditory Warning Devices for Adequate Audibility

• Autorzy: Asawarungsaengkul K. , Nanthavanij S.
• Języki publikacji: EN

Abstrakty

EN

This paper presents an analytic procedure to assist safety practitioners in evaluating the audibility of an existing auditory warning system in their workplaces. Two alarm location models are described: (a) a model with an unknown signal sound level, and (b) a model with a known signal sound level. A heuristic algorithm to determine a minimum number of alarm devices and their locations so that the warning signals can be clearly heard by workers is also proposed. The algorithm considers the ambient noise level, noise levels generated by individual machines, locations where workers are likely to be present, and noise levels at worker locations. From the numerical examples and the computation experiment, both the optimization and heuristic approaches yield solutions that satisfy the 15-dBA constraints. The heuristic approach is efficient in solving large alarm location problems due its capability to find near-optimal solutions within reasonable computation time.

Słowa kluczowe

EN

multi-alarm location problem; auditory warning device; audibility evaluation; industrial noise hazard

PL

droga ewakuacyjna; słyszalność; ewakuacja; urządzenia ostrzegające; hałas w przemyśle; lokalizacja urządzeń alarmowych

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2013
• Tom: Vol. 19, No. 3
• Strony: 355--369
• Opis fizyczny: Bibliogr. 31 poz., tab.

Twórcy

autor

Asawarungsaengkul K.

• Department of Industrial Engineering, King Mongkut's University of Technology North Bangkok, Bangkok, Thailand

autor

Nanthavanij S.

• Sirindhorn International Institute of Technology, Thammasat University, Pathum Thani, Thailand

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