Print Email Facebook Twitter Auditory guidance in a smoke-filled tunnel Title Auditory guidance in a smoke-filled tunnel Author Boer, L.C. Withinton, D.J. TNO Technische Menskunde Publication year 2004 Abstract As a test on auditory guidance, participants tried to .nd refuge and safety in a road tunnel in dense smoke with sound beacons over the escape exits. The beacons emitted a 'shhussing' noise with a 5-Hz pulse frequency. Three groups participated, 32 or 33 participants per group, the first with minimal instruction (sound not mentioned), the second with beacons instruction sound beacons help you to orient', and the third with full instruction sound beacons over the escape exits'. The percentage of participants .nding an escape exit was 16, 21, and 70%, respectively. While the potential of auditory guidance is amply demonstrated, there is the possibility that improvement in the recognition of the sound could improve escape exit usage further. It is recommended to include in the sound of the beacon the speech fragment 'exit here'. This will probably eliminate the need for instruction. If, in the future, the beacons are used broadly (in buildings, on ships and planes), the recognition issue should diminish.Vluchten op geluid, kan dat als rook het zicht beneemt? Proeven in een tunnel laten zien dat geluidsbakens ('lokdoosjes') effectief zijn als mensen het systeem begrijpen. Subject Acoustics and Audiologycrowd evacuationsound beaconstunnel evacuationdirectional sound To reference this document use: http://resolver.tudelft.nl/uuid:70c33367-75b9-44a6-b337-69ec4cecd0b2 DOI https://doi.org/10.1080/00140130410001695942 TNO identifier 11691 Source Ergonomics, 47 (10), 1131-1140 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.