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WBU study shows that UN levels are too low with the biggest concern being the risk of masking. The background noise applied during testing is an important factor and it often differs from real traffic situations. OICA proposed to design an adequate background sound from real world recordings taken at different spots.
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WP.29-167-23 | Quiet car research
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Quiet car research
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Reference Number: WP.29-167-23
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Presentation of research conducted by the World Blind Union and National Federation of the Blind in the United States to validate the effectiveness of the proposed minimum sound levels for quiet vehicles at 10 and 20 km/h. The researchers concluded that the proposed sounds levels do not add significantly to the detectability of an approaching vehicle by a blind pedestrian and that internal combustion engine vehicles were detected substantially sooner than quiet vehicles equipped with the proposed acoustic vehicle alerting system (AVAS).
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Submitted by: WBU
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Meeting Sessions: 167th WP.29 session (10-13
Nov 2015)
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Document date: 09 Nov 15
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Relevant to
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View full document file for more information
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