On the effect of second task for detection of alerting sound of electric vehicles

Katsuya Yamauchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Relative quietness of electric or hybrid electric vehicles is a matter of safety concern, because they are potentially dangerous to pedestrians when the approach of them becomes inaudible under urban noise. Hence, regulations regarding additional alerting sounds for the quiet vehicles (Acoustic Vehicle Alerting System; AVAS) have been developed in Japan as well as in global. Several studies have been conducted in different institutions to examine the feasible sound design for the AVAS to be detected in urban noise environment. In this paper, a cross-cutting perspective on the detectability of the AVAS sound compared to the background noise levels is provided. The acoustic power level of the vehicle sound, that means total acoustic power including mechanical and the alerting sound, was calculated from the sound level based on semi-free field assumption. Then the A-weighted sound pressure level al the point of the participants were estimated from the distance data in the literatures. The result suggests the effect of second task of the pedestrians. The paper also provides a pilot study on such effect through a laboratory experiment.

Original languageEnglish
Title of host publicationINTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering
EditorsAntonio Calvo-Manzano, Ana Delgado, Antonio Perez-Lopez, Jose Salvador Santiago
PublisherSOCIEDAD ESPANOLA DE ACUSTICA - Spanish Acoustical Society, SEA
ISBN (Electronic)9788487985317
Publication statusPublished - Jan 1 2019
Externally publishedYes
Event48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID - Madrid, Spain
Duration: Jun 16 2019Jun 19 2019

Publication series

NameINTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering

Conference

Conference48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID
CountrySpain
CityMadrid
Period6/16/196/19/19

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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