Sound Generation For Enhanced Road Safety
Auto Tech Review|August 2020
With an ever-increasing number of fully electric and hybrid vehicles entering the market, we are witnessing a change in the acoustic experience in and around the car. The silent nature of the electric powertrain means that other road users miss the familiar acoustic cues that warn them of an approaching vehicle. To remedy this situation, Harman is working on various noise management solutions.
Rajus Augustine
Sound Generation For Enhanced Road Safety

INCREASED RISK OF ACCIDENTS DUE TO ELECTRIC VEHICLES

In case of electric vehicles (EV), pedestrians and other road users can no longer rely on their ears to determine how fast a vehicle is approaching or how close it already is. A number of studies have shown a strong correlation to increased risk to road users [1]. An analysis conducted by TAS Partnership Ltd – a UK-based passenger transport consultancy firm – showed that pedestrians are 40 % more likely to be hit by a hybrid or electric car compared to a gasoline or diesel engine vehicle [2]. Given the increasing proliferation of EVs on the roads, the risk to road-using groups has risen exponentially over the years.

On the contrary, some studies in countries such as Japan and the Netherlands show a lack of definitive proof of an increased accident risk [1]. Nevertheless, traffic experts have concluded that measures had to be taken to protect pedestrians from the potential danger of low-noise vehicles. Consequently, legislators around the world passed regulations requiring vehicles with reduced audibility to be equipped with a so-called Acoustic Vehicle Alerting System (AVAS).

AVAS REGULATIONS

Diese Geschichte stammt aus der August 2020-Ausgabe von Auto Tech Review.

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Diese Geschichte stammt aus der August 2020-Ausgabe von Auto Tech Review.

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