E-scooter firms test ‘tuba hum’ as alert for pedestrians

Small speakers, similar to those in mobile phones, will be fitted to the scooters. The hope is to create a distinctive sound that does not dramatically add to noise pollution.
Small speakers, similar to those in mobile phones, will be fitted to the scooters. The hope is to create a distinctive sound that does not dramatically add to noise pollution.
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Public e-scooters are to emit a “hum” similar to that of a tuba in a bid to prevent accidents and improve their safety record.

University College London is working with rental companies in the capital to create a warning sound to alert pedestrians of scooters’ presence after a series of accidents.

TIER, Lime and Dott — all of which are authorised to operate in London as part of the government’s e-scooter trials — are taking part in the pilot. The plan is to trial the sound in London this year before creating an industry standard and rolling it out nationwide.

More than 130 pedestrians were injured by e-scooters in the year to June 2021, according to government figures. The figures do not differentiate between