London Trials Noise-Emitting Electric Buses To Improve Safety

London’s electric and hybrid buses are set to become noisier in the coming months as the city trials a new sound system to alert people to the vehicles’ presence.

Transport for London (TfL), the organization in charge of London’s bus network, has developed the sound, which is played through special speakers inside the front of the bus, to ensure the safety of vulnerable road users. Without the sound, TfL says, these hybrid and electric vehicles are “almost silent” and could pose a safety risk, particularly for people who are blind or partially sighted.