
doi: 10.1121/1.5014661
Electric vehicles are fast becoming a reality and are being heralded as a real alternative to the highly polluting internal combustion engine fleet. Often electric vehicles are reported as being silent vehicles and may significantly reduce a population’s exposure to environmental noise. This paper investigates what effect the widespread adoption of an electric fleet would have in a midsize city in the United States. The source level of an electric fleet is estimated by a combination of previous pass-by measurements, published data, and calculation. These estimations are used to develop a noise map of the city assuming an electric fleet. Results are then compared to noise levels assuming the current fleet. Results show that while an electric fleet will improve environmental noise levels within a city, the overall benefit is limited when expressed using a traditional strategic noise map, primarily due to the use of a time averaged Leq indicator. In light of this, alternative metrics to better account for the changing acoustic characteristics of electric vehicles are discussed.
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