On the impact of electric vehicle transition on urban noise pollution

Abstract

The transition from internal combustion engine vehicles (ICEVs) to electric vehicles (EVs) in modern cities has significantly increased in recent years. Since electric motors are considerably quieter than internal combustion engines, this transition may reduce noise pollution in large urban settings. This reduction is important because noise is still the second most significant environmental risk after air pollution. There is consensus that EVs can reduce noise at low speeds and frequencies, especially for heavy-duty vehicles. However, case studies indicate that at speeds over 50 km/h, EVs do not contribute significantly to noise reduction. Additionally, the effect of mandatory Acoustic Vehicle Alert Systems and fast-charging facilities on overall noise levels is still unclear. This article concisely reviews recent developments about replacing ICEVs with EVs in urban areas from an environmental noise viewpoint. It intends to summarize the available literature and highlight future research trends.