Abstract
For the common citizen electric vehicles are symbol of sustainability because of its high-energy efficiency. Nevertheless, other environmental factors should be attended and in this work the noise emission is considered together with energy for urban traffic average speed decisions. The research strategy, developed in theoretic field, is backgrounded by former studies that provided the relation between speed and energy both for electric and internal combustion vehicles. In addition, the noise reduction of electric vehicles is obtained from the revision of literature. The present study adapted and uniformed the referred information and developed representative equations. Using the ESdB criteria, that is the energy saved by decibel reduction as speed varies; a new nomogram is proposed that illustrates the importance of considering both noise and energy in urban traffic speed decisions. Theoretical simulations are presented considering different percentages of electric vehicles. These simulations allow conclusions on the effect of electric vehicles in urban traffic and on the optimum average speed to be considered as different percentages of electric vehicles are in service. The benefits of EV’s are only interesting when over 90% of urban vehicles are electrical and average speed is 50 km/h.
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Acknowledgements
The author thank NI&DEA Project collaborators for gathering basic information for the development of this work.
Funding
This work was financially supported by: Base Funding—UIDB/04708/2020 and Programmatic Funding—UIDP/04708/2020 of the CONSTRUCT—Instituto de I&D em Estruturas e Construções—funded by national funds through the FCT/MCTES (PIDDAC).
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Rodrigues, R.C. (2023). Influence of Electric Vehicles on Urban Traffic Noise and Fuel Consumption. In: Caetano, N.S., Felgueiras, M.C. (eds) The 9th International Conference on Energy and Environment Research. ICEER 2022. Environmental Science and Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-43559-1_46
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DOI: https://doi.org/10.1007/978-3-031-43559-1_46
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