Better Residents’ Health After Switch to Electric Buses, Along with the noise levels there was a reduction of fatigue,
In the fall of 2019, all-electric buses were introduced on bus route 60 in Gothenburg. The implementation was linked to the ElectriCity project, with its participants from industry, research, and public agencies working for sustainable travel in an urban setting.
How much the electric bus transportation would affect the noise levels was not clear, and the same applied to how people’s health would be influenced. The low-frequency noise was particularly important, since it has a high disturbance potential and it is further less well attenuated by façades or noise barriers.Kerstin Persson Waye, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg.
In parallel, noise measurements were performed in several homes — including indoors, which is not otherwise standard procedure. These measurements required special rigging with 10–12 microphones in each dwelling unit to provide correct and representative data of the low-frequency noise. “So, there was an improvement: People felt significantly better. Although we can’t say with certainty that the results reflect the whole population and how lasting the positive health changes are, we think they may be generalizable in residential settings where bus transportation makes up a large share of the exposure. Given, too, that other forms of transportation in the urban environment are getting more silent, this could influence public health,” Persson Waye concludes.
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