Occupational noise in urban buses—a short review

Mohammadi, 2014; Portela & Zannin, 2010; Zannin, 2008). The scope of daily exposure to the noise (depending on the vehicle model) is 67.9 dB≤Lex8h≤85.5 dB (A) (Bruno et al., 2013; Zannin, 2008). It is also already pointed that the noise level depends on the type of city bus route, so the equivalent continual noise level can go from 84dB to 91dB (Mukherjee et al., 2003).