Study methodology
The effects of noise and vibration have often been investigated separately [8]. In
addition, there are few studies on the joint evaluation of noise and vibration on bus,
in particular passengers.
In this study the noise and whole-body vibration were measured in 3 types of
urban buses. The results revealed that the noise levels in all samples were higher
than the relevant standards while the vibrations at the passenger seats were non
uncomfortable vibrations. In addition, the results indicated that the age and type of
bus affect noise and vibration inside buses. Also, it was found that the engine and
wheels of the bus are the major sources of noise and vibration inside buses.
Therefore, more researches must be conducted to study on the joint evaluation of
noise and vibration on bus, in particular passengers.