Abstract
A field study has been carried out to investigate whole-body vibration
exposure levels experienced by the train operators of an old train
which circulates between Tehran and Andimeshk in the south of Iran.
The objective of this study was to measure whole-body vibration transmitted
to personnel on the train. Fatigue Decreased Proficiency Boundary
(FDPB) and Exposure Limit (EL) were used to evaluate the vibration
measured in three directions. The health effects related to whole-body
vibration were statistically analyzed after completing a questionnaire.
The results indicated that the total equivalent acceleration level
induced in the personnel was higher than the permissible level of
FDPB (108dB) and exposure limit (114dB) for 12 hours of exposure,
recommended by ISO 2631. There were no statistically significant
relationships amongst the health variables and age except lack of
concentration, P=0.014, as well as job history. Conversely, there
was significant statistical relationship between EL and Hearing disorders,
Vomiting and Loss of appetite among personnel. Therefore, the statistical
test results only revealed some physiological effects with regard
to WBV. Hence, beside WBV other factors must be taken into consideration
to judge about other physiological or subjective disorders caused
by WBV.
Users
Please
log in to take part in the discussion (add own reviews or comments).