Global Advanced Research Journal of Engineering, Technology and Innovation (GARJETI) SSN: 2315-5124 October 2012 Vol. 1(7), pp 168-178

Copyright © 2012 Global Advanced Research Journals   


Original Research Articles

Evaluation of Whole-Body-Vibration Exposure to Cairo Subway (Metro) Passengers 

Manal El Sayed1, Shahira Habashy2 and Mohamed El Adawy3 

Department of Communications, Electronics and Computers, Faculty of Engineering, Helwan University, Cairo, Egypt

*Corresponding    author    E-mail: 

Accepted 10 September 2012



Vehicles (air, land and water), machinery (for example, those used in industry and agriculture) and industrial activities (such as pilling and blasting), expose people to periodic, random and transient mechanical vibration which can interfere with comfort, activities and health. Metro is one of the important and famous public transportations all over the world. High magnitude of whole-body vibration formed by the Metro may cause diseases and health problems to the human especially a low back pain. It leads to a muscular and bone system disorder of the neck and back. A previous epidemiological study reported that low-back pain (LBP) is spread among people exposed to whole-body-vibration frequently. LBP was significantly related with the levels of uncomfortable road vibrations, and, importantly, increased with total mileage. The aim of this study is to give an account of daily exposure to vibration and vibration dose value exposed to the passengers travelled using Cairo metro by measuring the whole body vibration on the passenger's seat pan (seat back and seat surface) and on the floor. The results were evaluated according to the health guidelines of the international standards ISO 2631-1:1997, Directive 2002/44/EC of the European Parliament and ISO 2631-5:2004. 

Keywords: Whole-body vibration (WBV), vibration dose value (VDV), low back pain (LBP), ISO 2631-1:1997.

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