WHOLE-BODY VIBRATIONS IN ROAD CONSTRUCTION VEHICLES

HELKROPPSVIBRATIONER I ENTREPRENADFORDON

Fifty-six road construction vehicles, such as digging machines, band tractors, wheel-mounted loaders, road planers and dumpers have been investigated as regards driver's exposure to whole-body vibrations. Vibrations within the frequency range of 1-80 hz were recorded in three directions under normal operating conditions. A special whole-body seat transducer, interposed between the driver's buttocks and the seat, was used during the measurements. The results have been evaluated in accordance with ISO-2631 and a Swedish draft for national standard. The data analysis consisted in determining 1/3-octave bands, broad banded weighted levels and the number of impacts with a crest factor greater than six. In most cases it was the low frequency vibrations (1-4 hz) in the vertical direction which caused some reduction in the driver's daily exposure time. High levels of vibrations existed especially among band tractors, and a reduction in daily exposure time was recommended for all of them. For the rest of the vehicles differences in vibration levels and, consequently, in recommended exposure time (2-8 hours) were found. The main reason for these disparities is most probably differences in transport mode, soil types and character of the work which had to be carried out. For each group of vehicles the average number of impacts was less than 3. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03472248
• Corporate Authors:

  National Board of Occupational Safety and Health

  S-171 84
  Solna,   Sweden 
• Authors:
  • Lundstroem, R
  • Lindberg, L
• Publication Date: 1983

Language

• Swedish

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 88 p.
• Serial:
  • Publication of: National Board of Occupational Safety and Health
  • Publisher: National Board of Occupational Safety and Health
  • ISSN: 0347-2248

Subject/Index Terms

• TRT Terms: Anthropometry; Anthropometry; Construction equipment; Crash exposure; Measurement; Measuring instruments; Physiological tolerance; Road construction; Seats; Transducers; Truck drivers; Truck tractors; Vibration
• Uncontrolled Terms: Exposure
• ITRD Terms: 3674: Equipment; 2055: Human body; 2051: Human tolerance; 6136: Measurement; 1388: Seat (veh); 5558: Vibration
• Subject Areas: Construction; Highways; Safety and Human Factors; Vehicles and Equipment; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 00382200
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Report/Paper Numbers: 1983:18 Monograph
• Files: ITRD, TRIS
• Created Date: Apr 30 1984 12:00AM