An inventory of literature on two-wheeled vehicle accidents was carried out. An analysis of the accidents indicates that moped riders are hit from the side, while motorcyclists often hit the side of other vehicles. On the basis of simulation tests a simple test device was used to investigate the effect of various parameters on the impact process of crash helmets. For angular impacts on motorcycle helmets, angular accelerations exceeding all published human tolerance values were found. As so-called rotation injuries are very common among motorcycle fatalities, this could explain the relatively low preventive effect of motorcycle helmets. Neither Swedish nor international helmet standards give any method for determining the angular acceleration at angular impact. A low weight of the helmet is important to prevent driver fatigue. A large proportion of the adult population shows signs of impaired cervical vertebra, which affects the determining of helmet weight. In addition, a proposal for moped rider helmet standard is presented. /TRRL/

  • Corporate Authors:

    Chalmers University of Technology, Sweden

    Institutionen foer Trafiksaekerhet
    S-402 20 Goeteborg 5,   Sweden 
  • Authors:
    • ALDMAN, B
    • Lundell, B
  • Publication Date: 1977


  • Swedish

Media Info

  • Features: Figures; Photos; References;
  • Pagination: 116 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00179893
  • Record Type: Publication
  • Source Agency: Swedish National Road and Traffic Research Institute
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Sep 27 1978 12:00AM