In order to describe the protective action of safety belts, an evaluation was made of national and international literature to determine to what extent injuries are possible despite the wearing of the belt, to what extent they can be attributed to the action of the belt itself, and whether these injuries associated with the belt might be more serious than those expected if the belt were not worn. In the experimental research into the effectiveness of conventional belt systems it was shown that this effectiveness depends on the belt geometry, the belt slack, seating position and impact speed. A comparison of improved belt systems showed that an additional inertia belt is of the greatest importance for improving effectiveness. As regards the effectiveness of the belt, accident analyses showed that the greatest decrease in injury is to the head and extremities; increases in injury caused by the wearing of the belt are, if they occur at all, to the chest and abdomen, and to the cervical vertebrae. Injuries specific to the belts are mostly light to medium severe in the place where the belt is positioned. The range of effectiveness of safety belt systems is an impact speed of between 40 km/h and 50 km/h. For special user groups such as children, pregnant women and old people, the belt offers general protection, but it has to be adjusted to the modified body. Looked at as a whole the belt offers a high degree of protection; the frequency of adverse effects is probably less than 1 percent. (TRRL)

  • Corporate Authors:

    Federal Institute of Road Research, Germany

    Bruhlerstrasse 1, Postfach 510530
    D-5000 Cologne 51,   Germany 
  • Authors:
    • Rueter, G
  • Publication Date: 1978-6


  • German

Media Info

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

Subject/Index Terms

Filing Info

  • Accession Number: 00316862
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Report/Paper Numbers: Report 7725 Monograph
  • Files: ITRD, TRIS
  • Created Date: May 21 1981 12:00AM