Evaluation and modeling of motorcyclists restraint systems

In France, in 2015,motorcyclists represent 43% of seriously injured accident victims in road traffic. At the same time, even though motorcyclists impact crashes against the road restraint systems represent on average 10% of accidents in road traffic, motorcyclists present a risk of death from30 to 80 times upper than the risk of death for users of vehicles involved in the same type of accidents. To enhance the safety of motorcyclists, Vehicle Restraints Systems (VRS) are fitted to the lower part of restraint systems for motorcyclists. Motorcyclist's Restraint Systems (MRS) are designed to absorb shocks gradually and to preventmotorcyclists to pass through the lower part of VRS, to hit a post and be severely injured. Before being installed on the roadsides, MRS have to be crash-tested according to standards in order to evaluate their safety and ensure motorcyclists safety. However, there are only normative procedures to test MRS, the LIER procedure in the French context and the procedure EN 1317-8 in the European context. To assess both normative procedures and propose new provisions which can be used as normative proceduremore advanced on the protocol ofMRS performances assessment tests, numerical simulations were performed. A new demarche of MRS performances testing was developed. The new demarche associates parametric study and one real impact test. A numericalmodel ofMRS performances testing was developed and was correlated on one real impact test on other device of same type. Once correlated, the model was used to conduct a parametric study on the test conditions and the materials mechanical properties of theMRS. Finally, the new demarche ofMRS performances assessments contributes to classification ofMRS following performances levels. The new demarche also contributes to the determination of critical scenarios for themotorcyclists for the studiedMRS.

  • Authors:
    • KODJO, Vidjannagni
  • Publication Date: 2016


  • French

Media Info

  • Media Type: Digital/other
  • Pagination: 156 p

Subject/Index Terms

Filing Info

  • Accession Number: 01629322
  • Record Type: Publication
  • Source Agency: Institut Francais des Sciences et Technologies des Transports, de l'Amenagement et des Reseaux (IFSTTAR)
  • Files: ITRD
  • Created Date: Mar 17 2017 10:35AM