for discussion. Notwithstanding paragraph 2 above, a description of this new approach is presented in Part A. 4. The members of the IWG developed this approach at a workshop and extended the principles to the seating procedures for the BioRID atd. This procedure, which has yet to be reviewed by all the IWG members, is set out in Annex 9. 5. The IWG reviewed the absolute height requirement for a head restraint, but are of the opinion that the issue cannot be solved in isolation and requested GRSP to reinstate this item in its formal agenda at their fifty-third session. 6. Concerns were raised in the IWG on the dimensional variation of 3-D H machines. The trend in seat design to include more pronounced lateral support, coupled with variation in the width of the 3-D H device, present a risk to consistent identification of the H-point. At its fifty-third session, GRSP indicated that the 3-D H machine might be more appropriate in Mutual Resolution 1 rather than in individual Regulations and gtrs. 7. Final recommendations for the use of BioRID depend on both the progress in concluding the build level of the device and on the injury criteria to be used. This work is ongoing and the IWG is not currently in a position to make recommendations. 8. Nevertheless, this document presents indicative values for injury criteria based upon the current status of the work and initial text which defines the handling and the use of the tool together with recommendations for the appropriate sled pulse. 9. Part B contains the core text of the proposal and uses [square brackets] to indicate that issues are still subject to final agreement by the IWG. Selected text has been shaded in grey to indicate the need for further discussion.
for discussion. Notwithstanding paragraph 2 above, a description of this new approach is presented in Part A. 4. The members of the IWG developed this approach at a workshop and extended the principles to the seating procedures for the BioRID atd. This procedure, which has yet to be reviewed by all the IWG members, is set out in Annex 9. 5. The IWG reviewed the absolute height requirement for a head restraint, but are of the opinion that the issue cannot be solved in isolation and requested GRSP to reinstate this item in its formal agenda at their fifty-third session. 6. Concerns were raised in the IWG on the dimensional variation of 3-D H machines. The trend in seat design to include more pronounced lateral support, coupled with variation in the width of the 3-D H device, present a risk to consistent identification of the H-point. At its fifty-third session, GRSP indicated that the 3-D H machine might be more appropriate in Mutual Resolution 1 rather than in individual Regulations and gtrs. 7. Final recommendations for the use of BioRID depend on both the progress in concluding the build level of the device and on the injury criteria to be used. This work is ongoing and the IWG is not currently in a position to make recommendations. 8. Nevertheless, this document presents indicative values for injury criteria based upon the current status of the work and initial text which defines the handling and the use of the tool together with recommendations for the appropriate sled pulse. 9. Part B contains the core text of the proposal and uses [square brackets] to indicate that issues are still subject to final agreement by the IWG. Selected text has been shaded in grey to indicate the need for further discussion.
ECE-TRANS-WP.29-GRSP-2018-27e.docx