GRSP-56-39
Proposal to amend the draft amendment to GTR No. 9 on the bumper test area

Proposal from the Bumper Test Area Task Force, submitted as an alternative to the proposal in document GRSP/2014/17 as amended by document GRSP-56-38, to revise the procedure for determining the bumper test area under the pedestrian safety regulation. This proposal corrects shortcomings in the current definitions which could lead to a narrower test area than intended (leading to less effective pedestrian protection). This proposal includes a “bumper beam” determination method.

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Excerpts from session reports
GRSP | Session 61 | 8-12 May 2017

5. The expert from Germany informed GRSP that the IWG had planned to meet for the last time to move Phase 2 forward and incorporate the flexible pedestrian legform impactor (FlexPLI). GRSP agreed to resume discussion at its December 2017 session on a consolidated document provided by the IWG incorporating: (i) the draft amendment to the UN GTR on FlexPLI (ECE/TRANS/WP.29/GRSP/2014/15), (ii) the new improved bumper test proposed by the Task Force on Bumper Test Area (TF-BTA) (ECE/TRANS/WP.29/GRSP/2015/2) and (iii) the Injury Assessment Reference Values (IARVs)(ECE/TRANS/WP.29/GRSP/2017/3). Moreover, the IWG would provide, at that time, a final report of the activities of the group based on ECE/TRANS/WP.29/GRSP/2014/16. The Chair of GRSP offered to host the meeting of the IWG at its earliest convenience in Washington, D.C.

GRSP | Session 62 | 12-15 Dec 2017

5. The expert from Germany, on behalf of the Chair of the IWG, informed GRSP that the group had met on 24 November 2017. As a result of this meeting, he was able to introduce the consolidated text of draft Amendment 2 to UN GTR No. 9 (GRSP-62-15-Rev.1), incorporating: (a) the flexible pedestrian legform impactor (FlexPLI) (ECE/TRANS/WP.29/GRSP/2014/15), (b) the new bumper test area (ECE/TRANS/WP.29/GRSP/2015/2) and the removal of the study reservation on the Injury Assessment Values (IARVs) (ECE/TRANS/WP.29/GRSP/2017/3). He also introduced the progress report of the IWG (GRSP-62-16) superseding ECE/TRANS/WP.29/GRSP/2014/16. GRSP was not yet in the position to adopt the proposal and requested the secretariat to distribute GRSP-62-15-Rev.1 and GRSP-62-16 with official symbols for final review at its May 2018 session. Moreover, GRSP requested the IWG to draft Addendum 3 to Mutual Resolution No. 1 of the 1958 and the 1998 Agreements to provide drawings and technical specifications of the FlexPLI. GRSP also requested the IWG to liaise with the FlexPLI manufacturer to have free availability of the above-mentioned technical information. Finally, GRSP agreed to seek endorsement from WP.29 and the Executive Committee of the 1998 Agreement (AC.3) at their March 2018 sessions to extend the mandate of the IWG by one year.

GRSP | Session 60 | 13-16 Dec 2016

6. The expert from the United States of America announced that the National Highway Traffic Safety Administration (NHTSA) had agreed to accept Injury Assessment Reference Values (IARVs) to move Phase 2 forward and to incorporate the flexible pedestrian legform impactor (FlexPLI). He added that IARVs could change as a result of cost benefits analysis conducted during the adoption process of the GTR when transposed into the national legislation of Contracting Parties. Accordingly, he proposed GRSP-60-17 to amend Part A of the statement of technical rationale and to justify of ECE/TRANS/WP.29/GRSP/2014/15. Moreover, he reported that his administration had not yet completed its cost-benefit analysis, but the United States of America New Car Assessment Programme was already using the FlexPLI and the new improved bumper test proposed by the Task Force on Bumper Test Area (TF-BTA) (ECE/TRANS/WP.29/GRSP/2015/2). He concluded that for the new proposed requirements for the head form tests (ECE/TRANS/WP.29/GRSP/2014/5) some more analysis would be needed.

7. Referring to the statement of the expert from the United States of America, GRSP noted that at its May 2017 session it would likely be in the position to recommend the Phase 2 of the GTR as a full package: ECE/TRANS/WP.29/GRSP/2014/15, ECE/TRANS/WP.29/GRSP/2015/2 and GRSP-60-17. The expert from the United States of America announced that a meeting of the IWG in Washington, D.C. would be scheduled at the beginning of 2017. Thus, GRSP recommended for its May 2017 session:

  1. IWG to provide a final report of the development of Phase 2 (update of ECE/TRANS/WP.29/GRSP/2014/16, fifth status report of the IWG),
  2. IWG to finalise the analysis because the new headform test were incorporated as well (ECE/TRANS/WP.29/GRSP/2014/5) and
  3. the secretariat to distribute GRSP-60-17 with an official symbol.

GRSP | Session 56 | 9-12 Dec 2014

8. The expert from EC introduced ECE/TRANS/WP.29/GRSP/2014/17 and ECE/TRANS/WP.29/GRSP/2014/30, submitted by the Task Force on Bumper Test Area (TF-BTA), a subgroup of the Informal Working Group on global technical regulation No. 9 – Phase 2, and proposing an amendment to the provisions of the bumper test. He explained that the current provisions allow the area to be narrower than intended in the provisions of the UN GTR. He added that ECE/TRANS/WP.29/GRSP/2014/17 was proposing a new method by introducing a practical determination of angle surfaces, to be tested with the FlexPLI, by using a corner gauge. Moreover, he explained that ECE/TRANS/WP.29/GRSP/2014/30 was proposing the introduction of the definition of rigid bumper beam in the test area in addition to the above-mentioned new test method. He finally informed GRSP that a test report on research conducted by EC on this issue was available. The expert from Japan gave a presentation (GRSP-56-03) to support ECE/TRANS/WP.29/GRSP/2014/17. The expert from Korea presented GRSP-56-20 supporting ECE/TRANS/WP.29/GRSP/2014/30. The expert from OICA introduced GRSP-56-30, supporting the new method as proposed by ECE/TRANS/WP.29/GRSP/2014/17, because the test is less sensitive to specific design features and it could be performed without disassembling parts. Moreover, GRSP discussed GRSP-56-38 and GRSP-56-39, superseding respectively ECE/TRANS/WP.29/GRSP/2014/17 and ECE/TRANS/WP.29/GRSP/2014/30.

9. GRSP endorsed GRSP-56-39, but did not support GRSP-56-38. The secretariat was requested to distribute GRSP-56-39 with an official symbol for consideration at its May 2015 session. It was agreed that this proposal would be discussed further by the Contracting Parties under the 1998 Agreement and by GRSP at its next session as a full package with: (i) an updated draft proposal of Phase 2 of the UN GTR (ECE/TRANS/WP.29/GRSP/2014/15) and (ii) an updated final report of the IWG (ECE/TRANS/WP.29/GRSP/2014/16).

GRSP | Session 59 | 9-13 May 2016

8. The expert from EC clarified that ECE/TRANS/WP.29/GRSP/2015/2, had been prepared by the experts of the Task Force on Bumper Test Area (TF-BTA) which is a subgroup of the IWG on Phase 2 of the UN GTR that would incorporate the flexible pedestrian legform impactor (FlexPLI). GRSP noted that once the issue of the Injury Assessment References Values (IARVs) for the flexible lower legform (FlexPLI) to bumper test would be agreed upon by GRSP on the basis of ECE/TRANS/WP.29/GRSP/2015/2 to improve bumper test, the text would be incorporated into the draft proposal of UN GTR (ECE/TRANS/WP.29/GRSP/2014/15).