8. The expert from Germany introduced GRSP-65-17, explaining that the intention of the pedestrian protection test procedures as described in UN GTR No. 9 and UN Regulation No. 127 was to deliver an adequate level of protection for pedestrians in accidents up to an impact velocity of 40 km/h. International Harmonized Research Agenda research has shown that the cumulative frequency curves versus vehicle impact speed for pedestrian injuries and their respective injury causing parts showed that 58 per cent of the child head abbreviated injury scale (AIS) 2+ injuries were addressed to a vehicle impact speed up to 40 km/h, 40 per cent to adult head AIS2+ injuries and 50 per cent of the adult leg AIS2+ injuries respectively. He added that test procedures described in UN Regulation No. 127 and UN GTR No. 9 were meant to represent worst case scenarios. However, it was agreed that this was not the case for all possible scenarios and that also at lower impact speeds higher injury risk could occur due for example to different heights of the vehicle because of adjustable suspension systems. The representative from OICA reminded that during the type approval process the worst case scenario will be considered. GRSP agreed to keep GRSP-65-17 as an informal document for the December 2019 session of GRSP, awaiting further rationales to develop a proposal of amendments.

33. Referring to agenda item 3(b) (see paragraph 8 above), the expert from Germany suggested postponing discussion on GRSP-65-21 to allow careful consideration of the new provisions of the General Safety Regulation of the European Union, which had proposed an extension of the head impact zone. GRSP agreed to defer discussion of GRSP-65-21 to its December 2019 session and to distribute it with an official symbol.

4. The expert from Germany reiterated his intention to find a solution (GRSP-65-17) to represent worst case scenarios, due to, for example, different heights of the vehicle from adjustable suspension systems. He also indicated that a concrete proposal had been submitted under agenda item 11 on UN Regulation No. 127. GRSP agreed to defer discussion to its December 2020 session, pending consideration of the Executive Committee of the 1998 Agreement (AC.3) at its November 2020 session.

4. Concerning the issue of different heights of the vehicle from adjustable suspension systems, the expert from Germany requested to resume consideration on this issue (GRSP-65-17) at the May 2021 session of GRSP. GRSP agreed with the request from the expert from Germany and noted that amendment 3 would be completed at the March 2021 session of the Executive Committee of the 1998 Agreement (AC.3) with the incorporation of provisions concerning the revised headform test. Thus, GRSP noted that a possible amendment incorporating the adjustable suspension systems would be a new one following the endorsement of a new request of authorization to develop the work submitted by a Technical Sponsor.

5. Concerning the issue of different heights of the vehicle from adjustable suspension systems, the expert from Germany withdrew GRSP-65-17 and informed GRSP that a revised proposal would be submitted at the December 2021 session.

8. The expert from Germany in GRSP-65-17 had indicated a problem to represent worst case scenarios, due for example, to different heights of the vehicle from adjustable suspension systems, GRSP noted that a concrete proposal had been submitted under agenda item 19 on UN Regulation No. 127. GRSP agreed to defer discussion to its May 2020 session.