1. Task-force on reverse warning signal CURRENT STATUS in United nations C-WGN 16th – Wuhan – December 11, 2018

2. Agenda (6 chapters & more)01
REMINDER OF THE CONTEXT & ASSOCIATED WORKS
From 2016 to 2018 02
CURRENT STATUS OF THE NEW REGULATION IN PROGRESS
PART 02 SUBTITLE

3. Reminder of the CONTEXT
From 2016 to 2018 01

4. 01 Reminder of the CONTEXT
GRB-64 September 2016
Germany presented an analysis of the current diverging requirements and challenges for Reversing Alarms of M & N categories of vehicles and called for harmonization (GRB-64-06) because of complaints and accidents
Request from Germany for:
Harmonization with requirements based on UN-R28
RA with different levels of SPL
Automatic or manual level adjustment
Pause function
Management according to other safety devices as rear view camera
Current situation:
Vehicles >3,5t with RA based on ambient noise of highway construction areas, so very loud especially according to the period of the day/night
Based on Employer’s liability insurance association
RA mandatory or forbidden according to the CPs through national laws
Different using conditions
No harmonized limits

5. 01 Reminder of the CONTEXT
GRB-64 September 2016
Germany presented an analysis of the current diverging requirements and challenges for Reversing Alarms of M & N categories of vehicles and called for harmonization (GRB-64-06)
Experts from China, France, Germany, Hungary, Japan, Republic of Korea, Spain, Turkey and OICA expressed their interest to study further this issue and to propose a plan at next GRB-65 in January 2017
As an example of possible solution, proposal from Germany to amend the UN-R28 Audible Warning Device with introduction of provisions for Reversing Alarms (GRB )
Supported especially by Turkey according to the alternative they already proposed at WP.29 June 2016 to establish a new regulation (WP )

6. 01 Reminder of the CONTEXT
GRB-65 february 2017
The experts from Germany (GRB Rev.1) , Japan (GRB ) , Republic of Korea (GRB-65-19) and Turkey (GRB & GRB-65-14) outlined the present situation with reversing alarms at the national level, identified the existing problems in this field and proposed solutions.
- GRB agreed that, rather than amending UN-R28, a new regulation on Reversing Alarm should be prepared.
- Main issues: scope, pause function, alarm sound composition (sound levels and frequencies), categories of RA …
- Agreement of GRB for a new TF
According to all these studies/presentations, have to be clarified:
Scope through the vehicles/trailers categories
Sound levels, Frequencies … & Test methods associated
Using conditions, pause function, levels adjustment, categories of RA …
Alternative solutions to RA (Reversing camera, rear sonar, directional microphones, someone guiding …)

7. 01 Reminder of the CONTEXT
GRB-66 september 2017
Guidelines with Time line up to GRB-69 January (Term of References) have been prepared by the group TF-RA (GRB-66-07)
Organization of this TF:
Japan volunteer to lead this group
OICA as secretary
Experts from France, Germany, Netherlands, Republic of Korea, Turkey, EC and OICA agreed to take part in these TF works
Presentation by the expert of the Republic of Korea on the status of domestic accidents resulting from Reversing vehicles (GRB-66-02).
M1 caused the largest number of backup collisions
N1 & N2 caused the largest number of fatalities
The expert supports that all categories of vehicles should be equipped with at least one safety device for moving backward (rear view camera, RA, parking sensor)
The work must be done also with GRSG

8. 01 Reminder of the CONTEXT
GRB-67 january 2018
Status report to GRB by the expert from Japan as representative of the TF-RA
- Questionnaire to be sent to GRB experts with request for answer by April 20, 2018
Agreement on:
New regulation only for RA
Scope M3, N3, [M2], [N2]
In parallel to the IWG VRU-Proxi (Visibility & Detection of vulnerable road users)
Proposal to organize a survey through a questionnaire among GRB experts to collect information on national practices (TF-RA & 03)

9. 01 Reminder of the CONTEXT
GRB-68 september 2018
A draft proposal for a new Regulation should be presented as:
- Informal document at GRB-70 in September 2019
- Working document at GRBP-71 in January 2020
Status report by Japan (GRB-68-25) : TF-RA becomes TF- RW (Task-Force on Reverse Warning issues) with extension of one year.
Questionnaire and results: some positions are different/inconsistent to each other.
Open issues:
The scope of this new regulation
Sound level and sound quality (tonal sound / broad band sound / 1/3 octave broad band sound)
Pause switch and level adjustment with their re-operation

10. CURRENT STATUS
OF THE NEW REGULATION
CHAPTER SUBTITLE 02

11. NEW REGULATION IN PROGRESS
02 CURRENT STATUS OF THE NEW REGULATION
NEW REGULATION IN PROGRESS
Based on UN-R28 Audible Warning Device
Scope still to be decided
Automatic activation when reverse gear selected + propulsion system ON
TFRA-03-10
Proposal for a new Regulation on Reverse Warning Devices
based on decisions of 3rd TF on RA
PART I – Audible reverse warning device
PART II - Audible reverse warning signals for motor vehicles

12. NEW REGULATION IN PROGRESS
02 CURRENT STATUS OF THE NEW REGULATION
NEW REGULATION IN PROGRESS
PART I – Audible reverse warning device  are still under discussions:
3 levels [Low – Normal – High] according to
[quiet – normal – loud] times, and/or
Background noise Lmax [~40dB(A) - <60dB(A) - <80dB(A)]
Frequencies up to 4000Hz
Microphone at 2.00 ± 0.05m
Min. & Max. SPL according to:
Automatically non-adjustable/adjustable audible reverse warning device to ambient emission
Tonal sound, Broadband sound 400Hz-10kHz, 1/3 octave band sound 400Hz-4kHz
Time lapse activation/min. limit values reached < 0.5s
Endurance test

13. NEW REGULATION IN PROGRESS
02 CURRENT STATUS OF THE NEW REGULATION
NEW REGULATION IN PROGRESS
PART II - Audible reverse warning signals for motor vehicles  are still under discussions:
Min. & Max. SPL according to:
automatically non-adjustable/adjustable audible reverse warning device to ambient emission
Tonal sound, Broadband sound 400Hz-10kHz, 1/3 octave band sound 400Hz-4kHz
Introduction of a table of correction according to the background noise
Microphone at 7.00 ± 0.10m

14. NEW REGULATION IN PROGRESS
02 CURRENT STATUS OF THE NEW REGULATION
NEW REGULATION IN PROGRESS
Based on UN-R28 Audible Warning Device
Scope still to be decided
Automatic activation when reverse gear selected + propulsion system ON
Next meeting of the drafting group on December 11-12, 2018
Next meeting of the TF- RW on January 21-22, in Geneva before the next GRB-69
PART I – Audible reverse warning device
PART II - Audible reverse warning signals for motor vehicles