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Reversing Alarm of M- and N-Vehicles

Informal document GRB-64-06 (64th GRB, 5–7 September 2016, agenda item 2). Reversing Alarm of M- and N-Vehicles. www.bmvi.de. Contents:. 1. Present Situation 2. Problems 3. Solutions. Present Situation ( 1 ). Most vehicles above 3.500 kg are equipped with a Reversing Alarm.

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Reversing Alarm of M- and N-Vehicles

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  1. Informal documentGRB-64-06 (64th GRB, 5–7 September 2016, agenda item 2) Reversing Alarm of M- and N-Vehicles • www.bmvi.de

  2. Contents: www.bmvi.de | 09. März 2015 1. Present Situation 2. Problems 3. Solutions

  3. Present Situation ( 1 ) • Most vehicles above 3.500 kg are equipped with a Reversing Alarm Reversing Alarm equipment also available for Retrofit Strictly spoken reversing alarms are forbidden at some CP (e.g. Germany, because no other audible signals beside horns are allowed; § 55 StVZO) Vehicle equipment often is based on the conditions of the Employer's Liability Insurance Association

  4. Present Situation ( 2 ) • Because • Using-Conditions differ (wide range: extreme loud to very quiet) and • the effect of insurances (“a lot helps a lot”), • the existing reversing noise level is based on the ambient noise of highway construction areas. Because of this, existing Reversing Alarms are very loud www.bmvi.de | 09. März 2015

  5. Present Situation ( 3 ) No specific harmonized standards or requirements were found We found only a few national laws e.g. Austria: § 18 KDV (“Warning devices”)

  6. Contents: www.bmvi.de | 09. März 2015 1. Present Situation 2. Problems 3. Solutions

  7. Problems 1. Reversing Alarms actually have no harmonized limits (Min. and Max.) 2. In urban and quiet areas Reversing Alarms are too loud(many complaints) 3. During 10.00 pm & 7:00 am Reversing Alarms are much too loud(many complaints) 4. Reversing Alarm is a substitute for AVAS at the UN-Regulation QRTV. This makes no sense, if there are no Minimum limits of reversing alarm!

  8. Contents: www.bmvi.de | 09. März 2015 1. Present Situation 2. Problems 3. Solutions

  9. Solutions Harmonization of Reversing Alarm under the 58-aggrement Harmonization could be based on existing national requirements Solutions without audible features could be incorporated Reversing-Alarm as part of UN-R 28 “Audible Warning devices (AWD)”

  10. Solution Details ( 1 ) Scope of Reversing Alarm inside UN-R 28 (AWD): N3 & M3 [& N2] vehicles for the carriage of passengers or goods Component-Approval & Approval of Fitting on the vehicle (like AWD) Component: Min-/Max-Levels, Frequencies; Microphone-distance 2 m (Laboratory- or Outside-tests; like AWD component) Vehicles: Min-/Max-Levels, Microphone-distance 7 m; height of 0,5 - 1,5 m (Outside-test; like AWD-mounting on the vehicle) www.bmvi.de | 09. März 2015

  11. Solution Details ( 2 ) 4 stage approach (Selectable Sound Pressure level (SPL)) Normal level: Urban-Area (SPL: Min. 68 dB(A) & Max. 78 dB(A)) High level: Road-Work-Area (SPL: Min. 80 & Max. 94 dB(A)) Low level: Quiet-Area (SPL: Min. 52 dB(A) & Max. 58 dB(A)) Night-switch Off: Deactivation of Sound (Recommendation: can be used from 10:00 pm - 5:00 am), if hazard warning lights will be activated automatically by using reversing gear

  12. Solution Details ( 3 ) After restarting the vehicle the “Normal level” noise has to be activated again! Also allowed: Automatically Level Adjustment : 5 dB(A) + 2 dB(A) above Ambient Noise between an Ambient Noise of 50 and 105 dB(A) Reversing alarm is not necessary, if a vehicle is equipped with a Rear-View- Camera in accordance to 2003/97/EC or UN-R 46 Revision 5 Rear view camera has to be activated automatically by selecting the reverse gear www.bmvi.de | 09. März 2015

  13. Conclusion If these main ideas would be accepted, Germany and OICA would try to prepare an informal document “Reversing Alarm” based on UN-Regulation No. 28 for next GRB-Session.

  14. Thanks for your attention! www.bmvi.de | 12. April 2014

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