Real-world sound emission testing is becoming a reality for motorcycles

Wednesday, March 10, 2021
Noise test by IDIADA, Spain
Noise test by IDIADA, Spain

The 183rd session of the World Forum for Harmonisation of Vehicle Regulations (WP.29) has adopted an important amendment to the UN Regulation No. 41 concerning the approval of motorcycles with regards to vehicle noise emissions in order to introduce broader and more stringent testing. Coming on top of the regular pass-by noise test, the revised Additional Sound Emission Provisions (ASEP) reinforce the criteria for type-approval of motorcycles.

Committed to effectively limit the noise emitted by new motorcycles, IMMA have closely collaborated with regulators to improve the sound emission test procedure.

IMMA’s Technical Director Daniela Leveratto said "Motorcycles require test criteria specifically dedicated to their category to consider their characteristic road behavior, considering also that motorcycles are usually not covered by bodywork or fairings and they have, therefore, less space for sound dampening measures compared to cars. As from 1 September 2023, new types of motorcycles will have to undergo a more stringent methodology of testing their sound emissions in the Countries applying the updated UN Regulation No. 41, in conditions addressing their real use on the roads".

Working in a group of noise experts under the aegis of UNECE, the industry has proposed to widen the range of vehicle operating conditions for Additional Sound Emission Provisions (ASEP), presenting it in a new form called RD-ASEP, with a view to measuring real-driving (RD) conditions. The improvements in the ASEP test procedure include among others:

1. widening the range of vehicle operations (vehicle speed, engine rpm);
2. introducing a non-constant speed approach to the measurement area;
3. allowing any constant throttle position within the measurement area;
4. covering any gear and any acceleration;
5. introducing an extended sound measurement including during deceleration of the vehicle;
6. increasing the number of test points up to 18 instead of 4 currently, during type approval verification;
7. updating conformity of production and market surveillance provisions.

ASEP were first introduced into UN Regulation No. 41 in 2012 to reflect real-world motorcycle riding, by including additional test runs within a wider range of speeds - in several gear ratios - and ensuring that the results correlate with those obtained during the pass-by test.

About GRBP and WP.29
In existence for more than 50 years, and with participants coming from all over the world, especially the main motor vehicle producing countries, the World Forum for Harmonization of Vehicle Regulations (WP 29) offers a unique framework for globally harmonized regulations on vehicles.
The Working Party on Noise and Tyres (Groupe Rapporteur Bruit et Pneumatiques - GRBP) is a subsidiary body of the World Forum for Harmonization of Vehicle Regulations (WP.29) that prepares regulatory proposals on vehicle noise and tyres for consideration and adoption by WP.29. To develop those requirements, GRBP conducts research and analysis.

UNECE Inland Transport Committee (ITC) round table on road safety

Friday, February 26, 2021

IMMA President Mr. Rakesh Sharma participated in the virtually held round table “Road safety at a crossroads at the dawn of the new Decade of Action” of the 83 session of the UNECE Inland Transport Committee (ITC)

​​​​​​​​​​​​​​ "Road safety is an existential issue for motor-vehicle manufacturers, not only as a societal obligation but also from a business point of view" ​​​​​​​​​​​​​​ said Mr. Rakesh Sharma during the closing panel. Mr Sharma additionally confirmed the manufacturers’ willingness to be co-opted in building road safety solutions. Ms. Luciana Iorio, Chair of WP.1 Global Forum for Road Traffic Safety, as moderator of the panel discussions stated her appreciation on IMMA’s contributions made over the years to activities of WP.1.

The Roundtable aimed to bring together key stakeholders for a strategic discussion on the new course of action to address the continuing crisis on global road safety since the international community was not able to achieve by 2020 the target 3.6 of the United Nations Sustainable Development Goals to halve the number of global deaths and injuries from road traffic accidents.

Some of the speakers, including Mr. Jean Todt, UN Secretary-General's Special Envoy for Road Safety and Ms. Olga Algayerova, Executive Secretary of the UNECE, the Minister of Transport of the Netherlands Ms Cora van Nieuwenhuizen and Mr. Dmitry Mitroshin, Russian Federation referred to the ongoing shift in mobility patterns especially to individual modes of transport due to the health pandemic, posing new challenges.

Dr. Etienne Krug and Dr. Nhan Tran of the World Health Organization announced a global UN event by the end of 2022 to promote the new global plan for action 2021-2030 currently under development and expected for publication in September 2021. This plan will emphasize the need for a patchwork of local solutions tailored to local issues and promote progressive iterative improvements leading to a significant reduction in road accidents, injuries and fatalities.

Other contributions were made by Mr. Matthew Baldwin (EU Coordinator for Road Safety), Mr. Rob McInerney (CEO of IRAP), Mr. Yuwei Li - Director of UNECE Sustainable Transport Division and representatives of ESCWA Mr. Moctar El Hacene, Division Director and Mr. Weimin Ren, Director of the Transport Division of UN ESCAP.

The Round Table ‘s key note speakers also noted that the changed mobility and the safety and sustainability challenges resulting from the pandemic should also be considered as an opportunity for a new perspective on improving road safety worldwide.

83rd session of the Inland Transport Committee

With the subsidiary bodies as WP.1 and WP.29, the ITC provides global intergovernmental forum, where United Nations Member States and international Organizations and transport sector stakeholders come together to forge tools for economic cooperation and negotiate and adopt international legal instruments on inland transport.

The Inland Transport is attended by policy makers, including Ministers, deputy Ministers and Heads of delegations of Contracting Parties to the 59 United Nations Transport Conventions under the purview of the ITC. Seven of the 59 Conventions are closely linked to road safety.

WP.29 adopts amendments to UN Regulation No. 78 and GTR No. 3 to update and harmonize motorcycle braking requirements

Wednesday, June 24, 2020

When it comes to motorcycle braking, UN Regulation No. 78 and Global Technical Regulation (GTR) No. 3 play an essential international role, as they are widely adopted and applied by governmental organisations around the world. It is therefore fundamental that both regulations are continuously updated with the latest safety developments and that the two legal documents are harmonized with compatible requirements.

A major step forward was made on 24 June 2020, at the 181st session of the United Nations World Forum for Harmonization of Vehicle Regulations (WP.29). Two parallel amendments to UN Regulation No. 78 and GTR No. 3 were adopted, introducing new requirements for state-of-the-art braking technology while keeping aligned both regulations.

The scope of the amendments includes electromagnetic immunity criteria for the anti-lock braking system (ABS), extending ABS performance requirements to include also three-wheeled vehicles, introduction of uniform prescriptions for the Emergency Stop Signal and specify the means and conditions for disabling the ABS, if equipped.

The proposals for the amendments were developed through extensive collaboration, led by experts from Italy and IMMA, with members from the UNECE’s Working Party on Automated/Autonomous Vehicles (GRVA). Prior to presenting the proposals for endorsement by the Global Forum WP.29, the GRVA had concluded discussions with the adoption of the amendments at the September 2019 and February 2020-sessions.

“The adoption of the amendments on motorcycle braking systems, with the GTR No. 3 and UN Regulation No. 78 is an excellent example of global harmonization of vehicle safety requirements, contributing to establishing the highest global safety standards, elimination of trade barriers and further enabling economies of scale for manufacturers. I am particularly grateful for the contributions in this process by GRVA experts from Canada, United Kingdom and the Netherlands.” said Mr Antonio Erario, Chairman of WP.29 and sponsor on behalf of Italy for the GTR. No. 3 amendments.

Mr. Pascal de Jonge, Chairman of the IMMA’s Vehicle Safety Committee said “The GTR No. 3 and UN Regulation No.78 contain the most severe test conditions in the world for motorcycle braking systems and therefore should be applied universally. This milestone significantly increases clarity for manufacturers with regards to type-approval and certification of vehicles equipped with the latest advances of motorcycle braking systems.”

The United Nations WP.29 meets in Geneva three times a year and oversees the development of Global Technical Regulations. Vehicle braking subjects are handled by the Working Party on Automated/Autonomous Vehicles (GRVA).

More information on WP.29 can be found here.