EN 1794-2:2024/prA1
(Amendment)Road traffic noise reducing devices - Non-acoustic performance - Part 2: Methods of determination of the general safety and environmental characteristics
- Abstract
This document specifies methods and criteria for assessing the general safety and environmental performance of road traffic noise reducing devices under typical roadside conditions. Appropriate test methods are provided where these are necessary. The treatment of each topic is covered separately in Annexes A to F.
- Status
- Not Published
- Publication Date
- 27-Jun-2028
- Technical Committee
- CEN/TC 226 - Road equipment
- Drafting Committee
- CEN/TC 226/WG 6 - Noise reducing devices
- Current Stage
- 4020 - Submission to enquiry - Enquiry
- Start Date
- 23-Jul-2026
- Due Date
- 17-Mar-2027
- Completion Date
- 23-Jul-2026
EN 1794-2:2024/prA1 is a CEN draft amendment to EN 1794-2:2024 for road traffic noise reducing devices. It updates the part of the EN 1794 series that covers non-acoustic performance, specifically the methods used to determine general safety and environmental characteristics. The amendment is under CEN enquiry and will change the base standard if approved.
What does EN 1794-2:2024/prA1 specify?
EN 1794-2:2024/prA1 specifies changes to the methods used to assess the general safety and environmental performance of road traffic noise reducing devices under typical roadside conditions. The underlying Part 2 is organized so that each topic is covered separately in Annexes A to F, and this amendment targets the evaluation text in Annex B.
This draft amendment is part of the EN 1794 series, which also includes Part 1 on mechanical and stability characteristics. In practice, that means the family separates structural performance from safety and environmental performance, so users can select the part that matches the property they need to assess.
What are the key requirements of EN 1794-2:2024/prA1?
EN 1794-2:2024/prA1 changes the evaluation sequence in Annex B, subclause B.3.7. The practical effect is that the way results are recorded for this evaluation is now clearer and more explicit, which matters when laboratories, manufacturers, and specifiers compare outcomes.
- In B.3.7, the former B.3.7.3 is renumbered as B.3.7.4 Classification. This keeps the structure aligned after the insertion of a new subclause.
- A new B.3.7.3 Results is added. This gives a dedicated place for recording the outcome of the evaluation before classification is applied.
- The new results use three categories: A, B, and C. In practice, users can report the result in a consistent format instead of describing it informally.
- Category A is for free pieces not meeting the criteria. This signals a non-acceptable outcome in the evaluation record.
- Category B is for free pieces meeting the criteria. This shows that free pieces were present but still acceptable under the method.
- Category C is for no pieces at all. This provides a clear outcome when the evaluation finds nothing to record.
- Because these categories sit in the evaluation subclause, they support reporting and review. That helps during test reporting, conformity checks, and technical comparisons.
What terms does EN 1794-2:2024/prA1 define?
- Road traffic noise reducing devices - Devices installed to reduce noise from road traffic.
- Non-acoustic performance - Performance aspects other than sound reduction, such as safety and environmental characteristics.
- General safety and environmental characteristics - The set of safety and environmental properties assessed in Part 2.
- CEN - The European Committee for Standardization, which publishes the amendment.
- CEN/TC 226 - The CEN technical committee “Road equipment”, which prepared the document.
- prA1 - The draft amendment identifier, showing that this is amendment A1 in draft form.
- Annex B - The annex where the evaluation subclause is modified by this amendment.
Who uses EN 1794-2:2024/prA1?
EN 1794-2:2024/prA1 is used by manufacturers and suppliers of road traffic noise reducing devices, by test laboratories that evaluate those devices, and by engineers or quality managers who specify or check roadside product performance. It is also relevant to national standards bodies and technical committees working with road equipment and environmental protection. Buyers and project teams use it when they need to confirm which evaluation wording applies to a device that will be installed beside roads.
What changed in EN 1794-2:2024/prA1 from the previous edition?
EN 1794-2:2024/prA1 will amend EN 1794-2:2024. The changes stated in the document are:
- B.3.7.3 “Classification” is renumbered to B.3.7.4 “Classification”.
- A new B.3.7.3 “Results” is added.
- The new “Results” subclause introduces three outcome labels: A, B, and C.
Which standards are used with EN 1794-2:2024/prA1?
- EN 1794-2:2024 - The base standard that this draft amendment will modify.
- EN 1794-1 - The companion part in the EN 1794 series, covering methods of determination of the mechanical and stability characteristics.
What does the EN 1794-2:2024/prA1 document contain?
EN 1794-2:2024/prA1 contains a European foreword, a contents page, and two numbered modifications. The body is short and focused on Annex B, subclause B.3.7 in the evaluation section. One change renumbers the classification subclause, and the other inserts a new results subclause with three outcome labels. This makes the document a targeted amendment rather than a full rewrite of the parent standard.
Relations
- Effective Date
- 29-Apr-2026
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Frequently Asked Questions
EN 1794-2:2024/prA1 is a draft published by the European Committee for Standardization (CEN). Its full title is "Road traffic noise reducing devices - Non-acoustic performance - Part 2: Methods of determination of the general safety and environmental characteristics". This standard covers: This document specifies methods and criteria for assessing the general safety and environmental performance of road traffic noise reducing devices under typical roadside conditions. Appropriate test methods are provided where these are necessary. The treatment of each topic is covered separately in Annexes A to F.
This document specifies methods and criteria for assessing the general safety and environmental performance of road traffic noise reducing devices under typical roadside conditions. Appropriate test methods are provided where these are necessary. The treatment of each topic is covered separately in Annexes A to F.
EN 1794-2:2024/prA1 is classified under the following ICS (International Classification for Standards) categories: 93.080.30 - Road equipment and installations. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1794-2:2024/prA1 has the following relationships with other standards: It is inter standard links to EN 1794-2:2024. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1794-2:2024/prA1 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2026
Protihrupne ovire za cestni promet - Neakustične lastnosti - 2. del: Metode
ugotavljanja značilnosti glede splošne varnosti in okoljske karakteristike
Road traffic noise reducing devices - Non-acoustic performance - Part 2: Methods of
determination of the general safety and environmental characteristics
Lärmschutzvorrichtungen an Straßen - Nichtakustische Eigenschaften - Teil 2: Methoden
zur Bestimmung der allgemeinen Sicherheits- und Umweltmerkmale
Dispositifs de réduction du bruit du trafic routier - Performance non acoustique - Partie 2
: Méthodes de détermination des caractéristiques générales de sécurité et des
caractéristiques environnementales
Ta slovenski standard je istoveten z: EN 1794-2:2024/prA1
ICS:
13.020.99 Drugi standardi v zvezi z Other standards related to
varstvom okolja environmental protection
17.140.30 Emisija hrupa transportnih Noise emitted by means of
sredstev transport
93.080.30 Cestna oprema in pomožne Road equipment and
naprave installations
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
EN 1794-2:2024
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
July 2026
ICS 93.080.30
English Version
Road traffic noise reducing devices - Non-acoustic
performance - Part 2: Methods of determination of the
general safety and environmental characteristics
Dispositifs de réduction du bruit du trafic routier - Lärmschutzvorrichtungen an Straßen - Nichtakustische
Performance non acoustique - Partie 2 : Méthodes de Eigenschaften - Teil 2: Methoden zur Bestimmung der
détermination des caractéristiques générales de allgemeinen Sicherheits- und Umweltmerkmale
sécurité et des caractéristiques environnementales
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 226.
This draft amendment A1, if approved, will modify the European Standard EN 1794-2:2024. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration.
This draft amendment was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic,
...