Valid

JT/T 646.1-2025Highway noise barriers - Part 1: General technical requirements (English PDF)

公路声屏障第1部分：总体技术要求

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Issued by

Ministry of Transport of the People's Republic of China

Level / Type

National · Recommended

Issue date

August 29, 2025

Implementation date

December 1, 2025

Scope

JT/T 646.1-2025 is the English-translated version of 公路声屏障第1部分：总体技术要求.

JT/T 646.1-2025 is the Chinese industry standard "Highway noise barriers - Part 1: General technical requirements". It was issued on August 29, 2025 by the Ministry of Transport of the People's Republic of China, and took effect on December 1, 2025. It is in force and replaces JT/T 646.1-2016.

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Document preview — JT/T 646.1-2025

National Standard of the People's Republic of China

Issued by: Ministry of Transport of the People's Republic of China

Document data

1 Document data

Sector: Highway & Transport (industry standard).

Issuing body: Ministry of Transport of the People's Republic of China.

Date of issue: 2025-08-29.

Date of implementation: 2025-12-01.

Status: valid, replaces JT/T 646.1-2016.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

Editions of JT/T 646.1

Edition	Title	Revision	Status
JT/T 646.1-2025	Highway noise barriers - Part 1: General technical requirements	—	Valid
JT/T 646.1-2016	Highway Noise Barriers - Part 1: Classification	—	Obsolete

This page sells the current edition, JT/T 646.1-2025. Earlier editions are listed for reference only.

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