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GB/T 45605-2025Technical requirements for flashing traffic signals for urban roads (English PDF)

城市道路交通闪烁光信号技术要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 25, 2025

Implementation date

November 1, 2025

Scope

GB/T 45605-2025 is the English-translated version of 城市道路交通闪烁光信号技术要求.

GB/T 45605-2025 is the Chinese national standard covering the flashing warning light on an urban road, which is not a traffic light and gives no right of way — the single and combined types and the two intensity levels, the emission colour, the flicker characteristics including the pulse interval and the synchronous deviation between units of a combined signal, the optical performance, the automatic control, the environmental reliability, and the conditions under which such a signal may be set. First edition, with the terminology standard GB/T 45606-2025. Under the Ministry of Public Security. In force from 1 November 2025. Issued on 25 April 2025, it has been in force since 1 November 2025.

Document preview — GB/T 45605-2025

National Standard of the People's Republic of China

ICS: 93.080.30
Classification: R 80

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Categories1
5 General technical requirements2
5.1 Emission Color2
5.2 Flicker characteristics2
5.3 Optical performance2
5.4 Automatic control function of traffic flashing light signals3
5.5 Environmental reliability requirements for traffic flashing light signals3
6 Test Method3
6.1 Emission Color3
6.2 Flicker characteristics3
6.3 Optical performance3
6.4 Automatic control function test of traffic flashing light signal4
6.5 Environmental resistance reliability requirements test4
7 Settings4
7.1 General Provisions4
7.2 Setting conditions4
7.3 Traffic flashing light signal settings and selection5
Appendix A (Informative) Typical Road Environment Setting Examples6
References8

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is issued by the Ministry of Public Security of the People's Republic of China.

This document is under the jurisdiction of the National Technical Committee for Road Traffic Management Standardization (SAC/TC576).

This document was drafted by: Traffic Management Science Research Institute of the Ministry of Public Security, Fudan University, Southeast University, Wuxi Public Security Bureau, Nanjing Lantai Transportation FACILITIES LIMITED.

The main drafters of this document are: Ma Jingjie, Li Ya, Huang Lei, Fu Qiang, Sun Wei, Gu Jingang, Cao Ming, Liu Minghao, Wang Hao, Yin Mingjiang, Lin Yandan, Xu Haili.

Technical requirements for flashing light signals for urban road traffic

1 Scope

This document specifies the classification, general technical requirements, test methods and setting requirements for flashing light signals in urban road traffic.

This document is applicable to the design, testing and installation of traffic flashing light signals fixedly installed on urban roads, and fixedly installed on other roads.

Traffic flashing light signals are used for reference.

2 Normative references

GB/T 8417

GB 13954-2009

GB 14887-2011

3 Terms and definitions

The terms and definitions defined in GB 13954-2009 and the following apply to this document.

3.1

A light signal that is fixed on the road and emits a warning or road traffic information with a certain flashing frequency and color.

Note 1.Traffic flashing light signals do not belong to road traffic signals (road traffic lights, signs and markings).

Note 2.Traffic flashing light signals may be set up on the roadside or on the road surface.

Note 3.Fixed setting refers to setting after passing road safety assessment, not temporary setting.

3.2 pulseinterval

The time interval between adjacent pulses within one flash cycle.

3.3 Synchronous deviation timedifference

The time difference between the synchronous flashing of combined traffic flashing light signals under the same trigger signal conditions.

4 Categories

4.1 Traffic flashing light signals are classified into single-unit and combined types according to the number of signal devices.

The light signal is a light signal emitted by the light-emitting units of multiple signal devices in combination.

4.2 Traffic flashing light signals are divided into low intensity and high intensity levels according to the luminous intensity.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 8417

Editions of GB/T 45605

Edition	Title	Revision	Status
GB/T 45605-2025	Technical requirements for flashing traffic signals for urban roads	current edition	Current

This page sells the current edition, GB/T 45605-2025. Earlier editions are listed for reference only.

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