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GB/T 38779-2020Technical specification for road traffic safety of the tram (English PDF)

有轨电车道路通行安全技术规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 28, 2020

Implementation date

November 1, 2020

Scope

GB/T 38779-2020 is the English-translated version of 有轨电车道路通行安全技术规范.

GB/T 38779-2020 sets out how tramways that share the road network are to be organized and signalled.

Clause 1 states that the standard covers the traffic organization and channelization of trams on the road, the setting of traffic signals and safety facilities, requirements for traffic signal priority access control, the interactive interface specification for intersection signal equipment, and the assessment of access and safety benefits; it applies to the organization of trams running in dedicated lanes on the road, while trams mixed with motor vehicle traffic may follow it for reference.

Its contents list names clause 4 Traffic organization and traffic channelization, broken down into basic principles, intersection, section and platform, and clause 5 Traffic signal and safety facilities setting, which treats special signal lights for trams, traffic signs, traffic marking and traffic safety facilities separately.

Clause 6 covers traffic signal priority access control, including information collection and transmission, response mode, scheme setting, operating status monitoring records and control constraints, while clause 7 deals with the intersection signal equipment interface, its requirements and the interactive information exchanged, and clause 8 gives the evaluation indexes and the calculation methods for traffic efficiency and for safety benefit.

Five appendices follow: schematic diagrams of common traffic patterns at tram intersections, traffic sign styles and settings, tram signal light styles and settings (normative), traffic marking styles and settings, and a serial communication protocol between the signal controller of the tram intersection and the road traffic signal controller.

The body points to companion documents for detail, so that isolation facilities for dedicated tram lanes follow GB 50688 and the barrier-free facilities at tram entrance and exit passages follow GB 50763, while the terms used are those defined in GB/T 31418 and GB/T 50833.

The standard is proposed and administered by the Ministry of Public Security of the People's Republic of China, and the drafting bodies include the Ministry's Institute of Transportation Management Science together with tram operating companies in Suzhou and Shenzhen. It was issued on 28 April 2020 and has applied since 1 November 2020.

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Document preview — GB/T 38779-2020

National Standard of the People's Republic of China

ICS: 93.080.30
Classification: R 87

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

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Transportation Organization and Transportation Channelization
4.1 Basic principles
4.2 Intersection
4.3 Section
4.4 Platform
5 Traffic signal and safety facilities setting
5.1 Special signal lights for trams
5.2 Traffic signs
5.3 Traffic marking
5.4 Traffic safety facilities
6 Traffic signal priority access control
6.1 Basic Principle
6.2 Information collection and transmission
6.3 Response mode
6.4 Scheme setting
6.5 Operating status monitoring records
6.6 Control constraints
7 Intersection signal equipment interactive interface specification
7.1 Interface interface
7.2 Interface requirements
7.3 Interactive Information
8 Access and safety benefit assessment
8.1 Evaluation index
8.2 Calculation method of traffic efficiency assessment indicators
8.3 Calculation method of safety benefit evaluation index
8.4 Evaluation method
Appendix A (informative appendix) Schematic diagram of common traffic patterns at tram intersections
Appendix B (Informative Appendix) Traffic Sign Styles and Settings
Appendix C (Normative Appendix) Tram Signal Light Styles and Settings
Appendix D (Informative Appendix) Traffic Marking Styles and Settings
Appendix E (informative appendix) Serial communication protocol between the signal controller of the tram intersection and the road traffic signal controller
Reference

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the traffic organization and channelization of trams on the road, the setting of traffic signals and safety facilities, and the priority of traffic signals Requirements for access control, cross-point signal equipment interaction interface specifications, access and safety benefit evaluation, etc.

This standard is applicable to the organization of trams with dedicated lanes on the road, and the organization of trams mixed with motor vehicles can be referred to Follow the instructions.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this document. For the cited documents without date, the latest version (including all amendments) applies to this document.

GB 5768.2 Road traffic signs and markings Part 2: Road traffic signs

GB 5768.3 Road traffic signs and markings Part 3: Road traffic markings

GB 14886 Code for Installation and Installation of Road Traffic Signals

GB/T 31418 Terminology of road traffic signal control system

GB 50688 Code for design of urban road traffic facilities

GB 50763 Barrier-free design specification

GB/T 50833 Basic terminology standard for urban rail transit engineering

CJJ69 Technical Specification for Urban Pedestrian Overpass and Underpass

CJJ152 Design Specification for Urban Road Intersection

GA/T 527.1 Road traffic signal control method Part 1: General technical conditions

3 Terms and definitions

The terms and definitions defined in GB/T 31418 and GB/T 50833 apply to this document.

4 Traffic organization and traffic channelization

4.1 Basic principles

4.1.1 The traffic organization and traffic channelization along the tram should conform to the tram network design and road traffic design.

4.1.2 The tram lanes should be equipped with special lanes for trams. Isolation facilities should be set up for special lanes. In accordance with GB 50688.

4.1.3 The entrance and exit passages of trams shall be provided with barrier-free facilities in accordance with GB 50763.

4.2 Intersection

4.2.1 General requirements

4.2.1.1 The traffic organization and traffic channelization at the intersection should meet the requirements of tram traffic and meet the requirements of CJJ152.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 31 pages — is available in the English PDF.

Referenced standards

Normative references

CJJ 69

Cited by

GA/T 1743-2020Specifications for the information release interface of traffic signal controller

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