GB5768.6-2017
Road traffic signs and markings—Part 6: Highway-railway grade crossing
道路交通标志和标线 第6部分：铁路道口
GB 5768.6-2017 is a current mandatory Chinese national standard for Road traffic signs and markings—Part 6: Highway-railway grade crossing. It appears in the Auto compliance cluster with a product safety focus and has an implementation date of Feb 1, 2018.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
GB 5768.6-2017 specifies the setting requirements for road traffic signs and markings near highway-railway grade crossings. This standard applies to public highways, urban roads, and various other roads allowing public motor vehicle access. It is mandatory for all new and existing railway crossings on these routes. Other private or specialized motor vehicle passages may refer to this standard.
Technical requirements
This standard defines the general specifications and installation protocols for traffic control devices at railway crossings. The visual attributes of signs and markings, including color, shape, and dimensions, must align with the foundational criteria in GB 5768.2 and GB 5768.3. For multi-track railway intersections, a specific fork symbol must be installed above the crossing sign. The standard also details the layout of railway crossing markings, including specific dimensional adjustments for narrow lanes (≤3m width) and the mandatory installation of no-crossing lane dividers extending at least 30m from the stop line. For unmanned railway crossings, the standard mandates specific visual sight lines based on train speed limits to determine whether a yield or stop sign is required. It requires the placement of warning signs, speed limit signs (typically 30km/h), and a series of three diagonal slash symbols at 50m, 100m, and 150m upstream if pavement markings are absent. For manned railway crossings, similar sign placement rules apply, focusing on adequate advance warning. In special road conditions, such as curves, steep downhill segments, or overpasses near the crossing, repeated railway crossing signs must be installed with auxiliary distance plates to compensate for impaired driver visibility. Downstream hazards also require corresponding warning signs.
Testing methods
Instead of traditional laboratory testing, this standard utilizes geometric sight distance evaluation and spatial layout verification. Engineers must calculate the lateral sight distance based on the train's speed limit to ensure drivers can see approaching trains from 50m away. The standard also provides layout assessment procedures to verify the correct longitudinal placement of signs, markings, and speed limits.
FAQs
What types of roads are covered under GB 5768.6-2017?
It applies to the setting of road traffic signs and markings near highway-railway grade crossings on public roads, urban roads, and other roads allowing public motor vehicle access.
What are the main updates in GB 5768.6-2017 compared to the previous GB 5768-1999?
It introduced updated dimensional requirements for railway crossing markings (especially for lanes ≤3m wide), added comprehensive setting requirements for signs and markings, and included layout examples in its annex.
Is compliance with GB 5768.6-2017 mandatory for existing railway crossings?
Yes, all technical content in this part is mandatory. Existing facilities must be gradually updated to comply within their service lifespan.
The summary above provides a high-level overview of GB 5768.6-2017. To ensure complete compliance for your engineering projects or traffic safety products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 5768.6-2017 today to access all detailed parameters, layout diagrams, and installation procedures.
Applicability hints
- Type
- Safety
- CCS
- R80
- ICS
- 03.220.20
- Competent department
- Ministry of Transport
- Technical committee
- Ministry of Transport
Relationships
Partially replaces:GB 5768-1999