GB14886-2016
Specifications for road traffic signal setting and installation
道路交通信号灯设置与安装规范
GB 14886-2016 is a current mandatory Chinese national standard for Specifications for road traffic signal setting and installation. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Jul 1, 2017.
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
This standard specifies the requirements for the setting, combination forms, installation, and construction qualifications of road traffic signal lights in China. It is applicable to the installation of traffic signals at urban road intersections, highway intersections, road sections, and ramps. It serves as the primary compliance document for traffic engineering projects and municipal planning. Other venues may refer to this standard for their traffic signal installations.
Technical requirements
The standard outlines comprehensive requirements for traffic signal deployment. It defines the setting conditions based on intersection types, traffic volume (measured in Passenger Car Units or PCU), and accident history. For instance, specific thresholds for peak hour and continuous 8-hour traffic flows dictate the mandatory installation of signals. The standard also details signal light combinations, categorizing them into conventional and special groups to manage motor vehicles, non-motor vehicles, and pedestrians effectively. Engineers must ensure that the selected signal combination does not create right-of-way conflicts between different traffic flows. Regarding installation, the standard specifies the installation methods (e.g., cantilever, column, gantry), quantities, positions, and heights for various signal types. It mandates that signals must be clearly visible to drivers within a specific sight distance range, which varies by road design speed. Signal poles and structures must not intrude into the road clearance limits. The standard also references GB 14887 for the physical signal light specifications and GB/T 18226 for the anti-corrosion performance of steel components. Furthermore, the document sets requirements for cable laying, prohibiting underground cable joints and specifying burial depths and protective piping. It also mandates that design and construction must be carried out by entities with appropriate qualifications in construction and electrical work.
Testing methods
While primarily an installation specification, the standard references testing and evaluation procedures from companion standards. It requires signal lights to comply with the photometric and physical requirements of GB 14887. The anti-corrosion performance of metal poles and components must be evaluated according to the testing methods in GB/T 18226. The standard also outlines evaluation criteria for sight distance triangles and visibility angles to ensure drivers can observe the signals clearly.
FAQs
What products or projects are regulated under GB 14886-2016?
GB 14886-2016 regulates the setting and installation of road traffic signal lights, including motor vehicle signals, direction indication signals, non-motor vehicle signals, and pedestrian crossing signals at intersections, road sections, and ramps.
Are there any significant updates from the previous version, GB 14886-2006?
Yes, the 2016 version introduces general provisions for signal setting, modifies intersection type conditions, and adds requirements for yellow light duration (3s-5s) and flashing warning frequencies. It also restructures signal combinations into 2 conventional and 3 special forms, and adds specific requirements for ramps and T-intersections.
How does GB 14886-2016 relate to other Chinese standards?
This standard works in conjunction with GB 14887 (which specifies the physical signal light requirements) and GB/T 18226 (for steel component anti-corrosion). It also references GB 50647 for intersection planning and JTG D 20 for highway design.
The summary above provides a high-level overview of GB 14886-2016. To ensure complete compliance for your traffic engineering projects in the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 14886-2016 today to access all detailed parameters, combination tables, and installation diagrams.
Applicability hints
- Type
- Management
- CCS
- R87
- ICS
- 93.080.30
- Competent department
- Ministry of Public Security
- Technical committee
- Ministry of Public Security
Relationships
Replaces:GB 14886-2006