GA/T 1548-2019Guidelines for setting of active light-emitting traffic signs on urban roads (English PDF)

4.1 General provisions

4.1.1 In the case of low visibility and poor visual recognition, active illuminated traffic signs (hereinafter referred to as "active illuminated signs" "). The setting of the active luminous sign shall comply with the provisions of GB 5768.

4.1.2 Active luminous signs should be coordinated with surrounding traffic signals to avoid mutual obstruction, inconsistent information, and visual illusions.

problem.

4.1.3 It is not advisable to set active illuminated signs and retro-reflective traffic signs at the same location.

4.1.4 Active light-emitting signs shall have a retro-reflective function when power is off, and retro-reflective performance shall meet the requirements of GB/T 18833.

4.1.5 The active luminous sign of the grid power supply shall be provided with ground protection.

4.1.6 The mounting fasteners of the active luminous signs shall have anti-theft devices.

4.1.7 The setting process of the active luminous sign shall comply with the provisions of GB 51038.

4.1.8 When the prohibition signs and indication signs are set as active light-emitting signs, they shall be displayed using a full-transmissive panel.

4.1.9 When the guide sign is set as an active luminous sign, it should be displayed with a translucent panel.

4.1.10 When the warning signs and working area signs are set as active light-emitting signs, full-transparent panel display or dot matrix display should be used.

4.2 Setting conditions

4.2.1 Active lighting signs should be set in the following locations.

a) the frequent occurrence of traffic accidents;

b) roads with hidden dangers such as frequent rain, fog and snow or poor visibility of signs;

c) Schools, hospitals, nursing homes and other surrounding roads without lighting facilities or poor lighting conditions at night;

d) construction areas and roads and railway crossings without lighting facilities or poor lighting conditions at night;

e) Outside road curves and ramp ramps prone to traffic accidents, as well as road isolation facilities, canalized island ends, etc.

To set related flags;

4.2.2 Active glow signs should be set in the following locations.

a) tunnels, underground roads, etc .;

b) Variable lanes, tidal lanes, dedicated bus lanes, multi-passenger lanes, etc. need to be provided with relevant signs;

c) Expressway exits, intersections of major and minor roads, etc. need to improve visibility of guidance information;

d) The roads and curves with a speed limit of 60km/h and above have crosswalks that are not easily detected by the driver.

Sign

e) All kinds of bridges, tunnels and other important traffic structures need to set prohibition signs such as height restriction, quality restriction and axle load restriction;

f) Set up traffic signs related to the divergence and confluence of urban expressways;

g) Intersections or road sections with poor line of sight or poor night lighting conditions;

h) for transmitting traffic information to pedestrians and non-motorized cyclists;

i) the sign is placed side by side with the street light and the street lighting affects the visual recognition of the sign;

j) Removable traffic signs are required for temporary traffic organization and traffic control at night.

4.3 Display requirements

4.3.1 The dot matrix display of active luminous signs shall be outlined or filled with information content such as the shape, graphics and characters of the signs. Dot Matrix Display Master the glowing lines of moving glowing signs shall be continuous.

4.3.2 The color, shape, characters and graphics of the panel display of the active luminous sign shall meet the requirements of GB 5768.

4.3.3 The light-emitting unit displaying the active light-emitting sign on the panel shall be kept intact.

4.4 Luminous requirements

4.4.1 Luminous form

4.4.1.1 The luminous forms of active luminous signs can be divided into flashing and constant light.

4.4.1.2 The illuminated form of the panel display active luminous sign shall be always on.

4.4.1.3 When the active light-emitting sign adopts flashing light-emitting form, the flashing frequency and duty cycle shall comply with the requirements of GB/T 31446.

4.4.1.4 The active luminous sign shall automatically adjust the luminous brightness according to the ambient illumination.

4.4.2 Luminous period

4.4.2.1 The active light-emitting sign of the grid power supply should adjust the opening and closing time according to the environmental illumination.

4.4.2.2 Active light-emitting signs powered by power storage devices should be designed according to local climate conditions, traffic characteristics, and traffic management needs.

Set the off time.

5.1 Construction

5.1.1 General provisions

5.1.1.1 The installation of active luminous signs shall comply with the provisions of GB 51038.

5.1.1.2 The bars and foundations of active light-emitting signs shall be professionally designed and verified to meet the requirements of active light-emitting signs (hereinafter referred to as "standards" "Sports body") safety requirements such as power supply, load and lightning protection.

5.1.1.3 The threading holes of the active luminous sign rods shall be treated with waterproof, rust and corrosion protection.

5.1.1.4 Concealed works such as foundations and pipelines shall meet the requirements of GA/T 652.

5.1.2 Installation and commissioning

5.1.2.1 Active light-emitting signs powered by solar energy shall be installed at a position with a good sunlight angle.

5.1.2.2 The power supply lines shall be provided with insulation protection and shall not be exposed.

5.1.2.3 The routing of power supply lines shall meet the following requirements.

a) Rod wiring. ensure that the wiring runs from the pole, and do insulation protection;

b) Pipeline routing. the line should be routed from the embedded pipeline;

c) Adhesive wiring. It shall be ensured that the line protection pipe is fixed on the attachment with a fixing card.

5.1.2.4 The marking body, the outlet tube of the control cabinet and the marking body are well connected and sealed, and there is no foreign body in the marking body. Attachment to the rod when controlling the chassis, the height of the bottom edge of the chassis from the ground should not be less than 2.5m.

5.1.2.5 The electrical safety performance of the grid-powered active light-emitting sign shall meet the requirements of GB/T 31446.

5.2 Acceptance

5.2.1 The supplier of the active luminous sign shall provide a product test report issued by a qualified third-party inspection agency.

5.2.2 The acceptance process of active luminous signs shall comply with the requirements of GA/T 870.

5.2.3 The static visual recognition distance and dynamic visual recognition distance of the active luminous sign shall meet the design requirements. Static visual recognition distance and dynamic visual recognition the distance and its test method shall meet the requirements of GB/T 31446.

5.2.4 The power storage equipment's power supply equipment shall have low temperature, high temperature, acid and alkali, corrosion and other test reports.

5.2.5 The type, installation position, installation requirements, component specifications and basic connections of the active light-emitting sign shall meet the design requirements.

5.2.6 The surface of the active luminous sign shall be flat and intact without wrinkles, cracks, defects or unevenness.

5.2.7 At night, the background color and characters of the active luminous sign should be clear and bright, the color should be uniform, and there should be no streaks and shadows in the light emitting area.

The phenomenon of uneven light and dark and affecting reading.

5.2.8 The anticorrosive coating of all steel components shall be uniform in thickness and consistent in color. There shall be no sagging, nodules, or extra clumps.

Defects such as missing plating.

5.3 Inspection

5.3.1 Inspection methods include routine inspections and special inspections.

5.3.2 Routine inspections shall be carried out regularly, and the inspection contents, including the color, shape, characters, graphics, etc. of the logo, shall comply with GB 5768.

Requirements, whether the marking body, uprights, connectors, foundations, etc. are intact, and whether the marking body and rods have firm nameplate marks.

5.3.3 When encountering natural disasters, traffic accidents or other abnormal situations, special inspections should be carried out in a timely manner. Special inspection the content includes whether the working environment of the active light-emitting sign is normal, and the performance status includes whether the surface light uniformity, brightness, contrast, etc. are consistent.

Meet design requirements.

5.4 Maintenance

5.4.1 The maintenance content includes cleaning and maintenance of the marking rods, marking bodies, components of power storage devices and their connection lines.

change.

5.4.2 When the administrator or user of the active luminous sign thinks that the luminous unit on the sign layout is attenuated, the brightness is uneven, and the recognition is affected.

When there is any doubt about reading, etc., the professional testing agency will detect that if one of the following situations occurs, the active light-emitting sign lighting unit should be replaced.

a) The luminous intensity of the light-emitting unit decays to 70% of the luminous intensity requirements of the product test report;

b) The unevenness of the brightness of the surface of the active luminous sign is greater than 20%;

c) The chromaticity performance or visual distance of the light-emitting unit cannot meet the design requirements.

5.4.3 If the power storage device is used for power supply, the power storage equipment that cannot work normally should be replaced in time.