GA/T 1567-2019Guidelines for setting traffic separate railing on urban road (English PDF)

4.1 General provisions

4.1.1 The setting of traffic barriers should meet the needs of road traffic organizations.

4.1.2 The provision of motor vehicle barriers and non-motor barriers should match the corresponding road traffic markings, and should not match the road traffic signs, markings, Traffic lights and other traffic management facilities conflict.

4.1.3 The installation of traffic barriers should be firm, durable, and eye-catching to facilitate maintenance.

4.1.4 The traffic barriers should not be set up to facilitate pedestrians climbing, crossing, and crossing.

4.1.5 The installation of traffic barriers should not hinder the line of sight for safe driving, advertisements should not be installed on traffic barriers, and publicity signs should not be installed.

4.1.6 Set up motor vehicle barriers and non-motor barriers. Reflective warning devices should be installed at the end and the middle section in the direction of the vehicle, and the middle section should be installed.

The distance between reflective warning devices should be less than or equal to 6m. It is advisable to install reflective warning posts or illuminated warning lights at the ends of motor vehicle barriers and non-motor barriers for facilities such as display columns, the retro-reflective performance of reflective warning columns shall comply with GB/T 18833, and illuminated warning columns shall meet the requirements of GA/T 1246. Set up Figures are shown in Figure A.1 and Figure A.2.

4.1.7 The structure style of the traffic barriers on the same section should be kept uniform.

4.2 Motor vehicle barrier

4.2.1 In the case of urban two-way six-lane trunk roads and above, if there is no central separation zone, a central separation fence shall be provided; other trunk roads have no central separation zone when this happens, a central fence should be provided.

4.2.2 When the urban two-way four-lane and above secondary roads have no central separation zone, or there are elevated roads, large bridge pier columns in the roads, and no other Sections of other isolation measures should be provided with a central fence.

4.2.3 The connecting section of bridges, viaducts, interchanges, and tunnels that pass in both directions with ground roads should be provided with a central barrier.

4.2.4 On the roads that have been provided with green partitions or concrete separation pier in the middle of the road, when pedestrians and non-motorized vehicles cross the motor when the lanes are serious, a central separation fence should be set up on the central divider.

4.2.5 The net height of the central isolation fence should not be less than 1.1m, and the height of the lower edge from the ground should not be greater than 0.25m.

4.2.6 When encountering a flat intersection, a crosswalk, a left turn or a U-turn opening of a vehicle, the central partition should be gradually reduced by means of a gradual gradient, etc.

Clear height from the fence, the height of the isolation fence at the end should not exceed 0.7m, the length of the end should not be less than 10m, and the length of the gradient section should not be less than 15m. Assume See Figure A.3 for layout.

4.2.7 The clear width of the central isolation fence placed at the position of the double yellow solid line shall not be less than 0.1m from the edge of the base to the inner edge of the double yellow solid line.

Refer to Figure A.4 for the setup diagram.

4.2.8 On urban roads, it is forbidden to collect and interweave sections of motor vehicles, or sections of dedicated lanes and ordinary lanes may be separated by same-direction lanes.

Off the bar. The net height of the barriers installed in the same lane should not be less than 0.6m.

4.2.9 Two-lane and two-lane urban roads should not be provided with a central fence.

4.3 Machine non-isolated fence

4.3.1 The sections of motor vehicle lanes and non-motor vehicle lanes that share a common section and the width of non-motor vehicle lanes is greater than or equal to 1.5m.

When the flow of motor vehicles is large, a non-motorized fence should be set up. If the proportion of tricycles in non-motor vehicles is high, the width of non-motor vehicle lanes can be moderately width.

4.3.2 The motor vehicle lanes and non-motor vehicle lanes are co-planar sections. Non-motor vehicle lanes passing in opposite directions in a single vehicle lane should be provided with non-motorized barriers.

4.3.3 The motor vehicle lanes and non-motor vehicle lanes are co-planar sections. It is advisable to set up machine-non-isolated fences within the plane intersection.

4.3.4 In the sections that guarantee the passage of non-motorized vehicles, a non-motorized barrier should be set up.

4.3.5 The net height of the non-isolated fence installation shall not be less than 0.4m.

4.4 Pedestrian fence

4.4.1 Stations, docks, commercial centers, large public places, entrances and exits, pedestrian bridges, pedestrian stairways, etc.

On the side, a pedestrian barrier should be set up along the curb. Set up on sections of non-fully closed sections near pedestrian bridges and underground stairway exits without bus stops for pedestrian barriers, the length should be greater than.200m or at the pedestrian crossing line in front of and behind the stairway crossing.

4.4.2 The side of the sidewalk and other road sections that need to prevent pedestrians from entering the roadway should be along the curb on both sides of the crosswalk Pedestrian barriers should be installed on the stone. The length should be 30 m to 120 m, and the conditions should be in accordance with GB 50647.

4.4.3 When the shrubs with separation function have been planted on the sections where pedestrian barriers need to be installed, pedestrian barriers may not be provided.

4.4.4 The net height of the pedestrian barrier should not be less than 0.9m.

Appendix A

(Informative appendix) Motor vehicle barrier and non-motor barrier set A.1 Separate setting of reflective warning devices for motor vehicle barriers and non-motorized barriers, and reflective and luminous warning columns at the ends See Figure A.1 for separation settings of reflective warning devices for motor vehicles and non-motorized barriers, as well as reflective and luminous warning posts at the ends.

Figure A.1 Separate setup of reflective warning device for motor vehicle barrier and non-motor barrier

A.2 Combined setting of reflective warning devices for motor vehicle barriers and non-motorized barriers, and reflective and luminous warning columns at the ends See Figure A.2 for the combined setting of the reflective warning device for motor vehicle barriers and non-motorized barriers, and the reflective and luminous warning posts at the ends.

Figure A.2 Schematic diagram of combined installation of reflective warning devices for motor vehicle barriers and non-motorized barriers, and terminal reflective and luminous warning columns

A.3 Setting the length of the oblique gradient section of the central isolation bar and the head clear height See Figure A.3 for the length of the oblique gradient section of the central isolation bar and the clear height of the tip.

Figure A.3 Illustration of the setting of the length of the oblique gradient section of the central isolation bar and the clear height of the tip

A.4 Set the clear width of the edge of the base of the central fence and the inner edge of the double yellow solid line See Figure A.4 for the setting of the clear width of the edge of the base of the central fence and the inside edge of the double yellow solid line.

Figure A.4 Schematic diagram of setting the clear width of the edge of the base of the central fence and the inner edge of the double yellow solid line

references

[1] GB 50688-2011 Code for Design of Urban Road Traffic Facilities [2] GB J 124-1998 Standard for Terminology of Road Engineering [3] CECS 176-2005 Technical Specification for Application of Polypropylene Composite Plastic Isolation Fence [4] CJJ 37-2012 Design Code for Urban Road Engineering [5] JT/T 1033-2016 traffic divider [6] DB 3502/Z 029.6-2015 Xiamen Urban Road Traffic Management Facilities Setup Specification Part 6. Traffic Safety Facilities [7] Standards for setting up urban road traffic management facilities in Suzhou City (Suzhou Transportation Commission [2014] No. 1) [8] Guidelines for the Planning and Design of Urban Walking and Bicycle Transportation Systems (Jiancheng [2013] No. 192) [9] Specifications for the installation of sidewalk facilities on urban roads (Guangzhou Municipal Bureau of Quality and Technical Supervision, 2015)