GB/T 47464-2026Specification for the installation of urban road traffic information monitoring and display equipment (English PDF)

6.1.1 Expressway

6.1.1.1 One monitoring station should be set up at each entrance/exit ramp where vehicles enter or exit the main line, with the monitoring range covering the entire acceleration and deceleration lanes and adjacent lanes. Lane.

6.1.1.2 One monitoring station should be set up at each merging and diverging point of the main line at the interchange, with the monitoring range covering the entire acceleration and deceleration lanes and adjacent lanes. Lane.

6.1.1.3 At appropriate locations before and after entering (exiting) the tunnel entrance, a monitoring station should be set up to cover the road area before and after the tunnel entrance.

6.1.1.4 The spacing between road sections inside the tunnel should not exceed 150m, and should be able to continuously monitor the vehicle operation inside the tunnel throughout the entire process.

6.1.1.5 One monitoring station should be set up for bridges, and one station should be set up at each end for extra-large bridges. The monitoring range should be continuously covered for the bridge deck and road sections.

6.1.1.6 It is advisable to set up one monitoring station every 1000m to.2000m along the main line section, which should be able to continuously monitor the vehicle operation status of the main line section throughout the entire process.

6.1.2 General Roads

6.1.2.1 At least one monitoring station should be set up at each signal-controlled intersection, with the monitoring range covering the entire intersection.

6.1.2.2 At grade-separated intersections of main roads and secondary roads without traffic signals, and at grade-separated intersections of secondary roads without traffic signals, one signal-controlled intersection should be set up for monitoring. The field of view covers the entire intersection.

6.1.2.3 For road sections where pedestrian crossing lights have been installed, one pedestrian crossing signal should be installed at each pedestrian crossing, with the monitoring range covering the entire pedestrian crossing area.

6.1.2.4 At level crossings where secondary arterial roads intersect with local roads without traffic signals, and at level crossings where local roads intersect with each other without traffic signals, one signal-controlled intersection should be established, with a monitoring range of The enclosure covers the entire intersection.

6.1.2.5 Where there are no pedestrian crossing traffic lights, one should be installed at each pedestrian crossing, with the monitoring range covering the entire pedestrian crossing area.

6.1.2.6 Where the distance between adjacent intersections on a main road is greater than 1000m and no pedestrian crossing is provided at the intersection, a pedestrian crossing should preferably be provided in the middle of the intersection. The visual range covers the two-way lane section of the main road.

6.1.3 Special points and segments

6.1.3.1 One surveillance camera should be installed on each road at the entrance/exit of traffic hotspots such as schools, hospitals, commercial districts, and scenic spots, with the surveillance range covering the hotspot area. Area entrances and exits and surrounding roads.

6.1.3.2 One monitoring station should be set up at each end of a major bridge on a general road, and the monitoring range should be continuously covered on the bridge deck.

6.1.3.3 On general roads, one monitoring station should be set up at an appropriate location before (or after) entering the tunnel entrance, with the monitoring range covering the road before (or after) the tunnel entrance. Road area.

6.1.3.4 The spacing between road sections inside medium-length, long, and extra-long tunnels on general roads should not exceed 150m, and should be able to continuously monitor vehicles inside the tunnel throughout the entire process. Vehicle operation status.

6.1.3.5 One monitoring station should be set up for each accident-prone road section and each road section with high impact from severe weather, with the monitoring range covering both accident-prone road sections and areas affected by severe weather. The road area where the high-impact road section is located.

6.1.3.6 Interchanges, intersections of main roads at grade, and roads surrounding traffic hotspots such as schools, hospitals, commercial areas, and scenic spots should be equipped with [specific road safety measures]. High-altitude monitoring equipment is installed to achieve macroscopic monitoring of traffic conditions over a wide area.

6.2.1 Expressway

6.2.1.1 One starting point and one ending point should be set up respectively, and the monitoring range should cover the cross-section of the two-way lanes.

6.2.1.2 One monitoring station should be set up for extra-large bridges, with the monitoring range covering the cross-section of both lanes.

6.2.1.3 A monitoring station should be set up before entering the tunnel entrance, with the monitoring range covering the cross-section of one-way lanes.

6.2.1.4 It is advisable to set up one monitoring point at each entrance and exit, with the monitoring range covering the cross-section of the one-way lane.

6.2.1.5 At interchanges, one monitoring station should be set up upstream of the diverging nose and downstream of the merging nose for each direction of traffic, with the monitoring range covering the cross-section of one-way lanes.

6.2.2 General Roads

6.2.2.1 At each approach lane of a signal-controlled intersection where a main road intersects with another main road, or a main road intersects with a secondary road, a monitoring station should be set up with a monitoring range of The entrance lane is surrounded and covered.

6.2.2.2 At other intersections where roads intersect, one signal-controlled intersection should be set up, with the monitoring range covering the approach lanes.

6.3 Meteorological and Environmental Monitoring Equipment

6.3.1 Visibility monitoring equipment and road icing monitoring equipment should be installed on bridges.

6.3.2 Visibility monitoring equipment should be installed on road sections near water or lakes.

6.3.3 Water accumulation monitoring equipment should be installed in low-lying areas, culverts, and other road sections.

6.3.4 Road icing monitoring equipment should be installed on road sections that are highly affected by rain, snow, low temperatures, and freezing.

6.4.1 Expressway

6.4.1.1 One monitoring station should be set up at the entrance (exit) ramp where vehicles enter (exit) the main line, with the monitoring range covering the entire acceleration and deceleration lanes and adjacent lanes.

6.4.1.2 Monitoring should be conducted at appropriate locations before (or after) the tunnel entrance, with the monitoring range covering the road area before (or after) the tunnel entrance. Additional monitoring points should be added to the inner road sections as needed for traffic management, with the monitoring range covering all lanes in the cross section inside the tunnel.

6.4.1.3 It is advisable to set up one monitoring point for the merging and diverging points of the main line at the interchange, and the monitoring range should cover the entire diverging and merging area.

6.4.1.4 It is advisable to set up one monitoring station at each end of a super-large bridge, with the monitoring range covering all lanes going up and down the bridge.

6.4.2 Special Points and Segments

6.4.2.1 One monitoring station should be set up for frequently congested road sections, with the monitoring range covering the cross-section of one-way lanes.

6.4.2.2 One monitoring station should be set up at accident-prone road sections, with the monitoring range covering the cross-section of one-way lanes.

6.4.2.3 On general roads, a monitoring station should be set up at an appropriate location before entering the tunnel entrance, with the monitoring range covering the cross-section of the one-way lane in front of the tunnel entrance.

6.5.1 Expressway

6.5.1.1 One monitoring station should be set up for each entrance and exit ramp, with the monitoring range covering all lanes of the ramp.

6.5.1.2 One starting point and one ending point should be set up respectively, and the monitoring range should cover all lanes in both directions of the road.

6.5.1.3 It is advisable to set up one monitoring station every 5000m along the main road section, with the monitoring range covering all lanes in both directions of the road.

6.5.2 Special Points and Segments

6.5.2.1 One monitoring station should be set up at the entrance and exit of the main road in the urban built-up area, with the monitoring range covering all lanes in both directions of the road.

6.5.2.2 A monitoring station should be set up at the junction of the highway toll plaza and the urban road, with the monitoring range covering all lanes in both directions of the road.

6.5.2.3 One monitoring point should be set up at the entrance and exit of the urban built-up area of the secondary trunk road, and the monitoring range should cover all lanes in both directions of the road.

7.1 Traffic Condition Display Equipment

7.1.1 One such point should be set up upstream of the interchange divergence point of the expressway and the entrance point of the main road in the urban built-up area.

7.1.2 Business districts, scenic spots, train stations, airports, bus stations, ports, and other traffic hotspots, as well as other roads requiring traffic management, should be divided into... Don't set it up in one place.

7.2 Access guidance display device

7.2.1 At intersections where left turns are controlled by using a bypass lane, a diversion guide should be set up at the diversion point.

7.2.2 At intersections with left-turn (straight, combined) waiting areas, one such waiting area should preferably be located at the exit point corresponding to the direction of the entrance.

7.2.3 For green wave traffic routes, one green wave lane should be set up at each intersection or on the road section between adjacent intersections.

7.2.4 One road should be set up for each important section of the road upstream of major bridges, long tunnels, and extra-long tunnels.

7.2.5 At intersections without signal control and with poor visibility, one signal control point should be set up on the road section upstream of the stop line at the entrance of the secondary arterial road or branch road.

7.3 Parking guidance display equipment

7.3.1 A parking lot (garage) entrance shall be provided with a sign.

7.3.2 Parking lots (garages) should be set up on adjacent road sections and surrounding roads according to management needs.

8.2 Survey

8.2.1 For newly built, reconstructed, or expanded roads, the scope of the survey area should be clearly defined according to the project construction objectives. The main contents of the survey include the road and its surrounding areas. The information includes the condition of the facilities, such as parking facilities, predicted traffic flow, road traffic conditions, supporting power supply and communication facilities, and the needs of the construction unit.

8.2.2 For projects involving the upgrading and reconstruction of existing roads, the scope of the survey area should be clearly defined based on the project's construction objectives. The main contents of the survey include... Road and ancillary facilities conditions, parking facilities, traffic operation characteristics, traffic accidents and other road traffic conditions, existing equipment types and layout, power supply, Information on the status of communication infrastructure and the needs of the construction unit.

8.3 Site Survey

8.3.1 For newly built, reconstructed, or expanded roads, the main contents of the on-site survey should include the road geometry at the proposed location, communication resources, and power supply. Conditions, underground pipeline conditions, road environment conditions, etc.

8.3.2 For upgrades and renovations of existing roads, the main contents of the on-site survey should include the road geometry at the proposed location, the location of the installation, and other relevant information. Information on nearby traffic signs, traffic lights, and other traffic management facilities; existing equipment near the installation location; communication resources; and power supply. Conditions such as underground pipelines and road environment.

8.4 Research Report Preparation The research report uses text and charts to describe all the contents of sections

8.5 Design Preliminary design technical solutions should be prepared and preliminary design drawings and construction drawings should be produced in accordance with relevant national and local laws and regulations, research reports, etc. Design drawings that list the names, quantities, and main configurations of the main equipment and materials.

8.6 Construction Construction bidding documents should be prepared in accordance with relevant national, local, and industry regulations and design documents. Contracts should be awarded to the successful bidder, and contracts should be processed accordingly. With the determined number of equipment, construction, equipment installation and commissioning shall be carried out in accordance with the construction drawings and construction specifications.

8.7 Trial Operation After the project has been successfully commissioned and is operating stably, a preliminary acceptance test should be conducted. Following successful preliminary acceptance, a trial run should be conducted for no less than one month. It should ideally last more than 6 months. During the trial operation period, records of the trial operation should be kept and a trial operation report should be prepared.

8.8 Acceptance Acceptance documents should be prepared, and an acceptance committee should be established. The acceptance committee should comprehensively review the results of document review, construction acceptance, and technical acceptance. Make an acceptance conclusion.

9.Verification Methods Experts can be organized to review and evaluate the preliminary design technical scheme and other relevant documents for the installation of road traffic information monitoring and display equipment. Compliance with the requirements set in Chapters 6 and

7.After project acceptance, the effectiveness of the setup can be evaluated through expert assessment, third-party testing, or other methods. Evaluate and verify compliance with the requirements set in Chapters 6 and 7.