Overview
GB Road Studs are standardized traffic safety devices mandated by Chinese national standards (GB/T 24718-2009). They are designed to provide clear visual guidance for drivers, especially under low-light conditions. These studs are typically installed flush with the road surface and incorporate retroreflective lenses or prismatic sheets to redirect headlight beams back to drivers. Widely adopted in highways, urban expressways, and tunnels, GB Road Studs play a critical role in reducing lane-departure accidents. Their use extends to pedestrian crossings, roundabouts, and airport runways, where precise lane demarcation is essential.
Structure and Working Principle
A standard GB Road Stud consists of a base plate, reflective housing, and adhesive/sealing components. The base is commonly made of aluminum alloy or engineered plastic for durability, while the reflective element uses glass beads or microprisms to achieve high-intensity retroreflection (≥400 mcd/lx/m²). The working principle relies on optical retroreflection: when vehicle headlights hit the stud, the embedded lenses reflect light back to the driver’s eyes. Advanced designs include solar-powered LED variants for enhanced visibility in extreme weather. The studs are engineered to withstand repeated tire impacts (up to 10 tons) without deformation.
Key Features
Compliance with GB/T 24718-2009 ensures uniform performance metrics, including reflectivity, compression resistance, and weatherproofing. High-quality studs feature anodized aluminum bases to resist corrosion from de-icing salts and UV-resistant polycarbonate lenses to prevent yellowing. Anti-skid surfaces (Ra ≥65 μm) improve tire grip, while modular designs allow easy lens replacement. Some variants incorporate dual-color reflectors (e.g., red/white for lane edges) or sequential patterns to guide merging traffic. Temperature tolerance ranges from -40°C to 80°C, suitable for most climatic zones in China.
Application Areas
Primary applications include highway centerlines and edge markings, where they reduce crossover accidents by up to 30%. In urban settings, they delineate bus lanes, bicycle paths, and pedestrian crossings. Airports use heat-resistant ceramic studs on runways, while ports employ heavy-duty models for container yard markings. Specialized variants include: 1) Solar-powered studs for remote areas without street lighting, 2) Pressure-sensitive studs that illuminate when vehicles pass, and 3) Magnetic studs for automated lane-keeping systems in smart highways. Municipalities often specify stud color (white/yellow/red/blue) based on traffic regulations.
Maintenance and Precautions
Routine maintenance involves cleaning reflective surfaces with mild detergent to maintain reflectivity. Damaged studs should be replaced promptly to avoid loose components causing tire punctures. Installation requires epoxy adhesives or mechanical anchors, with curing time (typically 24 hours) observed before opening to traffic. Avoid low-cost studs with inferior adhesives that may detach in heavy rain. Winter maintenance should use rubber-blade snowplows to prevent stud damage. For B2B buyers, verify supplier certifications (e.g., ISO 9001, road safety product licenses) and request third-party test reports for reflectivity and impact resistance.
B2B Procurement Guide
Bulk procurement should prioritize GB/T 24718-2009 compliance, with optional CE or EN 1463-1 certification for export markets. Key evaluation criteria include: 1) Reflectivity class (Class I ≥400 mcd/lx/m² for highways), 2) Base material thickness (≥3mm for aluminum alloy), and 3) Warranty period (typically 2–5 years). Suppliers like 3M China, Zhejiang Jinghua Traffic Facilities, and Yangzhou Kasi Traffic Facilities offer volume discounts for orders exceeding 10,000 units. MOQs usually start at 500–1,000 studs per model/color. Lead times vary from 15 days (stock items) to 45 days (custom colors/sizes). Consider FOB Ningbo/Shanghai pricing for export scenarios.
Related Manufacturers
- 主营：波形护栏、太阳能道盯、隧道反光环、全铝道钉、水泥桩、滚筒护栏、反光膜、玻璃钢柱帽、轮廓标、光伏螺栓、钢管警示桩、桥梁护栏、防眩板、防撞垫、伸缩护栏
- 主营：传感器、电磁阀、保护器、塑料道钉、地磅、电动脚手架、装载机电子秤、机械抓手、砌筑升降平台、光伏板升降机、内撑吊具、混凝土振动棒、打标机、研磨机、裁切机、平移门电机、超市防盗门、磨片磨头、滑移机、消防机器人、农业打药机、履带底盘、消防器材
- 主营：合页、门轴、高强度螺栓、钢结构螺栓、法兰螺栓、内六角扳手、圆螺母、光伏螺栓、铆钉、销轴、螺母、不锈钢螺栓、不锈钢螺母、活节螺栓、预埋板、光伏配件、垫圈、不锈钢内六角螺栓、膨胀螺栓、煤矿螺母、地脚螺栓
- 主营：减速带、挡车器、太阳能爆闪灯、道钉、太阳能保通机器人、防撞桶、水马围挡、挡水板、太阳能警示灯、测速仪、红绿灯、钢管、雾灯、车位锁
- 主营：吊扇钩、保险扣、刮板机、国标q-7、支撑架、球形垫、钢结构、扣螺栓、35u型钢、干挂件、空心墙、元宝丝、草帽垫、紧固件、管夹u卡、k板螺丝、t帽螺母、焊接挂件、电力螺栓、非标螺丝、钢管扣件、装饰螺母、拉爆膨胀、高铁螺栓、吊扇挂钩
- 主营：鱼尾板、道夹板、压轨器、道钉、钢轨压板、橡胶垫板、钢轨扣板、激光切割、钢轨连接板、轨道连接板、轨道压板、铁路垫板、轨道垫板、鱼尾螺栓、蚂蟥钉、轨距拉杆、固轨器、轨道配件、GDGL压板、钢轨配件、压板、弹条
- 主营：防眩板、护栏、防撞垫、国标单面塑料道钉、轮廓标、支架
- 主营：护角条、车位锁、斜坡垫、玻璃道钉、塑料道钉、钢结构、护墙角、pvc塑料、减速带、遥控锁、车轮锁、警戒线、轮胎锁、挡车器、广角镜、反光路锥、塑料铁马、防撞护角、红白警示、塑料路锥、导向警示、液压路桩、交通护栏、方形路锥、道口路桩
- 主营：矿用铁路道钉、防火密闭门
- 主营：减速带、橡胶减速带、瓦斯钉、全铝道钉、爆闪灯、仿真警车、可移动红绿灯、警示柱、轮廓标、市政护栏、凸面镜、箭头灯、高水马、黄闪红慢、防撞垫、膨胀螺丝、警示灯、减速带钉、防撞桶、隔离墩、警戒线、标志牌、广角镜、草坪护栏、橡胶护角、防眩板
- 主营：测速仪、减速带、水马、全铝道钉、围挡、钢管挡车器、太阳能系列
- 主营：全铝道钉、橡胶水马、实心限速带、橡塑缓冲带
- 主营：转角镜、车位锁、球面镜、全铝道钉、限速板、程塑料、隔离椎、警示牌、红慢灯、三角垫、减速块、锥锥筒、保护膜、标志牌、摄像头、防淹板、反光膜、减速垫、半球镜、减速垄、警示车、马施工、注水桶、雾区灯、爆闪灯、反光珠
- 主营：密闭罐、照明灯、捣固机、山东道钉厂家、电话机、潜水电泵、金属顶梁、隔爆水槽、铰接顶梁、加固材料、尼龙柱帽、无压风门、隔爆水袋、气动绞车、电暖风机、防水密闭门、激光测距仪、道路融雪剂、管道取样机、液压支柱配、固定式矿车、支柱三用阀、轨道连接板、顶板离层仪、树脂锚固剂、液压复轨器
- 主营：橡胶垫板、加长橡胶垫板、复合橡胶垫板、道钉、螺旋道钉、螺纹道钉、轨距挡板、压板总成、压轨器、轨距拉杆、岔枕螺栓、铁垫板、挡板座、螺母、绝缘轨距拉杆、弹条、铁路配件、工矿配件、轨道配件、钢轨配件