Low Bridge Ahead Sign – Diagram 530A | Permanent UK Traffic Sign

⚠️ Low Bridge Ahead Sign – Diagram 530A | Permanent UK Traffic Sign

The Low Bridge Ahead Sign (Diagram 530A) is an official UK road warning sign used to alert drivers of an upcoming overhead restriction, such as a low bridge, tunnel, or other height-limited structure. This red-bordered triangular sign displays the maximum headroom clearance of 14′-6” (4.4m), ensuring that high-sided vehicles, lorries, and buses take necessary precautions to avoid collisions.

🚛 Where is the Low Bridge Ahead Sign Used?

This permanent UK traffic sign is strategically placed in areas where an overhead clearance restriction applies, including:

• Low bridges, ensuring HGVs, double-decker buses, and high-sided vehicles are aware
• Tunnels and underpasses, where height restrictions are critical
• Multi-storey car park entrances, where large vehicles must check clearance
• Industrial estates and warehouse areas, where lorries frequently operate
• Railway bridge crossings, where bridges have lower than standard height clearance
• Narrow urban roads, where older infrastructure may have reduced clearance

By providing an early warning, the Low Bridge Ahead Sign (Diagram 530A) helps prevent vehicle damage, accidents, and traffic disruptions caused by vehicles exceeding the height limit.

🔴 Enhancing Road Safety with Clear Warnings

The Low Bridge Ahead Sign – Diagram 530A plays a crucial role in UK road safety:

✅ Warns high-sided vehicles about upcoming low clearance hazards
✅ Prevents bridge strikes, which can cause severe damage and traffic congestion
✅ Encourages alternative route planning for vehicles exceeding the height limit
✅ Ensures compliance with TSRGD UK traffic regulations
✅ Enhances safety for all road users by reducing the risk of vehicle collisions with overhead structures

📏 Highly Visible, Durable & Weather-Resistant

This permanent UK traffic sign is designed for maximum visibility and durability, ensuring reliable performance in all weather conditions:

✔️ Reflective surface for clear visibility in daylight and nighttime driving
✔️ Weatherproof and rust-resistant materials for long-term outdoor use
✔️ Fully TSRGD-compliant, meeting UK road safety standards
✔️ Fade-resistant construction for prolonged effectiveness
✔️ Engineered to withstand extreme weather, including rain, snow, and UV exposure

🛠 Easy Installation & Size Options

It is available in various sizes and materials to accommodate different road environments:

✔️ Pre-drilled holes for quick and secure mounting
✔️ Available in multiple sizes for highways, urban roads, and industrial areas
✔️ Compatible with standard post-mounting systems for easy installation
✔️ Lightweight yet highly durable, ensuring long-term effectiveness
✔️ Offered in different reflective grades to enhance nighttime visibility

✅ Why Choose This Sign?

✔️ Official UK road warning sign for low bridges and overhead restrictions
✔️ Improves road safety by increasing driver awareness
✔️ Highly visible, reflective, and weather-resistant
✔️ Fully compliant with TSRGD UK traffic sign regulations
✔️ Essential for motorways, urban routes, and industrial road networks
✔️ Helps prevent accidents by ensuring large vehicles avoid low-clearance hazards

📌 Summary

• Low Bridge Ahead Sign – Diagram 530A warns of a maximum headroom clearance of 14′-6” (4.4m) ahead.
• Encourages drivers of high-sided vehicles to plan alternative routes or proceed with caution.
• Highly visible, durable, and weatherproof, ensuring long-term effectiveness.
• Ideal for highways, urban roads, tunnels, and low railway bridges.
• TSRGD-compliant, meeting all UK road safety standards.
• Helps prevent accidents by improving driver awareness of height restrictions.
• Available in various sizes with easy installation options.

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Additional resources:

Driving rules

• The Highway Code
• Legal obligations of drivers and riders