🚛 Diagram 820A – Road Unsuitable for Long Vehicles 🛑

Warning for Drivers of Large & Extended Vehicles

Diagram 820A – Road Unsuitable for Long Vehicles is a critical UK road sign used to warn drivers of long or articulated vehicles that the road ahead is unsuitable for their vehicle size. This blue rectangular sign with white text provides a clear and visible warning, helping drivers avoid getting stuck, causing congestion, or damaging their vehicles on tight bends, steep inclines, or narrow lanes.

This sign is commonly found in rural areas, old town roads, steep hills, or sections with sharp turns where long vehicles would struggle to maneuver safely. By following this sign, HGVs, lorries, buses, and trailers can take alternative routes to prevent disruption.

🔹 Why Is the “Road Unsuitable for Long Vehicles” Sign Important?

Long vehicles require wider turning space and more clearance than standard-sized cars. Roads with tight corners, steep gradients, weak bridges, or weight limits can become hazardous for articulated trucks, coaches, or extended trailers.

🚨 Key Dangers Without This Sign:
✔️ Vehicles Getting Stuck – Tight spaces make it impossible for long vehicles to turn safely.
✔️ Traffic Blockages – Large vehicles may need to reverse or reroute, causing delays.
✔️ Increased Collision Risk – Oncoming vehicles may not have enough space to pass safely.
✔️ Road & Infrastructure Damage – Bridges, barriers, or property may be damaged due to limited clearance.

By displaying Diagram 820A, road authorities help prevent accidents, reduce congestion, and protect infrastructure.

🔹 Key Features & Compliance ✅

✔️ Fully Regulation-Compliant – Meets UK Traffic Signs Regulations and General Directions (TSRGD).
✔️ High-Visibility Design – Blue background with bold white text for easy readability.
✔️ Durable & Weatherproof – Made from high-quality, rust-resistant materials.
✔️ Reflective Options Available – Ensures visibility in low-light conditions.
✔️ Available in Multiple Sizes – Conforms to official UK road sign dimensions.

🔹 Where Should This Sign Be Installed? 📍

🚜 Narrow Country Lanes & Rural Roads – To prevent long vehicles from getting stuck.
🚧 Tight Urban Roads & Historic Towns – Where road layouts are not designed for extended vehicles.
🏗️ Steep Hills & Sharp Bends – To avoid difficult or dangerous maneuvers.
🚦 Bridges & Low Clearance Routes – Where height or weight restrictions apply.

Proper placement of Diagram 820A ensures that drivers of long vehicles can plan alternative routes, avoiding disruptions and dangerous situations.

🔹 Why Buy from Morelock Signs? 🏆

At Morelock Signs, we manufacture high-quality, regulation-compliant road signs designed for maximum safety and durability. Our Diagram 820A signs are built using top-grade materials, ensuring long-lasting performance and compliance with UK road regulations.

🚦 Why Choose Us?
✔️ Premium-Quality Materials – Built to withstand all weather conditions.
✔️ Fully Compliant with UK Standards – Meets Department for Transport regulations.
✔️ Customizable Options – Available in various sizes and reflective finishes.
✔️ Fast & Reliable Delivery – Quick shipping across the UK.
✔️ Trusted by Local Authorities & Businesses – A leading supplier of road safety solutions.

📌 Summary – Why You Need Diagram 820A 🚛

✅ Prevents Long Vehicles from Entering Unsuitable Roads – Reduces accident risks.
✅ Improves Traffic Flow – Avoids congestion caused by stuck or slow-moving oversized vehicles.
✅ Highly Visible Design – Clear and readable in all conditions.
✅ Regulation-Compliant – Fully meets UK traffic signage standards.
✅ Weatherproof & Durable – Made from high-quality materials.
✅ Fast & Reliable Delivery – Get your road sign quickly and efficiently.