Dual Carriageway Ends Sign – Diagram 520 | Permanent UK Traffic Sign

£7.29 – £71.86

Warning sign – alerts drivers that the dual carriageway is ending, requiring caution as traffic merges into a single lane.

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⚠️ Dual Carriageway Ends Sign – Diagram 520 | Permanent UK Traffic Sign

It is an official UK warning sign that alerts drivers to the end of a dual carriageway, indicating that traffic will merge into a single carriageway ahead. This sign is essential for road safety and traffic management, ensuring that motorists reduce speed, prepare for lane merging, and drive cautiously. It is fully TSRGD-compliant and is commonly found on motorways, highways, and rural roads transitioning from dual to single carriageways.

📍 Where is the Dual Carriageway Ends Sign Used?

This sign is installed in locations where drivers must prepare for reduced lanes and potential traffic merging:

End of motorways or high-speed dual carriageways transitioning into single carriageways
Rural roads where dual-lane roads merge into a single lane
Areas where overtaking lanes end, requiring vehicles to merge
Routes leading to single-track bridges or restricted roadways
Construction zones where dual lanes temporarily merge into one

By warning drivers of the upcoming road change, this sign helps prevent sudden braking, last-minute lane changes, and potential collisions.

⚠️ Ensuring Safe Traffic Merging

The Dual Carriageway Ends Sign (Diagram 520) plays a critical role in:

✅ Alerting drivers to the lane reduction and need to merge safely
✅ Encouraging reduced speed and increased awareness of oncoming traffic
✅ Preventing last-minute lane changes and dangerous overtaking attempts
✅ Ensuring compliance with UK road safety laws on merging lanes

With its clear triangular warning design featuring a narrowing dual road symbol, this sign provides instant recognition for approaching motorists.

📏 Highly Visible, Durable & Weather-Resistant

This official UK warning sign is designed for long-term outdoor use, ensuring maximum visibility and durability in all conditions.

✔️ Retroreflective surface for high visibility in day and night conditions
✔️ Weatherproof and corrosion-resistant materials for long-lasting performance
✔️ TSRGD-compliant – fully meets UK road safety regulations

🛠 Easy Installation & Multiple Size Options

The Dual Carriageway Ends Sign – Diagram 520 is available in various standard UK road sign sizes and materials to fit different locations.

✔️ Pre-drilled holes for quick and secure installation
✔️ Multiple size options for highways, rural roads, and merging areas
✔️ Compatible with post-mounting systems for easy setup

✅ Why Choose This Sign?

✔️ Official UK warning sign for the end of dual carriageways
✔️ Highly visible & reflective for maximum safety compliance
✔️ Weatherproof & durable for long-term outdoor use
✔️ Prevents confusion & enhances driver awareness
✔️ Fully compliant with UK TSRGD traffic regulations

📌 Summary

Dual Carriageway Ends Sign – Diagram 520 warns that the road ahead narrows from a dual to a single carriageway.
Encourages drivers to slow down and merge safely when lanes reduce.
Highly visible, durable & weatherproof for long-term outdoor use.
Ideal for highways, rural roads, and road transition areas.
Fully compliant with TSRGD UK traffic sign regulations.

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Additional resources:

Driving rules

The reflective materials used are weather resistant and designed for outdoor application. The range consists of three classes including RA1, R2/RA2, and R3B/R3C. The outdoor service life for each class of material is as follows: