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Home Permanent Traffic Signs Standard TSRGD Signs Triangular Permanent Signs
Road Narrows on Both Sides Ahead Warning Sign – Diagram 516 showing a narrowing carriageway symbol used to alert drivers of reduced road width.
  • Road Narrows on Both Sides Ahead Warning Sign – Diagram 516 showing a narrowing carriageway symbol used to alert drivers of reduced road width.

Road Narrows on Both Sides Ahead Warning Sign – Diagram 516 | Permanent UK Traffic Sign

£11.51 – £86.41Price range: £11.51 through £86.41
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Road Narrows on Both Sides Ahead Warning Sign – Diagram 516. Warns drivers of narrowing carriageway on both sides. Available in multiple sizes and reflective options.

If the product offers variations, Choose an option from each row:

  • RA2
  • R3B
  • Aluminium
  • Composite
  • Stickers
  • Channel
  • Plate Only
  • Self-Adhesive
  • 600
  • 750
  • 900
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Estimated Delivery (Working Days):3 - 7 days
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Categories: Permanent Traffic Signs, Standard TSRGD Signs, Triangular Permanent Signs
SKU: N/A Brand: Morelock Signs
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Road Narrows on Both Sides Ahead Warning Sign – Diagram 516 | Permanent UK Traffic Sign

The Road Narrows on Both Sides Ahead Warning Sign – Diagram 516 is an official UK traffic warning sign used to alert drivers that the carriageway ahead becomes narrower on both sides. Commonly installed on rural roads, country lanes, and roadworks, this sign improves safety by warning motorists to reduce speed, remain alert, and prepare for potential traffic bottlenecks.

Compliant with TSRGD Diagram 516, BS EN 12899-1, and Chapter 4 of the Traffic Signs Manual, this warning sign is manufactured from highly durable aluminium or composite substrates and is finished with RA2 or R3B reflective sheeting for optimal visibility during both daytime and night-time driving.

It is available in standard UK triangular sizes: 450mm, 600mm, 750mm, 900mm, 1200mm, and 1500mm, and can be installed using channel fixings, plate-only, or self-adhesive mounting for both temporary and permanent applications.


🔧 Technical Review

The sign features a red-bordered triangle containing two black vertical lines that bend inward, visually indicating a road narrowing from both sides. Its intuitive graphic provides a fast and clear warning for approaching drivers, helping them react accordingly.


✅ Why Choose Morelock for Your Diagram 516 Sign?

✔️ Fully compliant with TSRGD, BS EN 12899-1, and Chapter 4
✔️ Reflective finish: RA2 or R3B for high visibility
✔️ Aluminium or composite material options
✔️ Sizes: 450mm, 600mm, 750mm, 900mm, 1200mm, 1500mm
✔️ Channel, plate-only, and self-adhesive mounting systems
✔️ Free UK-wide delivery with fast dispatch from Morelock


📌 Ideal For:

• Roads narrowing due to design or obstacles
• Roadwork zones and temporary lane changes
• High-risk, tight-road areas in rural or urban zones
• Local authority and contractor traffic signage
• Both permanent installations and short-term control


🌟 Summary (Why You Should Buy This Product)

• ✅ Official UK warning sign for road narrowing on both sides
• ✅ Compliant with Diagram 516 and BS EN 12899-1
• ✅ Available in 6 standard sizes (450mm to 1500mm)
• ✅ Highly visible, reflective, and weather-resistant
• ✅ Fast delivery direct from the UK manufacturer


📊 Product Specifications Table

Feature Details
Product Name Road Narrows on Both Sides Ahead Warning Sign
Diagram Number 516
Reflective Class (Facing) RA2, R3B
Mounting Options Channel, Plate-only, Self-Adhesive
Material (Substrate) Aluminium, Composite, Stickers
Available Sizes (mm) 450, 600, 750, 900, 1200, 1500
Compliance TSRGD Diagram 516, BS EN 12899-1, Chapter 8

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Weight 3.9 kg
Facing

RA1, RA2, R3B

Substrate

Aluminium, Composite, Stickers

Fixing

Channel, Plate Only, Self-Adhesive

Size (mm)

300, 600, 750, 900

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:

Facing Type Warranty Duration
RA17 years
R2/RA210 years
R3B/R3C12 years

 

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