Tunnel Warning Sign – Diagram 529.1 | Permanent UK Traffic Sign

£7.29 – £71.86

Warning sign – alerts drivers that a tunnel is ahead, requiring caution due to reduced lighting, possible height restrictions, and changing road conditions.

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⚠️ Tunnel Warning Sign – Diagram 529.1 | Permanent UK Traffic Sign

It is an official UK traffic sign that informs motorists of an upcoming tunnel. This sign is crucial for road safety and traffic awareness, ensuring that drivers prepare for reduced lighting, possible changes in air conditions, and potential height or width restrictions. Fully TSRGD-compliant, this sign is commonly installed on routes leading into tunnels on highways, rural roads, and mountain passes.

📍 Where is the Tunnel Warning Sign Used?

This warning sign is placed in locations where drivers need to be aware of an approaching tunnel, ensuring they adjust their driving accordingly:

Major roadways and highways with tunnels
Mountain passes or hilly terrains with underground roadways
Urban areas with underpasses or tunnelled routes
Coastal roads with tunnels through cliffs
Routes where artificial or natural tunnels exist

By alerting drivers to an upcoming tunnel, this sign helps reduce sudden braking, unnecessary lane changes, and confusion in low-visibility conditions.

⚠️ Ensuring Safe Driving in Tunnels

The Tunnel Warning Sign (Diagram 529.1) enhances road safety by:

✅ Warning drivers to prepare for reduced lighting and possible lane restrictions
✅ Encouraging reduced speed to accommodate tunnel conditions
✅ Alerting high-sided vehicles to check clearance for height and width restrictions
✅ Preventing sudden lane changes due to limited visibility
✅ Ensuring compliance with UK road safety regulations

With its clear triangular warning design, featuring a tunnel entrance 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 weather conditions.

✔️ Retroreflective surface for high visibility in daylight and night-time conditions
✔️ Weatherproof and corrosion-resistant materials for long-lasting performance
✔️ Fully TSRGD-compliant, meeting UK road safety regulations

🛠 Easy Installation & Multiple Size Options

The Tunnel Warning Sign – Diagram 529.1 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 city underpasses
✔️ Compatible with post-mounting systems for easy setup

✅ Why Choose This Sign?

✔️ Official UK warning sign for tunnel entrances
✔️ Highly visible & reflective for maximum safety compliance
✔️ Weatherproof & durable for long-term outdoor use
✔️ Prevents accidents & enhances driver awareness
✔️ Fully compliant with UK TSRGD traffic regulations

📌 Summary

Tunnel Warning Sign – Diagram 529.1 warns drivers of an upcoming tunnel entrance.
Encourages caution, reduced speed, and awareness of possible restrictions.
Highly visible, durable & weatherproof for long-term outdoor use.
Ideal for highways, mountain roads, urban underpasses, and coastal routes.
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: