Two-Way Traffic Sign – Diagram 521 | Temporary UK Traffic Sign

🚧 Two-Way Traffic Sign – Diagram 521 | Temporary UK Traffic Sign

The Two-Way Traffic Sign (Diagram 521) is a temporary UK traffic sign that warns drivers of a transition to two-way traffic ahead. It is crucial for roadworks, contraflow systems, and temporary lane adjustments, ensuring that motorists stay alert and prepared for oncoming vehicles in previously one-way sections.

With its high-visibility triangular design, red border, and bold black arrows, this sign provides clear, immediate guidance to help drivers maintain safe lane discipline and adjust their speed accordingly. Fully TSRGD-compliant, it is widely used on highways, urban roads, rural routes, and construction zones where traffic flow changes require clear signage for safety.

⚠️ Improves Driver Awareness & Prevents Lane Confusion

This temporary road sign plays a key role in preventing accidents and ensuring smooth traffic transitions, particularly in areas where one-way roads temporarily change to two-way traffic.

✅ Warns drivers of two-way traffic ahead
✅ Encourages motorists to adjust speed and remain in their lane
✅ Reduces accident risk by increasing awareness of oncoming vehicles
✅ Essential for roadworks, temporary contraflows, and diversion routes

By providing clear advance warning, this sign helps create safer driving conditions and prevents sudden lane changes or risky overtaking.

📏 Highly Visible, Durable & Weather-Resistant

Designed for temporary use in roadwork zones and lane management situations, this official UK road sign ensures maximum durability and visibility in all weather conditions.

✔️ Bold triangular shape with dual black arrows for instant recognition
✔️ Retroreflective surface ensures high visibility in low-light and night-time conditions
✔️ Weatherproof and corrosion-resistant materials for long-lasting outdoor use
✔️ TSRGD-compliant, ensuring it meets UK road safety regulations

These features ensure motorists can quickly recognize and respond to two-way traffic sections, preventing confusion and unsafe driving behaviors.

🛠 Quick Installation & Portable Design

The Two-Way Traffic Sign (Diagram 521) is lightweight and easy to install, making it ideal for temporary road management and detours.

✔️ Portable and quick to set up for roadwork teams and traffic management crews
✔️ Compatible with standard traffic sign frames and stands
✔️ Available in multiple sizes to suit different road conditions and visibility requirements
✔️ Ideal for roadworks, lane shifts, and temporary traffic control areas

With fast deployment and repositioning, this sign ensures efficient traffic management and helps drivers adjust to two-way road sections safely.

✅ Why Choose This Temporary Sign?

✔️ Official UK traffic sign for two-way traffic sections
✔️ Highly visible & reflective for enhanced driver awareness
✔️ Weatherproof & durable for outdoor use in all conditions
✔️ Lightweight & portable for quick setup and removal
✔️ Prevents confusion & ensures smooth traffic flow in affected areas
✔️ Fully compliant with UK TSRGD temporary traffic sign regulations

📌 Summary

• Two-Way Traffic Sign – Diagram 521 is a temporary UK traffic sign warning drivers of an upcoming two-way traffic section.
• Essential for roadworks, contraflow systems, and lane adjustments, ensuring clear guidance for motorists.
• Highly visible, lightweight, and weather-resistant, ensuring long-term effectiveness in all conditions.
• Easy to set up and relocate, making it ideal for construction sites and temporary traffic control zones.
• Manufactured to TSRGD standards, ensuring full compliance with UK road safety regulations.

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Additional resources:

Driving rules

• The Highway Code
• Legal obligations of drivers and riders