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Keep Left Sign – Diagram 610A. UK traffic sign instructing vehicles to pass on the left of an obstacle. Available in circular sizes from 300mm to 1500mm with reflective finishes.
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The Keep Left Sign – Diagram 610A is a mandatory UK traffic sign used to instruct all vehicles to pass to the left of an obstruction or central reservation. It is commonly deployed on traffic islands, pedestrian refuges, and temporary works zones to ensure correct lane discipline and maintain safe road flow.
Compliant with TSRGD Diagram 610A, BS EN 12899-1, and Chapter 3 of the Traffic Signs Manual, this blue circular sign features a downward-angled white arrow pointing left. It is instantly recognisable and enforceable under UK traffic law.
Manufactured using RA2 or R3B reflective materials, this sign is available in standard UK circular sizes from 300mm to 1500mm, in aluminium, composite, or self-adhesive vinyl formats. Mounting options include channel rail, plate-only, or adhesive backing.
Technical ReviewDiagram 610A is a key component of mandatory directional signage in the UK, providing legal instruction to “keep left.” It is ideal for both permanent road layouts and temporary traffic management situations. Its bold design ensures visibility day or night, in all weather conditions.
Why Choose Morelock for Your Diagram 610A Sign?
Fully compliant with TSRGD Diagram 610A and Chapter 8 Reflective options in RA2 or R3B for high visibility Durable aluminium, composite, or vinyl materials Available in 300mm to 1500mm circular sizes Mounting: channel rail, plate-only, or self-adhesive Manufactured in the UK with rapid dispatch
Ideal For:• Traffic islands and pedestrian refuges
• Central reservations and bollards
• Temporary works and road maintenance sites
• Construction access control
• One-way systems and road narrowing points
Summary (Why You Should Buy This Product)• Instructs drivers to keep left for road safety
• Compliant with UK traffic legislation
• High-durability and reflective finish
• Available in all UK standard sizes and formats
• Made in the UK with reliable delivery
Product Specifications Table| Feature | Details |
|---|---|
| Product Name | Keep Left Sign |
| Diagram Number | 610A |
| Reflective Class (Facing) | RA2, R3B |
| Mounting Options | Channel, Plate-only, Self-Adhesive |
| Material (Substrate) | Aluminium, Composite, Stickers |
| Available Sizes (mm) | 300, 450, 600, 750, 900, 1200, 1500 |
| Compliance | TSRGD Diagram 610A, BS EN 12899-1, Chapter 8 |
Useful Road Sign Resources| Section | Link & Description |
|---|---|
 Shop Permanent Signs |
Explore all Chapter 8 compliant road signs – reflective and compliant |
 Circular Sign Sizes |
Available in 300mm to 1500mm sizes – fast UK delivery |
| Permanent Installation Options |
Nationwide UK installation and fixings service |
 Get a Road Sign Quote |
Request pricing for bespoke orders or bulk quantities |
 Government Guidance |
View Highway Code Rules for Permanent Signs |
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