€16.16 – €215.67
One-Lane Section Sign – W101 | Permanent Ireland Traffic Sign. Fast production, premium quality, CE certified, reflective & TSM compliant.
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Visit FAQ Section 📖The One-Lane Section Sign – W101 | Permanent Ireland Traffic Sign is designed to alert road users that the carriageway ahead is reduced to a single lane, and appropriate merging behaviour is required. This type of warning is especially important in narrowing roadways, construction zones, or traffic-calming layouts, where bidirectional flow may need to share one lane.
The symbol consists of a single bold black upward arrow on a yellow diamond background, clearly indicating a one-lane traffic scenario. It complies with Chapter 6 of the Traffic Signs Manual (TSM) and is frequently used on rural roads, local detours, and lane-controlled access points.
This sign helps ensure lane discipline, reduced speed, and safer merging, particularly where space is restricted or sightlines are compromised.
Produced to EN12899-1 standards and aligned with TSM 2024 specifications, the W101 sign provides high-visibility messaging to motorists, ensuring timely lane transitions. It reduces the chance of side-swipe collisions and optimises the flow of alternating or merge-in-turn traffic.
Correct placement ensures drivers are well-informed and able to adjust speed and position before reaching the single-lane segment.
RA2 – High-performance prismatic reflectivity for standard applications
R3B – Microprismatic for enhanced visibility in low-light or rural settings
Aluminium – Durable, corrosion-resistant and long-lasting
Sticker (Self-Adhesive) – Perfect for overlaying or temporary installation needs
Channel – Standard for post-mounting
Plate-Only – Designed for direct mounting to flat structures
Self-Adhesive – Applied on smooth surfaces without tools
600, 750, 900, 1200 – Based on road type and approach speed per TSM Table 6.1
✔️ TSM Chapter 6 and EN12899-1 compliant
✔️ Provides clear early warning for road narrowing
✔️ Reflective options suited to all conditions
✔️ Strong, weather-resistant construction
✔️ Quick production and nationwide delivery
✔️ Supported by Ireland’s trusted signage professionals
Roadworks or temporary single-lane diversions
Narrow rural bridges or culverts
Traffic management layouts requiring merge-in-turn setups
Shared lane usage zones in urban or regional schemes
Contra-flow situations on national or secondary roads
✅ Instantly alerts drivers to an upcoming one-lane section
✅ Improves road safety by encouraging timely merging
✅ Fully CE certified and made to Ireland’s signage regulations
✅ Weatherproof and high-visibility for Irish conditions
✅ Available in various sizes and fixings
✅ Ideal for both permanent roads and temporary works
| Feature | Options / Details |
|---|---|
| Sign Number | W101 |
| Product Name | One-Lane Section Sign |
| Standard Sizes | 600mm, 750mm, 900mm, 1200mm |
| Reflective Grades | RA2, R3B |
| Substrates | Aluminium, Sticker (Self-Adhesive) |
| Fixing Methods | Channel, Plate-Only, Self-Adhesive |
| Compliance | TSM Chapter 6, CE Certified, EN12899-1 |
| Use Case | Advance warning of one-lane section or merge point |
Need Installation services?
| Weight | N/A |
|---|---|
| Facing | RA2, R3B |
| Substrate | Aluminium, Sticker |
| Fixing | Channel, Plate-Only, Self-Adhesive |
| Size (mm) | 300, 450, 600, 750, 900, 1200 |
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