Sign in
Basket £7.00 1
Wishlist 0
Compare 0
  • Home
  • Shop
  • About us
  • Contact us
  • Request a quote
  • Morelock Installation
  • Our blog
  • Social values
  • Track your order
Facebook Twitter Instagram Youtube Linkedin
Sign in
Compare 0
0 My compare

View Compare

Wishlist 0
0 My Wishlist

View Wishlist Add all to cart

  • Home
  • Shop
  • About us
  • Contact us
  • Request a quote
  • Morelock Installation
  • Our blog
  • Social values
  • Track your order
1 Basket £7.00 1
1 Shopping Cart
Shopping cart (1)
Subtotal: £7.00

View cartCheckout

FREE Delivery for ALL Online Orders

  • Traffic Signs Icon Traffic Signs
    • Permanent Traffic Signs
    • Temporary Traffic Signs
  • Health & Safety Signs Icon Health & Safety Signs
    • Floor Level Signs
    • Floor Stands & A Boards
    • Photoluminescent Signs
    • Access & Restriction Signs
    • Emergency & Fire Exit Signs
    • Construction & Site Safety Signs
    • Recycling & Waste Management Signs
  • Posts & Fixings Icon Posts & Fixings
    • Posts
    • Fixings
  • Bollards Icon Bollards
    • Dynaflex UK-made
    • Other Bollards
  • Frames Icon Frames
    • Metre Leg
    • Standard Leg
  • ITS Icon Intelligent Traffic Solutions
    • M-SID Vario
    • M-SID Count Systems
    • M-SID Vario + Camera
  • TME Icon TM Equipment
    • Cones
    • Sleeves
    • Barriers
    • Batteries
    • Sandbags
    • Lamps & Beacons
    • Other TM Equipment
  • Custom Design Icon Custom Design
    • Design Banners
    • Design Temporary Signs
    • Design Permanent Signs
    • Design Street Name Plates
    • Design Health & Safety Signs
Home Supplementary Plates
“Accident Sign – Diagram 563 | UK Traffic Management Sign” has been added to your cart. View cart
Single File Traffic Sign – Diagram 518. UK traffic management sign instructing vehicles to merge into a single lane for controlled traffic flow.

Single File Traffic Sign – Diagram 518 | UK Traffic Management Sign

£7.00 inc. VAT £8.40
You save

A traffic management sign instructing drivers to merge into a single lane, ensuring orderly traffic flow and reducing congestion in restricted areas.

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

In stock

Estimated Delivery (Working Days):3 - 7 days
Add to wishlist Add to wishlist
Add to compare Add to compare
Guaranteed safe checkout Pay safely with Visa Pay safely with Visa Pay safely with Master Card Pay safely with Master Card Pay safely with PayPal Pay safely with PayPal Pay safely with American Express Pay safely with American Express Pay safely with Maestro Pay safely with Maestro Pay safely with Stripe Pay safely with Stripe
Your Payment is 100% Secure
Category: Supplementary Plates
SKU: SUP518
πŸ“¦

Free Delivery on ALL Online Orders

No delivery fees, no minimum spend – every order delivered free across the UK.

πŸ’·

Tiered Discounts for Bulk Orders

The more you buy, the more you save. Automatic discounts apply at checkout – perfect for businesses and councils.

🚧 Morelock Installations

Professional design, supply, and installation of all types of traffic signs across the UK.

Learn More πŸš€
Description
Reviews (0)

πŸš— Single File Traffic Sign – Diagram 518 | UK Traffic Management Sign

The Single File Traffic Sign (Diagram 518) is a UK traffic management sign used to instruct road users to merge into a single lane. This sign is commonly used in areas where road narrowing, obstructions, or temporary lane reductions require vehicles to follow an orderly, single-file movement. It plays a key role in reducing congestion, preventing collisions, and ensuring smooth traffic flow.

πŸ”Ή Where is the Single File Traffic Sign Used?

This sign is essential for traffic control in restricted or high-risk areas, including:

βœ… Road narrowing zones – Ensures safe merging of vehicles into a single lane.
βœ… Bridge crossings – Controls traffic where roads are too narrow for multiple lanes.
βœ… Construction and roadworks – Directs vehicles through restricted road sections.
βœ… Temporary traffic management setups – Used where lane reductions require controlled movement.
βœ… Urban and rural roads with lane restrictions – Helps manage traffic in areas with limited road width.

🚦 Improving Traffic Flow & Road Safety

It enhances traffic efficiency and prevents confusion or unsafe overtaking by:

βœ”οΈ Ensuring drivers merge smoothly into a single lane.
βœ”οΈ Reducing collision risks in areas with lane restrictions.
βœ”οΈ Preventing congestion by guiding vehicles into an orderly formation.
βœ”οΈ Enhancing safety in construction zones and temporary road setups.
βœ”οΈ Ensuring compliance with TSRGD UK traffic regulations.

πŸ“ Highly Visible, Durable & Weatherproof

Designed for long-term use in traffic control environments, the Single File Traffic Sign – Diagram 518 offers:

βœ”οΈ High-reflectivity materials for clear visibility in all weather conditions.
βœ”οΈ Weatherproof and corrosion-resistant construction for durability.
βœ”οΈ Impact-resistant build for high-traffic locations.
βœ”οΈ Fully TSRGD-compliant, meeting UK traffic safety requirements.

πŸ›  Easy Installation & Multiple Size Options

This sign is available in various sizes and materials for different road applications.

βœ”οΈ Pre-drilled mounting holes for quick and secure installation.
βœ”οΈ Compatible with standard UK road signposts and brackets.
βœ”οΈ Lightweight yet robust design, ideal for long-term use.
βœ”οΈ Available in different reflective grades to suit various environments.

βœ… Why Choose This Sign?

βœ”οΈ Official UK traffic management sign for single-file traffic control.
βœ”οΈ Helps improve lane discipline and reduce congestion.
βœ”οΈ Highly visible, durable, and weather-resistant for reliable road use.
βœ”οΈ Fully TSRGD-compliant, ensuring adherence to UK traffic laws.
βœ”οΈ Ideal for roadworks, construction sites, bridges, and lane reduction areas.

πŸ“Œ Summary

  • Single File Traffic Sign – Diagram 518 instructs drivers to merge into a single lane.
  • Ensures smoother traffic flow in areas with lane restrictions.
  • Highly reflective, durable, and weatherproof, ideal for high-traffic zones.
  • Essential for roadworks, bridges, and temporary traffic control setups.
  • Fully TSRGD-compliant, ensuring legal use on UK roads.
  • Available in multiple sizes for flexible installation.

πŸ›’Β Visit our shop now:

https://morelock.co.uk/products/

Need Installation services?

Morelock InstallationΒ 

Additional resources:

Driving rules

  • The Highway Code
  • Legal obligations of drivers and riders

Reviews

There are no reviews yet.

Be the first to review “Single File Traffic Sign – Diagram 518 | UK Traffic Management Sign” Cancel reply

Your email address will not be published. Required fields are marked

You have to be logged in to be able to add photos to your review.

Related products

Turn Right Sign – Diagram 606B featuring white arrow pointing right inside blue circular background
Quick View Select options This product has multiple variants. The options may be chosen on the product page

Traffic Must Turn Right Sign (High Speed) – Diagram 606B | Temporary UK Traffic Sign

From £16.23
You save
Select options This product has multiple variants. The options may be chosen on the product page Add to Compare
Keep Left Sign – Diagram 610A showing downward left arrow inside blue circular background
Quick View Select options This product has multiple variants. The options may be chosen on the product page

Keep Left Sign – Diagram 610A | Permanent UK Traffic Sign

From £4.13
You save
Select options This product has multiple variants. The options may be chosen on the product page Add to Compare
Turn Right Sign – Diagram 606B featuring white arrow pointing right inside blue circular background
Quick View Select options This product has multiple variants. The options may be chosen on the product page

Traffic Must Turn Right Sign (Low Speed) – Diagram 606B | Temporary UK Traffic Sign

From £5.09
You save
Select options This product has multiple variants. The options may be chosen on the product page Add to Compare
Turn Left Sign – Diagram 606A showing white left-pointing arrow inside blue circle
Quick View Select options This product has multiple variants. The options may be chosen on the product page

Traffic Must Turn Left Sign (Low Speed) – Diagram 606A | Temporary UK Traffic Sign

From £5.09
You save
Select options This product has multiple variants. The options may be chosen on the product page Add to Compare
For 1 Mile Sign – Diagram 570.1. UK traffic management sign indicating that a hazard or restriction applies for the next 1 mile, ensuring driver awareness and compliance.
Quick View Add to cart

For 1 Mile Sign – Diagram 570.1 | UK Traffic Management Sign

£7.00 inc. VAT £8.40
You save
Add to cart Add to Compare
For 3 Miles Sign – Diagram 570.3. UK traffic management sign indicating that a hazard or restriction applies for the next 3 miles, ensuring driver awareness and compliance.
Quick View Add to cart

For 3 Miles Sign – Diagram 570.3 | UK Traffic Management Sign

£7.00 inc. VAT £8.40
You save
Add to cart Add to Compare
Ice Sign – Diagram 554.3. UK traffic management sign warning motorists of icy road conditions ahead, ensuring winter road safety.
Quick View Add to cart

Ice Sign – Diagram 554.3 | UK Traffic Management Sign

£7.00 inc. VAT £8.40
You save
Add to cart Add to Compare
Queues Likely Sign – Diagram 584.1. UK traffic management sign warning motorists of potential traffic queues ahead to improve road safety.
Quick View Add to cart

Queues Likely Sign – Diagram 584.1 | UK Traffic Management Sign

£7.00 inc. VAT £8.40
You save
Add to cart Add to Compare
400 Yds Sign – Diagram 572.4. UK traffic management sign indicating a hazard 400 yards ahead, ensuring driver awareness and safe navigation.
Quick View Add to cart

400 Yds Sign – Diagram 572.4 | UK Traffic Management Sign

£7.00 inc. VAT £8.40
You save
Add to cart Add to Compare
Stop 150 Yds Sign – Diagram 502.3. UK traffic management sign warning drivers of a mandatory stop in 150 yards, ensuring controlled deceleration and safe stopping.
Quick View Add to cart

Stop 150 Yds Sign – Diagram 502.3 | UK Traffic Management Sign

£7.00 inc. VAT £8.40
You save
Add to cart Add to Compare
Cycle Event Sign – Diagram 950.1V3. UK traffic management sign warning motorists of an upcoming cycle event to improve road safety.
Quick View Add to cart

Cycle Event Sign – Diagram 950.1V3 | UK Traffic Management Sign

£7.00 inc. VAT £8.40
You save
Add to cart Add to Compare
600 Yds Sign – Diagram 572.6. UK traffic management sign warning road users of a hazard 600 yards ahead to improve safety and preparation.
Quick View Add to cart

600 Yds Sign – Diagram 572.6 | UK Traffic Management Sign

£7.00 inc. VAT £8.40
You save
Add to cart Add to Compare
cropped-morelock-fotor-20230620145051
Morelock
  • Morelock House, StrawberryLane, Willenhall, West Midlands, WV13 3RS,
  • 01902 637 575
  • info@morelock.co.uk
  • Monday to Friday (9:00 AM - 5:00 PM)
Navigation
  • Homepage
  • My Account
  • Frequently Asked Questions
  • Our Commitment
  • Social Values
Company
  • About us
  • Contact us
  • Terms & Conditions
  • Privacy & Cookies Policy
  • Return Policy
Subscribe

Enter your email address to get our special offers

[mc4wp_form id="5479"]
Registration No. 3193048
Β© All Rights Reserved by Morelock Signs LTD 2025
Facebook Instagram Linkedin
Manage Consent
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
Manage options Manage services Manage {vendor_count} vendors Read more about these purposes
View preferences
{title} {title} {title}
  • Call us
  • Our Email
  • Our Linkedin
  • Our Instagram
  • Buy now