Tunnel Restriction Sign
What Is a Tunnel Restriction Sign? UK Theory Test Guide
What Is a Tunnel Restriction Sign? UK Theory Test Guide
A tunnel restriction sign tells drivers carrying dangerous goods whether their vehicle is permitted to travel through a particular road tunnel. These signs are an important part of UK road safety and something you may encounter in your DVSA driving theory test.
Tunnel restriction signs are designed to reduce the risk of serious incidents involving vehicles transporting hazardous materials, such as flammable liquids, explosives and toxic substances.
What Does a Tunnel Restriction Sign Look Like?
What Does a Tunnel Restriction Sign Look Like?
A tunnel restriction sign is usually a circular sign with a red border, displaying a black letter on a white background.
The letters B, C, D or E indicate the tunnel's restriction category. Each category determines which dangerous goods are prohibited from travelling through the tunnel.
Do Tunnel Restrictions Apply to Ordinary Cars?
Do Tunnel Restrictions Apply to Ordinary Cars?
For most motorists driving an ordinary car, tunnel restriction signs will not affect their journey.
These restrictions primarily apply to vehicles transporting dangerous goods covered by the ADR regulations. However, all drivers should recognise the signs and understand their purpose.
Heading Text
This is an Image & Text block. Click on this text to start editing and enter your own text with some basic formatting. Just click anywhere outside the text box when you're done to continue working on the rest of your page.
To change the layout and appearance of a block, such as the size of its images and columns, click on the Change Layout button on the block toolbar, to the right of each block.