Highway code road sign drivers don’t understand that’s raking in millions in fines

It’s a common sight on UK roads, but failing to understand what it means and comply with it can result in fines of between £60 and £130

Motorists are being urged to watch out for a plain red circle road sign with a blank centre — as it enforces a strict rule that many drivers fail to fully understand. The unmistakable sign, featuring a red border with a completely empty white interior, means no vehicles are permitted to pass.

According to the official Highway Code, the sign indicates a road that is closed to all vehicular traffic, making it illegal for drivers to proceed beyond that point.

Mandy Roscoe, signage specialist at Carrick Signs, cautioned that misinterpreting this simple sign could spell trouble for drivers, especially near school streets, low-emission zones, and bus-only routes.

It’s even leading to motorists being hit with hefty fines and penalty points. Always keep on top of the latest Welsh news with our newsletter

She said: “Drivers see a plain red circle and think it’s inactive, faded, or only applies to motor vehicles. But entering those restricted zones can mean an instant penalty notice.

And, in autumn, with limited light and rain or mist, you’ve got even less time to spot supplementary plates showing exemptions or time windows.”

The sign applies to all motor vehicles, including:

• Cars
• Motorcycles
• Vans
• Lorries

In many cases, it also covers other vehicles such as horse-drawn carriages, although local signage will usually specify if exemptions apply.

It is commonly used to prevent vehicles entering:

• Pedestrianised areas
• Quiet lanes
• Private roads
• Certain bridges or narrow routes

Unlike other prohibition signs that feature symbols — such as a car or motorbike — this particular sign is deliberately left blank to signify that the restriction applies to all vehicles, rather than just certain types. The Department for Transport uses this simple design to ensure it can be recognised quickly and without confusion.

However, motorists should be aware of the penalties for ignoring these signs. Transport for London raked in £89.3million during 2023-24 from red route fines, marking a 57% rise over just five years.

During the same period, on-street penalty charge notices brought in £6.85million in Manchester, with more than 213,000 PCNs handed out.

For drivers, the consequences are swift: fines typically range from £60 to £130, depending on the local authority, and enforcement is frequently carried out using ANPR or CCTV technology, making these violations difficult to challenge.

To help motorists avoid needless expense, Mandy recommends three straightforward steps:

• Always regard a plain red circle (without pictogram) as “no vehicles at any time” unless you spot a clear exemption
• Take a moment to examine supplementary plates directly beneath the sign, as these frequently display times, permitted vehicle categories, or local exceptions
• In low lighting or harsh weather conditions, reduce speed at junctions and entrances to allow yourself additional time to read signage correctly before proceeding