There are over 25,000 roundabouts in the UK and let’s face it, even the most experienced drivers sometimes feel nervous when approaching complex, multi-lane roundabouts. With confusing lane markings, heavy traffic, and unclear signage, it's no surprise roundabouts are among the UK's most common locations for road incidents. That’s why we’ve looked at MotorEasy’s findings and CrashMap data covering 2010 to 2020 to take a closer look at some of the UK's most accident-prone roundabouts.

The UK's Top 10 Most Accident-Prone Roundabouts

Based on recorded incidents between 2010-2020, here are the UK's roundabouts that have seen the highest number of accidents.

1. Hammersmith Flyover, West London

Total incidents: 287

Why it's tricky: Connecting major routes including the A4 and A219, this bustling junction near Hammersmith Tube Station is packed with traffic, cyclists, buses, and pedestrians—particularly during rush hour.

2. Redbridge Roundabout, Ilford, East London

Total incidents: 284

Why it's tricky: The intersection of the A12 and A406 ensures heavy traffic flow. Complex lanes make it a daunting spot, especially for unfamiliar drivers.

3. The Crooked Billet, Walthamstow, East London

Total incidents: 252

Why it's tricky: Linking busy roads such as the A406, A112, and B179, this roundabout can quickly become a source of confusion due to lane merges and heavy traffic volumes.

4. Staples Corner, Brent, Northwest London

Total incidents: 221

Why it's tricky: Dual roundabouts, flyovers, and connections to the A406, M1, and A5 create a notoriously complex junction. High traffic volume and multiple lane changes amplify the challenge.

5. Hyde Park Corner, Central London

Total incidents: 213

Why it's tricky: Positioned at the intersection of several key roads near Hyde Park and the Wellington Arch, this roundabout sees a constant flow of cars, buses, cyclists, and pedestrians from every direction.

6. Portsbridge Roundabout, Portsmouth, Hampshire

Total incidents: 205

Why it's tricky: Serving as a gateway connecting the M27 and A27, the heavy traffic load combined with multiple entry and exit points can easily overwhelm unfamiliar drivers.

7. Mar Dyke Interchange, Aveley, Essex

Total incidents: 192

Why it's tricky: This busy roundabout connects the M25 to the A13 and A282, with fast-moving motorway traffic creating a high-pressure environment.

8. Bulls Bridge Roundabout, Hounslow, West London

Total incidents: 186

Why it's tricky: The intersection between the A312 and A437 near the busy M4 motorway sees constant congestion, often compounded by large goods vehicles and industrial traffic.

9. Bean Interchange, Kent

Total incidents: 184

Why it's tricky: Connecting the busy A2 and B255, the Bean Interchange sees a significant volume of traffic. Confusing lane layouts and frequent merging make it particularly demanding.

10. Great Cambridge Road Roundabout, North London

(Was previously Old Street Roundabout with 181 incidents)

Total incidents: 179

Why it's tricky: Situated at the intersection of busy routes including the A10 and A406 in North London, the Great Cambridge Road Roundabout handles heavy daily traffic, complex lane structures, and frequent congestion. Multiple lanes and swift merging require extra vigilance, making this roundabout particularly challenging, especially during peak travel times.

Staying Safe on Roundabouts

Roundabouts don't need to be stressful - keep these tips in mind:

Slow down: Approach at or below the speed limit, giving yourself plenty of time to react.

Check and re-check your lane: Select your lane early, observing signage carefully.

Always signal clearly: Using indicators when entering and exiting a roundabout greatly reduces confusion.

Be vigilant: Roundabouts are hotspots for minor collisions. Stay alert even when traffic is slow-moving.

Give larger vehicles extra room: Lorries and buses have large blind spots, so always maintain a safe distance.

Stay calm and focused: Don’t let impatient drivers rush you. Take your time and prioritise safety.

Navigating roundabouts confidently comes down to being well-prepared and aware of your surroundings. By staying calm and applying these practical tips, you’ll handle even the UK's trickiest roundabouts with ease!