Can the M25 technically be considered a roundabout? And if so would that make it the largest roundabout in the world?

11 comments

1. It’s not a complete circle, the Dartford crossing is the A282

2. By that logic the largest roundabout is probably highway one in Afghanistan which is a ring road over 1000 miles long. Not sure how much is currently passable though.

   Or otherwise the one that goes around Iceland.

3. Roundabouts tend not to have roads running in both directions.

   In terms of largest roundabouts – I live close to The Shepherd and Flock Roundabout, which might be the largest inhabited roundabout in Europe.

4. No it’s a ring road around London and the surrounding areas though the North Circular is the actual London ring road, anything inside of it is definitely London and most of what’s outside definitely isn’t.

5. From now on I will refer to the English Channel as the South Maritime Gyratory

6. It’s often called the biggest car park in the country.

7. You would first have to prove its not classfied as a car park already

8. No. As a general rule, it’s not a roundabout if there are loads of exits going in to the middle of it and opposing lanes of traffic

9. That would probably make it the only rbt with speed limit 70 mph, and London the only city inside a rbt.

10. 1) it’s not complete, see Dartford Crossing

    2) no, it’d be the world’s largest car park

11. No, it’s a ring road. Traffic goes in both directions.