Can you walk around the M25?

Firstly, I had to plan the route. All I knew was that it would make sense to start and finish at the Dartford Crossing, although at the time I didn't realise that pedestrians couldn't walk across the bridge. The M25 motorway circles London but because it is a motorway, you can't actually walk on the M25 itself.



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It'll come as no surprise to anyone who uses it frequently, but the average speed on London's orbital motorway is just over 25mph. That means it takes an average of five hours to circumnavigate the capital over the entire 117-mile route. The next slowest is the M4, another motorway notorious for delays.

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One of the UK's largest ever public-private partnerships London's M25 is one of the world's largest orbital motorways and carries 15 percent of the UK's motorway traffic, or 200,000 vehicles a day.

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Junctions and services The M25 has been criticised for having too many junctions; 14 of them serve only local roads. In 2016, Edmund King, president of the Automobile Association, attributed congestion on the M25 to excessive junctions.

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The concrete slabs with which they were made have proved tougher and longer lasting than asphalt, and over the years have needed very little maintenance.

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