"Chris Jones" wrote the following
in:

If the North/South Circulars had been built properly as 3-4 lane
motorways, people living in London wouldn't need to use the M25 to
get from one part to another, and it would do what it was designed
for - cater for long-distance traffic.

The North Circular's not that bad. Apart from a few dodgy bits where it
gets very congested or narrows down to single carriageway, it's
generally alright.