What is the longest road in London, UK? Any that span the north to the south? East to west?

Question

What is the longest road in London, UK? Any that span the north to the south? East to west?

Answer 1

M25 118 miles long.

Answer 2

M25

Answer 3

The A6 goes from (at least) Carlisle at the very top of the country, to London. Maybe further...

Answer 4

The Great North Road (A1) runs from London to Edinburgh taking in many other towns and cities along the way, so I imagine that is the longest road in the UK.

Answer 5

Probably the A6 from Marble Arch - Edgware Road - Kilburn & Cricklewood High Roads.  It used to be the road to Wales long ago.

Answer 6

The m25 goes all the way round london.

Answer 7

A5 watling street,was an original roman road goes south  east to west