Error 404

Document not found

Error 404 sign

The page you just tried to reach at Roads.org.uk wasn't found. Either you followed a bad or out-of-date link, or you mistyped the page address.

If you arrived at this page through a link within Roads.org.uk, please let me know where that link was so I can correct it.

Your request to see a non-existent page generated the error code 404. Before you move on, you might like to read about the roads that share that number.

The A404

Unlike the document you wanted to see, the A404 is easily found. It runs from Marylebone in London to Maidenhead, Berkshire via an indirect route that takes it as far north as Amersham. At its westernmost end it forms a spur of the M4 called the A404(M). It originally ran only from London to Amersham, but was extended in 1935 to reach the A4 near Maidenhead, giving it its present rather silly route.

The route is slightly more than 43 miles in length, of which the westernmost 9.6 miles are a trunk road. There's a detailed account of its route and history at the SABRE Wiki.

You would never use the A404 to make a journey from Marylebone to Maidenhead, just like you'd never come to this page in order to find your way somewhere else. But wasn't this a pleasant diversion?

The B404

A short and insignificant route, matching this short and insignificant page, the B404 is in Covent Garden in London's West End, running from Shaftesbury Avenue to William IV Street just off Trafalgar Square. Much of it is one-way so it only forms a through route from north to south. It's described on the SABRE Wiki too.

In this section

What's new

Oxford's Ground Zero

Oxford's Zero Emission Zone is just a trial, but transport policy in Oxford has become the catalyst for pitched battles and drawn in protestors from across the UK. What's happening to this genteel university town?

2023 end of year message

It’s been a quiet year for Roads.org.uk, but we will be back to our usual schedule soon.

London’s other forgotten motorways

We’ve spent years documenting the unbuilt urban motorway network planned for London. Today we’re unveiling more new routes that have never been seen before!

Share this page

Have you seen...

Thelwall Viaduct

Thousands of vehicles travel the M6 between the M56 and M62 each day. They all cross the River Mersey and the Manchester Ship Canal, and the bridge that carries them is notorious from travel reports nationwide. But what does it actually look like from the ground?

About this page

Published

Last updated