Ringway 1, also known as the London Motorway Box, may have been given the number 'M14' had it been completed. Typically each of the four sides were treated separately.
- North Cross Route - Unbuilt, save a tiny bit at Hackney Wick Interchange. Would have included link to A40 in Acton
- East Cross Route - Mostly built, though not to a high standard, and middle section not motorway. Temporarily numbered A102 and A102(M).
- South Cross Route - Unbuilt
- West Cross Route - Part built, from A40(M) to A40. Given temporary number M41.