Just west of it. Is the concurrency of the eastern-most A64M segment and western-most A64 segment intended? Is one carriageway motorway and the other one not?
Yes. Basically they built the upper-motorway/lower-local carriageway arrangement eastbound, but bodged the westbound to be a rollercoaster that's parts of one and parts of the other and parts half-way up instead.
The 'North East Urban Motorway' was meant to tie in here, with free-flowing slip roads onto the A64/A64(M), IIRC.