Hiya, did you survey this? Because according to photos on geograph the cycleway (which is on the alignment of the old railway line) goes over the road. They don’t join at the crossing point, though there is a (currently unmapped) link ramp on the south side.

https://www.geograph.org.uk/photo/88976
https://www.geograph.org.uk/photo/516871

The photos are about 20 years old, so there’s a chance this has changed, but I can’t see why it would change that significantly. Ta