text: There's a physical separation between the road and the cycleway at that point, albeit by only a half metre wide bit of dirt.  See http://www.mapillary.com/map/im/HUfMwU-MpuPzLXgYMV6aNQ/photo and http://www.mapillary.com/map/im/mDkAvaitstd_tx3qsumbYw/photo.  It's certainly not a wheelchair accessible place to cross, but then again I doubt the footpath is traversable by wheelchair anyway.
  
  I'd prefer not to tag a crossing where there isn't even a drop curb.  Perhaps mapping the access to the field, as seen in http://www.mapillary.com/map/im/owbx9ki3qIJoXon0rsJXsQ/photo, which has a drop curb will give routers another option.