A bit confused in what you are actually after as the cometary is actually Abbey Lane Cometary , Hutcliffe Wood is the name given to the crematorium and garden of remembrance , however:
Abbey Lane Cometary is off abbey lane but if the area you want is the top end end then it is best approached using the entrance to the complex off Hutcliife Wood Road - if approaching from town it is just after the bend .
If you are wanting the Crematorium or garden of remembrance then use hutcliffe wood road
If you are attending a cremation then the best way to approach it (if you are in a vehicle) is the road next to the sheaf pub on fraser road - at the bottom end near the laycocks sports ground (This road may be called perriwood road on older maps it is known as camping lane)
The garden of remembrance can also be accessed from the crem car park but it is a up hill walk which can be difficult for some people
NOTE: There is no vehicle exit from the complex to fraser road its one way into the complex
Hope this helps