hi I was out today on my dirt bike.
At the exact lower point of the blue marker until the left turn about 40m away horizontally this is not a connecting road. It is a small very old footpath cut into the side of a very steep hill. It has been further damaged by water erosion.It is impassable by car or motorcycle.Nearby there are footpath signs guiding hikers in another direction. The small piece would be dangerous to even walk.
It would be better represented on the map as the white road ending at the lower point of the blue marker until the road turns left 
 In addition the farmer has chained it off probably because it would be a danger to hikers choosing the wrong route 