I guess they are showing roads that cross onto private parcels, or maybe where the right of way becomes private. One example is the lower branch / original track of "West Mill Road" that enters the property boundaries of the Paradise Lakes campground. Another looks like Birches Rd which splits off from Moore's Meadow Rd and crosses private property on the cranberry farm there, although most of the road appears to be on public land. Moore's Meadow Rd itself has a gap in the public ROW in the middle and you can't drive through from Tuckerton/Carranza to 532, or vice versa, although they do not have that section colored light blue on the comparison map.