A green lane is an unsurfaced road (at least in the United Kingdom). Some may be open to vehicles, they would probably only be passable in a 4x4 vehicle (SUV), others are designated a bridleway[?].
... 178.5/km² (461.9/mi²). The racial makeup of the village is 73.63% White, 12.30% African American, 0.13% Native American, 6.05% Asian, 0.03% Pacific Islander, ...