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[?].
... in this plan, but, later that evening, Kitty rejects him in the expectation that Vronsky is about to propose to her.
The following morning Stiva and Vronsky are at the ...