thanks - so the owners get paid and then a refund if not needed? Seems a bit of a legal palaver!
Probably better thinking of it along the lines of renting it, on a non rail project the deal was the price of the lost income to the farmer for that bit of field for the season in which it was out of use, on the understand that the top soil was returned in a good state.
It appeared to a standard deal and nothing special in terms of the legals.