Well subsidence is part of it I quess though extremely unlikely this is at the local Uni, these buildings were built with massive foundations don't believe there's a tree alive that could influence the sub grade under these suckers!!
No its mostly aimed at providing them with a 5yr management plan for the trees near their buildings to allow them to budget for current and future works as well as eliminate any immediate problems esp self sown trees whilst they are small.
It just all takes time and after about 300 trees your mind starts going numb...so I'm trying to assist that process
