Now....everyone here knows I like my trees..............but I'm looking at this........I'm looking at the distance between the trees and the catenary and thinking this doesn't seem like the wisest thing ever.
The species selected (its a bit hard to tell, but don't seem to be columnar in form (straight up/down). So it appears, if these do well, that there will be a need for fairly constant and aggressive pruning.
Now, look at the space here......Separated cycle track anyone?; maybe just an MUP on the north side, which could have a had a row of trees separating it from the road which would not require aggressive cutting.
Alternatively, if one felt the surplus space had to go beside the rails, I think I would have gone for shrubs that give great fall colour and are lower maintenance.