In message , penance
writes

The felling and pruning is performed by contractors, not the rail
company.
So you should take it up with them.

The contractors are working for the Railway Company and are probably
removing what they have been asked to do, it would be much better to
take it up with the Railway company.

It is also done for safety reasons,

Yes, and of course trees need to be kept back from the tracks etc., that
doesn't mean embankments necessarily have to be cleared felled.

so i think you might be better
putting your energy into a more worthy cause,

Railways embankments etc (like motorway cuttings and embankments). are
an important wildlife refuge esp. in urban areas, but also in rural
areas, esp. in those places where lots of hedges have gone as it is an
area moslty left alone, and where wildlife isn't much disturbed.

maybe the problems with
the caledonian forest, or the ever increasing softwood plantations that
decrease our native woodlands.

It's unusual for softwood plantations to be planted where there are
exisiting native woodlands
--
Chris French