Larry Lard wrote:
So the railway has /carte blanche/ to be as loud as it wants, whenever
it wants, and do whatever it wants, because it was there first?

No but it has a duty of care to carry its users in safety. Periodic
overnight maintenance is a perfectly reasonable component of fulfilling
this obligation. Occasionally this will cause local disturbance to
those who choose to reside within its vicinity.
--
gordon