As far as I know( last time I( used the line was in May this year)
I have seen no signals (colour light or semafor) while traveling over that line at lest twice a year since 2009.
Capacity I think is still a problem which I'm sure could be resolved by more passing loops.
There is space to re-enstate these & "IF" done a better service could be run(one each way per hour instead of one every two hours.
And a freight service could be run if a need could be prooved.
P.S. have used the road from Shrewsbury through Welshpool to visit my mother who lives near Tywyn and it can be a slow journey if you get behind a HGV.
