December TT is supposedly a big one.Expect lots of splitting and joining at Swansea then since the December timetabe shows lots of the odd-hour (ie. non-LHCS) Manchesters running through to/from Pembrokeshire. The 07:30, 09:30, 11:30, 13:30, 15:30 departures from MAN are all shown as Pembrokeshire trains with the 17:30 terminating at Carmarthen. In the other direction, the 11:13 arrival at MAN comes from Carmarthen with the 13:13, 15:13, 17:13 and 21:13 all starting from Milford Haven and the 19:15 from Fishguard Harbour.
I’m sure the internal call with the planning director said that they’ve moved a lot of the attaching and joining to Swansea as it’s less vulnerable to passing on issues and there will be more time allowance for it there.
To go with that every mainline train in southwales is adjusted in some way or shape.