Well, we're in the territory of very wild speculation here but Wales in the 19th century was an extractive economy, largely producing raw materials for processing and use elsewhere. That's why the important exchange in Cardiff was the Coal Exchange not a stock exchange and why, with a few exceptions like Brown Lennox in Pontypridd, Wales didn't really have a heavy engineering or manufacturing base until the mid 20th century.
[snip]
This isn't a political point, merely a statement of the obvious. The economy of Wales developed as part of a wider England & Wales / UK / British Empire economic system. An independent or semi-independent country with its own government, banks, exchanges etc would have developed differently. Not necessarily better, but differently.
Even if Wales had been independent in 1800, I suspect the development would have been pretty similar,
@Tomos y Tanc : the resources and the geography would have been the same, and the economic logic similarly remorseless.
But on the narrow question of Carmarthen - Aber, I did a bit of Boxing Day digging and came up with this comparison:
Gerald:
Bangor - Cardiff, 204m 42ch (via Railmiles); 3h 56m, average speed 52.0 mph
Wales West Coast Route (WWCR)
Cardiff - Carmathen, 74m 55ch (Railmiles); fastest I could see was 1h 40m; av sp 44.8 mph
Carmathen - Aber, 54m 54ch (
Mott McD report); 1h 20m*; av speed 42.5 mph
Aber - Dovey Junction - Penychain, 67m 03ch (Railmiles); 2h 25m; av speed 27.7 mph
Afon Wen - Bangor, 27m 60ch, (1949 timetable, Disused Stations); fastest I could see in 1949 was 1h 12m; av speed 23.1 mph
Cardiff - Bangor (via Carmathen) 226m 12ch, 6h 37m, av speed 34.2 mph
So for the WWCR to match the existing Gerald timings, it would need to average 57.5 mph. Now, presumably "Gerald of the West" would cut out a lot of stops that these timings include: Cardiff - Swansea - Carmarthen - Aberystwyth (reverse) - Dovey Junction (reverse)** - Porthmadog - Bangor (reverse) - Holyhead. Such a timing is surely possible given enough political will & cash, but the costs would surely be vast: forgive me for thinking that it is telling that the Mott McD report shows that a short burst of 75 mph running north of Lampeter apart, Camarthen - Aber would be a 50/65mph railway (Mott-McD p59).
So let's assume that station stops cost 3 mins of running time and reversals 5 (??
@ChiefPlanner /
@Bald Rick ), and the linespeeds allowed it (I've not got a sectional appendix), and the Afon Wen - Bangor rebuild results in linespeeds the same as for Carmathen - Aber, then WWCR Cardiff - Swansea - Carmarthen - Aberystwyth (reverse) - Dovey Junction (reverse)** - Porthmadog - Bangor would look thus:
Cardiff - Carmathen, 74m 55ch (Railmiles); 1h 22m; av sp 54.6 mph (I'm not sure how much faster the SDL would be?)
Carmathen - Aber, 54m 54ch (
Mott McD report); 1h 8m; av speed 52.3 mph
Reverse 5 mins
Aber - Dovey Junction - Penychain, 67m 03ch (Railmiles); 1h 21m; av speed 49.6 mph (incl a stop at Porthmadog and reversal at Dovey Junc)
Afon Wen - Bangor, 27m 60ch; 0h 32m; av speed 52.3 mph
Cardiff - Bangor (via Carmathen) 226m 12ch, 4h 28m, av speed 50.6 mph
This (presumably optimistic) best case would be 4h 28m -- 34m more than Gerald today. I know this is all back of an envelope, but it seems like a great deal of money to go more slowly than the "slingshot" that people seem to be objecting to. If (when!) electrification reaches Carmathen including via the SDL, then if the Cardiff-Carmathen section is largely 90/100mph (?, one hopes) then WWCR *could* be quicker than Gerald is today. But the incremental pound would surely be much more effectively spent on the Marches line?
* Mott-McD p60 using Class 185s. No idea what this would look like with 802s; probably not much different, given the low line speeds.
** I'm assuming that no-one is seriously proposing an "Aberdovey cut-off" with an elegant curving bridge across the mouth of the Afon Dyfi.....