I've actually not seen any extra carriages on any rush hours trains from Maidenhead that I have travelled on.. I did ask via Facebook and FGW▸ on there (thanks Jo and Olllie) also weren't able to get someone to give them that information.. It does make me wonder where the extra carriages are... I am pretty sure they aren't on Maidenhead Rush hour trains... But I can't tell for sure..
Just to follow up on my post from last night, I did a bit of research regarding seating increases on the Maidenhead to Paddington route this morning, compared with a morning early last December before any of the additional carriages and trains had arrived. It includes all services timed to arrive at Paddington between 06:30 and 10:30. As far as I know both mornings were free of disruption and short formations. I know Maidenhead commuters are mostly interested in the fast services, but I've also included the slow services as well in a separate table as they are critical at stations further down the line.
Fast services (those that take 30 minutes or less):06:10dep 06:36arr Now: 5 Was: 3
(Now a Class 180, so actual seating remains roughly the same)06:31dep 06:54arr Now: 5 Was: 4
06:43dep 07:08arr Now: 8 Was: 8
(Now a HST▸ with 5x Standard Class - same amount)07:03dep 07:29arr Now: 6 Was: 5
07:08dep 07:30arr Now: 8 Was: 7
(Now a HST with 6x Standard Class - increase of 1)07:18dep 07:43arr Now: 5 Was: 3
07:31dep 07:57arr Now: 5 Was: 5
08:00dep 08:26arr Now: 8 Was: 8
(Now a HST with 6x Standard Class - increase of 1)08:04dep 08:28arr Now: 4 Was: 3
08:34dep 08:58arr Now: 5 Was: 3
(Now a Class 180, so actual seating remains roughly the same)09:03dep 09:27arr Now: 3 Was: 3
So, on the fast trains that's an increase in the total number of carriages by
10 from 52 to 62. If you remove the extra Class 180 carriages as they don't add anything to the capacity (although they do to the general comfort!) then it's an increase of
6 carriages, which I estimate equates to a total of
530 extra seats each morning peak.
Slow services:05:53dep 06:31arr Now: 2 Was: 2
05:58dep 06:46arr Now: 3 Was: 3
06:21dep 07:09arr Now: 3 Was: 3
06:29dep 07:17arr Now: 3 Was: 3
06:46dep 07:32arr Now: 4 Was: 3
06:53dep 07:44arr Now: 6 Was: 3
07:13dep 07:49arr Now: 5 Was: 3
07:17dep 08:04arr Now: 6 Was: 3
07:24dep 08:16arr Now: 5 Was: 5
07:41dep 08:21arr Now: 5 Was: 5
07:45dep 08:32arr Now: 6 Was: 6
07:49dep 08:36arr Now: 5 Was: 5
(Used to depart at 07:54 and arrive at 08:47)08:11dep 08:48arr Now: 5 Was: 3
(Now a Class 180, so actual seating remains roughly the same)08:26dep 09:16arr Now: 5 Was: 4
08:41dep 09:21arr Now: 3 Was: 3
08:45dep 09:35arr Now: 3 Was: 3
09:17dep 10:03arr Now: 5 Was: 3
09:35dep 10:18arr Now: 4 Was: 3
On the slow trains that's an increase in the total number of carriages by
15 from 63 to 78. If you remove the extra Class 180 carriages as they don't add anything to the capacity then it's an increase of
13 carriages, which I estimate equates to a total of
1100 extra seats each morning peak.
So, a total of over 1600 seats each weekday morning from Maidenhead to Paddington, including two extra Standard Class carriages spread over the three HST operated services - just shows the scale of the capacity problem if regular commuters still perceive no difference!