This has now been updated to read:
Due to a fault with the signalling system at Didcot Parkway fewer trains are able to run on all lines.
Impact:
Train services running through this station may be cancelled, delayed by up to 60 minutes or revised. Disruption is expected until 17:00 18/04.
Customer Advice:
Road transport is being procured but due to school runs only a limited service is running.
Some trains running from Oxford to Reading will call at intermediate stations excluding Didcot Parkway. Customers travelling to Didcot from Oxford should circulate via Reading, or use what available Road Transport is in operation.
Additional Information:
GWR▸ tickets are being accepted between London Marylebone and Banbury/Oxford with Chiltern Railways, London Underground between Paddington and Marylebone, and with CrossCountry between Reading and Banbury.
I was travelling from Oxford to Didcot and circulated via Reading; this wasn't a good idea as once I got to Reading there were no trains to Didcot and of course there is no other public transport from Reading to Didcot.
When I got to Reading the stopping services were cancelled and the first fast service diverted via Newbury, the 2nd they refused to stop at Didcot although it was stopping at Swindon. I caught the 3rd service which was a fast to Oxford which was changed to a slow to Oxford and was of course a crowded 166 with 'air conditioning' ie hot day so not working. It took me 2 hours to get from Oxford to Didcot in the end, they should have advised passengers to catch the bus to Didcot and I wish I had done that.
And that example is why I hate certain stations automatically being missed during loss of some lines between Paddington and Didcot Parkway. Always delay the local passengers by 30+ minutes just so their precious fast long distance trains are not delayed by even a single digit number of minutes, rather than trying to keep all the passengers moving in some way.
I was quite lucky back in January (the last time I was caught up in
GWML▸ disruption), as it was only a 30-40 minute delay for me. The usual 6tph at Southall had gone down to 2tph (as Heathrow Connect and GWR Hayes & Harlington shorts were cancelled). Then one of the trains actually running skipped the station at 7 minutes late with no warning at all, just to prevent delaying a Heathrow Express train
. The following train was on time and luckily it actually stopped on the Up Main, with a really good
TfL» Rail station staff member managing to convince the driver to wait for everyone to get over the footbridge. I'm lucky I can easily take a different route in disruption, and really feel for everyone who has to wait an unknown amount of time because their station is not considered important enough (including a station with over 2.5 million passengers per year in my case...)