Great Western Coffee Shop

I stumbled across this NR document - well, Google did really - which has some interesting specific dates in it. Here are the latest one (December 2021) (https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwj4utCN8OTtAhUFUhUIHcjxAhAQFjAAegQIAxAC&url=https%3A%2F%2Fwww.networkrail.co.uk%2Fwp-content%2Fuploads%2F2020%2F09%2FCalendar-of-events-and-supporting-information-December-2021.pdf&usg=AOvVaw1Vs_4paqdhsgCdpDUvICfG) and the previous one (May 2021) (https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwj4utCN8OTtAhUFUhUIHcjxAhAQFjABegQIBBAC&url=https%3A%2F%2Fwww.networkrail.co.uk%2Fwp-content%2Fuploads%2F2020%2F05%2FCalendar-of-events-and-supporting-information-May-21.pdf&usg=AOvVaw2EoydsmxcjTkCUwcMOqMp3) are both visible - the oddly futuristic dates tells you it's partly about timetabling. ("ESG" is Event Steering Group.)

There's a bit of pre-understanding called for as to what an "event" might be in this context, and what the "Systems Operator" function within NR is. This is their strategic business plan (https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiH_-D58uTtAhU9UBUIHXzgBi4QFjACegQIARAC&url=https%3A%2F%2Fwww.networkrail.co.uk%2Fwp-content%2Fuploads%2F2019%2F06%2FStrategic-Plan-System-Operator.pdf&usg=AOvVaw37B3f84yyRSrkYQO0MbPG5).

To pick just a couple of examples, against May 2021 it says:
"Okehampton to Exeter St. Davids 0.5tph weekday service"

And for May 2022 it says:
"Final phase of North Downs line service increase
1tph Reading -Gatwick Airport (increase to 3tph)
Change impacts 3 Routes interacting with 3 Main Lines into London"
and links this firmly to the closure of Gatwick P5-6 for widening, with the extra trains delayed until that's done.