Is it my imagination, or does the Greenford service get cancelled / cut back an awful lot more than the other Thames Valley branches - Windsor, Marlow and Henley?
It's because the Greenford's run through to Padd, when there are problems it is easy to take them out to free up paths, when the bay get built at West Ealing as part of the Crossrail work then Greenford's will shuttle back and forth just like the Windsor's, Marlow and Henley's do, capping these branches during the day would only release drivers and not train paths on the relief lines