I posted what appears to be the answer about five minutes after first you asked what it meant.
And 166s are on the move to Bristol today with more to follow on Wednesday - see https://www.railforums.co.uk/threads/gwr-turbo-cascades-to-bristol-region-services.146681/page-14
If people weren't confident about the extension of electric operation to Didcot as planned, those dmus would be staying at Reading.
And 166s are on the move to Bristol today with more to follow on Wednesday - see https://www.railforums.co.uk/threads/gwr-turbo-cascades-to-bristol-region-services.146681/page-14
If people weren't confident about the extension of electric operation to Didcot as planned, those dmus would be staying at Reading.