The Oxford Upgrade work to remodel the track and reduce congestion and delays around Oxford starts this Saturday 7 July. It is an extensive piece of work and will mean line closures and diversions through to Sunday 22 July. There will then be a further weekend line closure on 28 and 29 July.
More details including diversionary routes, bus times and alternative car park arrangements are on our dedicated Oxford upgrade web page https://www.gwr.com/travel-updates/planned-engineering/oxford2018
We have used social and traditional media, on board and at station messages, staff at stations and on trains to alert customers, and we will have extra staff on hand to help throughout the line closure.