Engineering work is taking place between Severn Tunnel Junction and Patchway, closing some lines on Monday and Tuesday evenings.
As a result, the 23:30 Cardiff Central to Bristol Temple Meads will start from Cardiff Central earlier than usual, at 23:29, and will call at Patchway and beyond approximately 5 mins later than normal.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner