Transport for Wales are completing a number of planned improvement works on their services and lines.
This may cause some disruption to your journey including rail replacement services.
Please visit the Transport for Wales website to see full details of these service changes on the date you wish to travel. These may be subject to change, so please check the information carefully close to planner journey time.
You can also see an overview on major December engineering works here, but please note that this does not include all planned improvement works.