Disruptions & planned work

Engineering work is taking place between Neath and Swansea, closing some lines overnight. The following services are affected: Monday to Thursday: 21:48 London Paddington to Swansea service will terminate at Neath 22:49 London Paddington to Swansea service will have its journey time extended by 5 minutes between Bristol Parkway and Newport, and terminate at Neath Rail replacement buses will run from Neath to Swansea. Tuesday to Friday: 03:46 Swansea to London Paddington service will start from Neath at 04:14. A rail replacement bus will from Swansea to Neath, departing Swansea at 03:46 Check before you travel: You can plan your journey using the National Rail Journey Planner . Replacement bus travel advice: For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page . You can find the pick-up and drop-off location of rail replacement services by checking station signage or by searching for your station on our Find a Station page . Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.

From 26 Oct 2026, 00:00 · Until 30 Oct 2026, 23:59 · Source changed 13 Oct 2026, 12:26

Operators: Great Western Railway

Engineering work is taking place between Cardiff Central and Bridgend, closing some lines overnight from Monday evening until Friday morning. Monday to Wednesday: The 20:48 London Paddington to Swansea service will be diverted to run via Ninian Park, and will call at Bridgend and beyond a few minutes later than usual. Monday to Thursday: The 21:48 and 22:49 London Paddington to Swansea services will be diverted to run via Barry, and will call at Bridgend and beyond up to 25 minutes later than usual. Tuesday to Friday: The 03:46 Swansea to London Paddington service will start earlier than usual at 03:39, and will call at Neath, Port Talbot Parkway and Bridgend slightly earlier than usual. It will then divert between Bridgend and Cardiff Central to run via Barry, before departing Cardiff Central and beyond at the normal times. Check before you travel: You can plan your journey using the National Rail Journey Planner .

From 14 Dec 2026, 00:00 · Until 18 Dec 2026, 23:59 · Source changed 8 Oct 2026, 19:25

Operators: Great Western Railway

Engineering work is taking place between Cardiff Central and Bridgend, closing some lines overnight from Monday evening until Friday morning. Monday to Thursday: The 20:48 London Paddington to Swansea will divert between Cardiff Central and Bridgend (via Ninian Park) calling at Bridgend and beyond a few minutes later than normal. The 21:48 and 22:49 London Paddington to Swansea will divert between Cardiff Central and Bridgend (via Barry) calling at Bridgend and beyond later than normal. Tuesday to Friday: The 03:46 Swansea to London Paddington service will be amended to start from Swansea earlier than usual at 03:38, and will call at Neath, Port Talbot Parkway and Bridgend earlier than usual. It will then divert to run via Barry, and will then depart Cardiff Central at the normal time. Check before you travel: You can plan your journey using the National Rail Journey Planner .

From 16 Nov 2026, 00:00 · Until 20 Nov 2026, 23:59 · Source changed 8 Oct 2026, 12:24

Operators: Great Western Railway

Engineering work is taking place between Bridgend and Baglan, closing some lines. The 07:55 Swansea to London Paddington service will start from Cardiff Central at 09:00. A rail replacement bus service (departing 07:50) will run directly from Swansea to Cardiff Central. An additional bus service will run between Swansea and Cardiff Central, calling at Neath and Port Talbot Parkway. Check before you travel: You can plan your journey using the National Rail Journey Planner . Replacement bus travel advice: For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page . You can find the pick-up and drop-off location of rail replacement services by checking station signage or by searching for your station on our Find a Station page . Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.

From 20 Dec 2026, 00:00 · Until 20 Dec 2026, 23:59 · Source changed 28 Sept 2026, 15:00

Operators: Great Western Railway

Engineering work is taking place between Port Talbot and Swansea, closing some lines. As a result, the 23:20 Cardiff Central to Carmarthen service will be diverted after Port Talbot Parkway, and will not call at Baglan, Briton Ferry, Neath, Skewen, Llansamlet, Swansea or Gowerton. Two replacement buses will run: From Port Talbot Parkway to Carmarthen, calling at Neath, Swansea and Llanelli From Port Talbot Parkway to Carmarthen, calling at Baglan, Briton Ferry, Neath, Skewen, Llansamlet, Swansea, Gowerton, Llanelli, Pembury & Burry Port, Kidwelly and Ferryside Check before you travel: You can plan your journey using the National Rail Journey Planner . Replacement bus travel advice: For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page . You can find the pick-up and drop-off location of rail replacement services by checking station signage or by searching for your station on our Find a Station page . Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.

From 26 Oct 2026, 00:00 · Until 29 Oct 2026, 23:59 · Source changed 16 Sept 2026, 12:39

Operators: Transport for Wales

Engineering work is taking place between Bridgend and Baglan, closing some lines. The 07:55 Swansea to London Paddington service will start from Cardiff Central at 09:00. A rail replacement bus service will run between Swansea and Cardiff Central, departing earlier at 07:50. Another bus will run between Neath, Port Talbot Parkway, Bridgend and Cardiff Central. Check before you travel: You can plan your journey using the National Rail Journey Planner . Replacement bus travel advice: For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page . You can find the pick-up and drop-off location of rail replacement services by checking station signage or by searching for your station on our Find a Station page . Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.

From 25 Oct 2026, 00:00 · Until 25 Oct 2026, 23:59 · Source changed 16 Sept 2026, 11:47

Operators: Great Western Railway

Engineering work is taking place between Hertford East and Broxbourne, closing all lines. Background information on the work can be found below. All week, buses will replace trains between Hertford East and Broxbourne. Background information: A burst Thames Water sewer pipe flooded the tracks through Rye House station in December 2025, closing the line for nearly a week. Some repairs were made to the railway infrastructure at the time, but extensive work is now needed so the route is fit for the future. This October, railway engineers will be completely replacing 1km of rails, sleepers and ballast (the stones underneath the track). At the same time as the track replacement is taking place, engineers will use the opportunity to finish upgrading platform 1 at St Margarets station. The platform structure will be repaired, followed by full resurfacing. More details and comment on this project is available on the Network Rail website . Check before you travel: You can plan your journey using the National Rail Journey Planner . Replacement bus travel advice: For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page . You can find the pick-up and drop-off location of rail replacement services by checking station signage or by searching for your station on our Find a Station page . Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.

From 19 Oct 2026, 00:00 · Until 25 Oct 2026, 23:59 · Source changed 16 Sept 2026, 11:09

Operators: Greater Anglia

Engineering work is taking place overnight between Port Talbot Parkway and Swansea, closing some lines. Wednesday and Thursday: The 21:48 and 22:49 London Paddington to Swansea will terminate at Port Talbot Parkway. A replacement bus service will run from Port Talbot Parkway to Neath and Swansea. Road journey times: Port Talbot Parkway-Neath 15 minutes; Neath-Swansea 22 minutes. Thursday and Friday: The 03:46 Swansea to London Paddington will start from Port Talbot Parkway at 04:05. An earlier replacement bus will depart at 03:18 from Swansea and Neath 03:40 to Port Talbot Parkway to connect into the train. Check before you travel: You can plan your journey using the National Rail Enquiries Journey Planner . Replacement bus travel advice: For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page . You can find the pick-up and drop-off location of rail replacement services by checking station signage or by searching for your station on our Find a Station page . Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.

From 2 Dec 2026, 00:00 · Until 4 Dec 2026, 23:59 · Source changed 7 Sept 2026, 10:49

Operators: Great Western Railway

Engineering work is taking place between Cardiff Central and Bridgend, closing some lines overnight from Monday evening until Friday morning. Monday to Thursday: The 20:48 London Paddington to Swansea service will be diverted to run via Ninian Park, and will call at Bridgend and beyond a few minutes later than usual. The 21:48 and 22:49 London Paddington to Swansea services will be diverted to run via Barry, and will call at Bridgend and beyond up to 25 minutes later than usual. Tuesday to Friday: The 03:46 Swansea to London Paddington service will start earlier than usual at 03:38, and will call at Neath, Port Talbot Parkway and Bridgend slightly earlier than usual. It will then divert between Bridgend and Cardiff Central to run via Barry, before departing Cardiff Central and beyond at the normal times. Check before you travel: You can plan your journey using the National Rail Enquiries Journey Planner .

From 19 Oct 2026, 00:00 · Until 23 Oct 2026, 23:59 · Source changed 27 Jul 2026, 11:27

Operators: Great Western Railway