Engineering work is taking place between Hertford North / Stevenage and Letchworth Garden City, closing all lines.
No trains will run between Stevenage and Letchworth Garden City / Cambridge.
Trains between London Kings Cross and Peterborough will be unable to call at Hitchin or Arlesey.
Buses replace trains between:
The 03:23 Peterborough to London Kings Cross service will not be able to call at Arlesey or Hitchin. A rail replacement bus will run between Biggleswade and Stevenage to provide connections.
The 04:24 Stevenage to London Kings Cross service will start from Hertford North at 04:36. A rail replacement bus will run from Stevenage at 04:04 to Hertford North, connecting with the train.
You can plan your journey using the National Rail Enquiries Journey Planner.
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.