Engineering work is taking place between Stevenage / Hertford North and Biggleswade / Letchworth Garden City / Royston / Cambridge, closing some lines.
From approximately 22:45 on Sunday evening until the end of service, buses will replace trains between Hertford North and Stevenage, and between Stevenage and Letchworth Garden City / Royston / Cambridge.
Trains will be unable to call at Hitchin or Arlesey. Replacement bus services will operate between Stevenage and Arlesey, and between Hitchin and Biggleswade.
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 information, please use our travel information pages.
You can find the location of your replacement bus by checking station signs or by searching for your station on our station information pages.
Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.