Engineering work is taking place overnight between Alexandra Palace and Stevenage via Welwyn Garden City., closing some lines.
From approximately 23:59 on Sunday to Thursday evenings and until approximately 05:10 on Monday to Friday mornings, buses replace trains between Alexandra Palace and Stevenage via Welwyn Garden City.
Trains between London Kings Cross and Cambridge / Peterborough will divert non-stop via Hertford North, with extended journey times.
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 set-down 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.