Engineering work is taking place in the Tottenham Hale area, closing all lines overnight from Sunday evening until Friday morning.
Between 23:15 on Sunday and 04:55 on Monday, and also between 23:20 (Monday to Thursday) and 05:00 (Tuesday to Friday), trains that usually run via Tottenham Hale will be diverted to run via Seven Sisters instead.
Stations on the Tottenham Hale line are only a short distance from those on the Seven Sisters line. You can view maps that show routes between these stations on the Greater Anglia website.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner