LONDON OVERGROUND: Sunday 19 January, no service between Sydenham and Crystal Palace. Use local London Buses connections. Rail replacement buses also operate between Balham and West Croydon via Crystal Palace and Norwood Junction.
LONDON OVERGROUND: Saturday 18 and Sunday 19 January, no service between Gospel Oak and Barking, replacement buses operate between Gospel Oak and Seven Sisters and between Walthamstow Central and Barking. Use London Underground Victoria line connections between Seven Sisters (for South Tottenham), Blackhorse Road and Walthamstow Central.
Replacement Buses operateService J: Gospel Oak (Highgate Road) - Upper Holloway - Crouch Hill (Hornsey Road) - Finsbury Park Underground - Harringay Green Lanes - South Tottenham (For Seven Sisters)Service T: Walthamstow Central (For Walthamstow Queens Road and connections to Victoria line / London Overground Chingford line) - Leyton Midland Road - Leytonstone High Road (Harrow Green) - Wanstead Park - Woodgrange Park - East Ham (for District line connections, set down eastbound, pick up westbound) - Barking