A 24-hour strike on the London Underground network by members of the Rail, Maritime and Transport (RMT) union, Transport Salaried Staffs Association (TSSA), and Unite started at 6.30pm on Wednesday 8th July 2015.
The strike will affect London Underground services from early evening on Wednesday 8th July 2015 to the end of service on Thursday 9th July 2015.
Chiltern Railways are advising that services are likely to be affected on the route between London Marylebone and Aylesbury via Amersham and at London Underground managed stations which they serve.
While the Birmingham – Banbury – High Wycombe – London Marylebone line will operate as normal (including services to Aylesbury via High Wycombe) trains are likely to be busier than normal. Wherever possible additional carriages will be added to support the expected increased passenger volumes.
Further information on the the services being run by Chiltern Railways during the strike action on the London Underground, including revised timetables are available on the Chiltern Railways website.