Engineering works are set to cause chaos for those travelling on Chiltern Railways at the weekend.

Customers travelling on September 14 and 15 are being warned that due to Network Rail engineering works in the Haddenham and Thame Parkway area, together with HS2 preparation works at West Ruislip, the line between Marylebone and Bicester will be closed at multiple locations.

Chiltern Railways said all journeys on the line will be affected and a "heavily amended" timetable will be in place.

Chiltern Railways train services will operate as follows (in both directions):

  • 1 per hour Oxford - Banbury - stations to Birmingham Moor Street.
  • 1 per hour Bicester North - Banbury - stations to Birmingham Moor Street.
  • 2 per hour Oxford - stations to Bicester Village.
  • 2 per hour Gerrards Cross - stations to Princes Risborough (1 per hour)/Aylesbury (1 per hour).
  • Periodic service Leamington Spa - stations to Stratford Upon Avon.
  • Periodic service Leamington Spa - stations to Birmingham Moor Street.
  • 2 per hour Marylebone - Aylesbury Vale Parkway (via Amersham).
  • 2 per hour Marylebone - Aylesbury (via Amersham).

Rail Replacement bus services will operate as follows (in both directions):

  • 2 per hour Aylesbury Vale Parkway - Bicester Village.
  • 1 per hour Aylesbury Vale Parkway - Bicester North.
  • 1 per hour Princes Risborough - stations to Bicester North.
  • 2 per hour High Wycombe - Amersham.
  • 2 per hour Gerrards Cross - stations to West Ruislip (London Underground connections).
  • Arriva 280 scheduled service Haddenham & Thame Parkway - Aylesbury.

Customers may need to travel on other operator's services, via rail replacement buses, and/or on London Underground services.

Passengers are being advised to allow extra time for their journey, check their journey before travelling, buy tickets in advance online or on the app to guarantee the best value fare.

For more details, go to www.chilternrailways.co.uk.