22nd September 2019

Due to Network Rail engineering works, the line through Beaconsfield is closed all day, together with with HS2 preparation works at West Ruislip. A heavily-amended timetable will operate on all Chiltern Railways routes, and most journeys will be affected. Passengers may need to travel via alternative routes, on other operator's services, London Underground services and/or rail replacement bus services. Journey times will be considerably longer than usual.

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

• 1 per hour Marylebone - Bicester North - Banbury - stations to Birmingham Moor Street (diverted via Aylesbury).
• 1 per hour High Wycombe - stations to Birmingham Moor Street.
• 2 per hour High Wycombe - stations to Oxford.
• 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).
• 1 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.
• 2 per hour High Wycombe - Amersham.
• 4 per hour High Wycombe - stations to Hillingdon/West Ruislip (London Underground connections).
• 1 per hour Princes Risborough - stations to Aylesbury.

For full details, please refer to the PDF timetable/s and summary route map published below: