20th October 2019

Due to Network Rail engineering works in the Haddenham & Thame Parkway area, together with HS2 preparation works at West Ruislip, the line between Marylebone and Bicester is closed at multiple locations. 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.

Passengers travelling between London - Banbury and north thereof are advised to travel to/from London PADDINGTON via Oxford using GWR services, in both directions.

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.

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