CHILTERN Railways passengers in Oxfordshire are being warned to expect heavy disruption this weekend.

Network Rail engineering works mean the line through Beaconsfield is closed throughout today and tomorrow, with a heavily-amended timetable on all of the operator's routes.

The company has said journey times will be 'considerably longer' than usual, with HS2 preparation works at West Ruislip also taking place this weekend.

A statement on the Chiltern Railways website added: "Passengers may need to travel via alternative routes, on other operator's services, London Underground services and/or rail replacement bus services."

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There will be one service per hour between London Marylebone and Birmingham Moor Street, which calls at Bicester North and Banbury. This route will be diverted via Aylesbury.

Meanwhile, there will be two services per hour between High Wycombe and Oxford.

A rail replacement bus service will operate in both directions between Aylesbury Vale Parkway and Bicester Village.

Selected Chiltern Railways train services in both directions on May 11 and 12:

  • One per hour Marylebone - Bicester North - Banbury - stations to Birmingham Moor Street (diverted via Aylesbury).
  • One per hour High Wycombe - stations to Birmingham Moor Street.
  • Two per hour High Wycombe - stations to Oxford.

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Selected rail replacement bus service in both directions on May 11 and 12:

  • Two per hour Aylesbury Vale Parkway - Bicester Village.

For more information and a full amended timetable visit