Future engineering work

PAGE LAST UPDATED: 23/01/2019 07:34. Update now

See details of routes affected by planned engineering works, including when they take effect, maps of the affected area, alternative timetables, advice for alternative travel and real-time updates.

Buses replace trains between Great Missenden and Aylesbury Parkway on Sunday 25 November until approximately 18:00

Start date
25/11/2018  00:00
End date
Route affected
Download map of route afected

Between London Marylebone and Aylesbury / Aylesbury Parkway

TOC(s) affected
Chiltern Railways

Network Rail are undertaking work on the viaduct between Wendover and Aylesbury, resulting in all lines being closed until approximately 18:00.

Until approximately 18:00, buses will replace trains between Great Missenden and Aylesbury Parkway. Trains will operate between London Marylebone and Great Missenden.

The first trains to run are:

  • 17:27 London Marylebone to Aylesbury
  • 17:57 London Marylebone to Aylesbury Vale Parkway
  • 18:15 Aylesbury to London Marylebone 
  • 19:10 Aylesbury Vale Parkway to London Marylebone

Check before you travel:

You can plan your journey using the National Rail Enquiries Journey Planner

You can find the location of your bus replacement by checking station signs or by searching for your station on our station information pages


Non folding bicycles are not allowed on rail replacement bus services at any time. Folding bicycles are allowed if fully folded. For more information, please see here.

Project Information:

You can read more about engineering work and why it is necessary.