Chiltern Railways will be introducing a leaf fall timetable on Sunday 2nd October 2016 for services to and from London Marylebone.
During leaf the fall season trains running to London Marylebone on the Aylesbury (via Amersham) line will depart 3 minutes earlier than usual. On this line the leaf fall timetable will run until Friday 23rd December 2016.
Trains running on the Kidderminster/Birmingham/Banbury/Oxford/High Wycombe to London Marylebone line may arrive at their final destination up to 3 minutes later than scheduled. On this line the leaf fall timetable will run until Saturday 10th December 2016.
Further information can be found on the Chiltern Railways website.