The timetable affects Chiltern Railway trains

In the past, the only solution had been to cut down trees close to railway lines, but trains were still slipping on the tracks.

Now Chiltern Railways has introduced a leaf fall timetable but admit passengers will still be delayed.

It will run until 13 December and means trains will arrive three minutes later than their expected time.

Managing director Adrian Shooter said: "What we say to all our drivers is just to take it a little bit more carefully.

"So we put a bit more time into the timetable."

Braking systems can be affected by the leaves and it also causes rail delays for commuters.

But cutting down trees close to the lines was an expensive and short term solution to the problem.

However, the new timetable will still mean longer journeys and more delays for passengers.