Seven Norwich trains are among more than 70 which have been cancelled by Abellio Greater Anglia today, with autumn weather being blamed for the problems.
Two services - the 7.36am from Norwich to Yarmouth and the 8.17am from Yarmouth to Norwich - were stopped due to a woman fainting on a train this morning.
Paramedics were called to Hoveton and Wroxham station at around 7.15am, after a woman in her 20s, who was aboard the 6.31 from Sheringham to Norwich, fainted.
Six further trains in the region have been cancelled, with Greater Anglia citing train faults and more trains than usual requiring repairs at the same time as the reasons.
Many of its trains were forced to return to the depot for repair work after slipping on leaf-covered lines.
It's something that happens every year – but normally the rail companies are able to cope. This year up to 10 of Abellio's 26 diesel units have been away for treatment on any given day. It needs to have 21 available to run a full service.
The problem is this year there have been more leaves falling together – leaving Network Rail unable to keep the lines clear.
A spokeswoman said: 'We've had a very late autumn this year. Over a period of a couple of months, we normally see between 10 to 15% of leaf fall every week.
'Last week, we had more than 40%. We have been running extra rail cleaning trains and have extra staff out on track to keep things moving.'
The company could not cope with keeping the lines clear, and this had meant the number of diesel units which had suffered from wheel slips had been higher than anyone could remember.
Slippage pushes wheels out of alignment – requiring a visit to a the works and a specialist lathe to straighten them out.
These trains are among 71 cancellations made by Abellio Greater Anglia today.
A statement from Abellio Greater Anglia said: 'We apologise for the ongoing impact of train service cancellations on some local routes in Norfolk, Suffolk, Essex and Cambridgeshire.
'The problems are due to some of our diesel trains suffering wheel damage, as a result of poor rail conditions. This situation leads to excessive wear on the wheels which must be repaired before the trains can re-enter service.
'On average we are currently seeing two trains arrive back at the end of each day with wheel damage, more than double the rate we have experienced in previous autumn periods.'
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