Rail passengers on the Wherry lines are facing nine days of disruption as some services are suspended as part of the next phase of works to upgrade the signalling systems and track.
Passengers travelling between Norwich and Cambridge suffered the worst punctuality in the region in February as one in five trains arrived late.
Rail passengers in some parts of Norfolk and Suffolk will find themselves on roads, rather than tracks, due to trains being replaced by buses.
Rail passengers will face nine consecutive days of disruption with the suspension of trains from Norwich to Great Yarmouth and Lowestoft.
Rail bosses have outlined a bold new vision for the East Anglian network over the next 25 years at a major transport conference in Ipswich.
A new plan to help rail services in Norfolk and Suffolk cope with extreme weather and avoid the scale of during last year's Beast from the East disruption has been drawn up.
Sky-high fares, an unreliable service, and cheaper alternative transport options are all being blamed for a significant drop in rail passengers in Great Yarmouth over the last five years.
More trains than ever are being delayed or cancelled on East Anglia's rail network as repeated pledges to improve services fall flat.
Rail travellers in Norfolk and Suffolk are facing disruption, with train faults causing cancellations and delays.
Train services on the Ipswich to Lowestoft line have been "severely disrupted" due to signalling problems.
Train operator Greater Anglia is undertaking a trial with its team of land sheriffs that could prevent hours of delays in East Anglia.
Rail passengers are facing more disruption, with delays and cancellations.
A number of trains have been cancelled between Norwich, Ipswich and London this morning.
Rail company Greater Anglia is phasing out paper tickets for season ticket holders - replacing them with plastic smart cards that can be swiped at barriers.