Passengers travelling between Norwich and Cambridge suffered the worst punctuality in the region in February as one in five trains arrived late.
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.
Buses will replace trains on transport routes across Norfolk today (Sunday).
The first new Swiss-built train for Greater Anglia has arrived in the region - but it won't be travelling under its own steam just yet.
Rail users will be faced with nine days of disruption from this weekend as signalling system upgrades are carried out.