Bus replacement services and transfers will be in place for rail users travelling between Mallow and Cork to the Guinness Cork Jazz Festival.
There will be disruption to services from Saturday, October 16 to Tuesday, October 26 between Cork and Mallow in both directions on the Cork/Dublin Heuston train.
It's as a new €8m signalling system is being put in place at Kent Station, along with essential track works.
Bus transfers will also operate on Cork/Tralee services.
Revised departure times for bus transfers will be in place and the 6.15am Cork to Heuston departure on weekdays will not operate.
From Saturday, October 23 to Tuesday, October 26, Cork to Cobh and Cork to Midleton services will be suspended with a bus replacement