Major track works are set to begin on rail lines in Co Cork this weekend.
Iarnród Éireann is set to commission a new signalling system, controlling services in Kent Station and the approaching lines.
Essential works will take place at a number of locations between Mallow and Cork.
The €8 million signalling project will replace a mechanical signalling system with a modern, computer controlled "solid state interlocking system".
This is expected to improve punctuality and enhance the safety of rail services, as well as facilitating future track layout modifications for the Cork Commuter rail service improvements planned under the Cork Metropolitan Area Transport Strategy (CMATS).
A further €4 million will be invested in track improvement works during this time.
From Saturday 16 October to Tuesday 26 October inclusive, rail services will be suspended between Cork and Mallow.
There will be bus transfers between Cork and Mallow in both directions on Cork/Dublin Heuston services and Cork/Tralee services.
There will be a bus replacement service for Cork to Mallow services.
The 6.15am service from Cork to Heuston will be cancelled on weekdays and there will be revised departure times for bus transfers.
From Saturday 23 October to Tuesday 26 October inclusive, Cork to Cobh and Cork to Midleton services will be suspended, with a bus replacement service in operation.
Full details of revised schedules and bus transfers can be found here.
The dates of the works include the October Bank Holiday weekend, which Iarnród Éireann says traditionally sees lower numbers of daily commuters.
Those dates also include this year's Cork Jazz Festival, which is taking place between 22 October and 25 October.