The NTA says Irish Rail, Dublin Bus, Go-Ahead Ireland and Bus Éireann services will be running on revised schedules.

Transport authorities say passenger numbers on public transport are generally down around 80%, but there are concerns about social distancing on some busier services.

The new Irish Rail timetables come into effect from Monday, while the changes to bus services will be in place from Wednesday.

Go Ahead services will operate at 94% of current levels, while Dublin Bus and Bus Éireann will be operating at over 80% of current levels.

Transport Minister Shane Ross said: “I would like to acknowledge the work being done by our transport operators and their staff in these difficult times and for responding to the challenges by putting these new schedules in place.

“I’d like to thank all those who are providing these essential services so that people who rely on public transport, working in hospitals, pharmacies, the grocery sector, and other vital areas, can continue to get to where they are needed to the benefit of us all.”