The amount of people using the train has nearly halved during the Level 5 COVID-19 restrictions.
Additionally, traffic volumes on the roads have dropped by about a quarter.
Level 5 COVID-19 restrictions started across the country on October 21st.
The Central Statistics Office says car volumes for the week ending October 31st were 25.5% lower than the previous week at regional locations, and 22.3% lower in Dublin.
But HGV volumes were unaffected by the increased restrictions in Dublin, exceeding 2019 levels for the 19th week in a row.
However, public transport use has fallen dramatically during the latest lockdown.
They've fallen by nearly 37%, with a decline across the board, but journeys by train have been most severely hit - down over 47%.
Move to Level Five restrictions evident in transport data as traffic volumes fall sharplyhttps://t.co/9TXvyQ20JO #CSOIreland #Ireland #IrishTransport #TransportIreland #Transport #RoadFreight #Logistics #Business #BusinessStatistics pic.twitter.com/7K65WUBFvX
— Central Statistics Office Ireland (@CSOIreland) November 6, 2020
Reporting by Eoghan Murphy