New figures from the Central Statistics Office show that Covid-19 restrictions had a significant impact on the volume of cars and trucks on Irish roads. 

The CSO said this was especially evident in the six-week period from March 29 to May 9, when car volumes fell by more than 70% compared to the same time last year. 

There was also was a reduction of about 30% in the volume of heavy goods vehicles. 

The data shows the effect of Covid-19 restrictions on traffic volumes in Dublin was very similar to that nationwide. 

The CSO said that in the week beginning June 21, traffic volumes had recovered to just 30% below the equivalent week in 2019.

Today's figures also show that the number of passenger journeys on public transport fell by more than 10-fold from more than 5.6 million in the week starting March 1 to just over 514,000 in the week staring April 12.

The CSO noted that public transport volumes are recovering at a much slower rate than road traffic.

The figures were compiled by the CSO using data collected by the Transport Infrastructure Ireland, the Road Safety Authority and the National Transport Authority.

The analysis uses traffic counter data from selected sites to examine the changes that have occurred in traffic volumes since March.

Vehicles are counted when they pass over loops embedded in the road surface and the traffic counters can distinguish between different types of vehicles.