Gardai say that, despite current Covid-19 restrictions and a reduced volume of traffic on roads, speed levels have increased.
An Garda Siochana will conduct a National Slow Down Day this Friday for a 24-hour period from 7am Friday morning.
The aim of the Slow Down Day is to remind drivers of the dangers of speeding, and to increase compliance with speed limits - thereby reducing the number of serious and fatal injuries on roads.
Excessive speed was a factor in almost one-third of all fatal collisions between 2008 and 2012, according to the Road Safety Authority, which says those most at risk are vulnerable road users such as pedestrians and cyclists.