Motorists are being urged to take care over the bank holiday weekend. A strong garda presence will be in place during what is traditionally a dangerous period on the roads.
During June Bank Holiday weekends over the past ten years, 53 people have died in road crashes, with two people losing their lives last year.
There have been 77 deaths on Irish roads so far this year.
Gardaí hope the campaign in place over the coming days will play a role in reducing such deaths.
Commissioner Martin Callinan has said all road users have a responsibility and he urged people to report dangerous driving.
This is also the first weekend for new measures on drink-driving to be enforced.
Gardaí will carry out mandatory testing of drivers for alcohol at the scene of a crash where someone has been injured.
The Road Safety Authority said the measures along with the planned reduction in the drink-driving limits later this year will help to save lives and prevent serious injuries.
The RSA says if you are driving in the coming days the advice is simple, slow down, do not drink and drive and leave plenty of time for your journey.