171 motorists have been detected going above the speed limit in the first two hours of National Slow Down Day
Drivers in Kildare and Dublin were detected going 129 kilometres per hour in a 100 kilometre zone, while a car was found to be going 90 kilometres and hour in a 60 zone near Stranorlar in Donegal.
Locally, a driver was caught doing 83 kilometres per hour in a 60 zone on the N3 at Pollamore in Cavan and another was detected doing 68 kilometres per hour in a 50 zone on the N61 in Knockcroghery, Co Roscommon.
Gardaí say a one percent reduction in speed can result in a four percent reduction in the number of fatalities.
Chief Superintendent at the Garda National Traffic Bureau, Ray McMahon explains what they have seen over the past month: