Gardai will be out on the roads over the next 24 hours as part of National Slow Down Day.
It comes after a continued increase in road deaths, with 127 people killed in road collisions so far this year.
A three-year-old girl who died in a road crash in Co Laois last week will be laid to rest today.
There have been 127 deaths on Irish roads so far this year; that is 23 more than the same period last year and 38 more than in 2019.
One-in-three of all deaths to date this year were persons under the age of 25, and around one-in-four were pedestrians.
Assistant Commissioner Hilman says the numbers are 'stark'.
"In August alone, we've seen a really tragic month where a quarter of all roads deaths have occurred within the month of August," she said.
"Internally we send out operational orders for the likes of today... and when I signed that operational order on the 15th of August, it said there'd been 105 road deaths on Irish roads.
"Today, two weeks later, it's 127 - and I think that is really stark.
"It's a reminder for all of us, not just on Slow Down Day, but every day of the year to slow down.
"Today had been planned in terms of our return to school campaign, but I think what we've seen on Irish roads this year, and especially in August, it makes it even more relevant today."
