Both the AA and the Government have called on drivers to exercise caution when travelling over the Christmas period.
AA Roadwatch has warned that drivers may have to contend with poor road conditions while taking longer journeys than their accustomed to.
"The best advice is to take it easy, respect speed limits and do not try to make up time lost in the tailbacks on the open road," said AA Roadwatch controller Emma Caulfield.
She advised drivers to make sure all passengers are wearing their safety belt.
"Untimely death as a result of a road collision is always tragic," said Minister for Transport, Martin Cullen.
"So far this year 391 people have lost their lives on our roads. At this particular time of year the sadness of their loss will be touched by a particular poignancy.
"The need for care when driving is a constant reality. Nearly nine out of every ten-road collisions are a direct result of the behaviour of road users. In many instances that behaviour is affected by the fact that drivers consume alcohol."
The Irish Coast Guard has also urged members of the public to be very careful over the Christmas holidays near lakes, rivers and the sea.
They have reminded Christmas swimmers that winter conditions will prevail and that alcohol and food should be avoided before entering the water.
Currently traffic volumes around the country are low but the AA expects traffic to be busy by mid-morning as people carry out last-minute shopping.
Motorists are being encouraged to avail of the park and ride facilities in Galway, Cork and Limerick. Heavy rain in Galway has caused some flooding on minor roads.
Today will be the busiest day of the festive period at Dublin Airport with over 75,000 passengers expected to travel.
Official figures indicate this will be the busiest Christmas ever at the airport with over 920,000 people expected to travel between December 21st and January 4th. This represents a 15 per cent increase over last year.
Late night revellers are reminded that late night Luas and Dart services will operate tonight.