Drivers are being warned that there could be an increase in car crashes as children return to school.
In September last year the AA found there was a significant rise in incidents, breakdowns and collisions.
The organisation’s Ruth Jephson said: “Whatever the official definition is, for a lot of Irish families, autumn starts on September 1 when the schools return.
“Those commuting during the summer may have got used to much quieter routes and better driving conditions but they are now sharing the roads with significantly more vehicles and pedestrians so vigilance is key.”
In total, during the final two weeks before the start of the new school season in 2018, 101 traffic disrupting incidents were reported to AA Roadwatch.
However, in the first two weeks of September this figure increased to 156 incidents – primarily on motorways, national roads and regional roads.
Ms Jephson revealed that the return to school and busier roads makes accidents on major roads more likely.
She added: "When we speak about incidents, these are specifically those which either disrupted traffic or were on a major route.
"For instance, we may not receive word about a minor incident on a very quiet road but when a crash occurs on a motorway or an N road we’re likely to get plenty of people bringing it to our attention due to the disruption it can bring.
“As traffic returns to peak levels from September, there is an increased risk of these incidents occurring."
