The bad driving habit which annoys Irish motorists the most has been revealed.
A study by Easytrip found that 62% of Irish people get annoyed when other drivers don't use their indicators.
This was followed by driving too slow in the fast lane (59%), tailgating (56%), using a mobile phone while driving (55%) and throwing litter out the window (43%).
Easytrip's Colin Delaney said:
"Correct use of the motorway is vital for everyone’s safety.
"We’ve all heard of the saying that the ‘indicator must have come as an optional extra’ but it’s clearly the number one frustration for many motorists.
"It’s important that we alert other road users to our next move while driving and that means checking your mirrors and using your indicators when changing lanes.
"It can be stressful during busy peak times, particularly on the M50, but being respectful of our fellow motorists is of benefit to all."